Review
Nanoscience & Nanotechnology
Wu Zhang, Haizeng Li, Eric Hopmann, Abdulhakem Y. Elezzabi
Summary: Electrochromism, an emerging energy conversion technology, is facing the major challenge of slow switching speed, especially in inorganic materials. Efficient design of nanostructured electrochromic materials is essential to achieve rapid switching speed and enhance their performance in real-world applications.
Review
Nanoscience & Nanotechnology
Wu Zhang, Haizeng Li, Eric Hopmann, Abdulhalcem Y. Elezzabi
Summary: Electrochromism is a promising energy conversion technology with diverse applications, but the major challenge lies in the slow switching speed in inorganic materials. Efficient design of nanostructured electrochromic materials is crucial for achieving rapid switching speeds. Various classification and synthesis methods for electrochromic materials were discussed in the review, along with outlining challenges and prospects for high-performance nanostructured electrochromic materials.
Article
Chemistry, Multidisciplinary
Evgeny A. Ekimov, Vladimir S. Krivobok, Mikhail V. Kondrin, Dmitry A. Litvinov, Ludmila N. Grigoreva, Aleksandra V. Koroleva, Darya A. Zazymkina, Roman A. Khmelnitskii, Denis F. Aminev, Sergey N. Nikolaev
Summary: This study focused on the size-controllable synthesis of high-quality SiC nanocrystals, demonstrating the ability to tune crystal size by adjusting synthesis temperature. Optical properties of the SiC crystals were investigated, providing insights into carrier distribution in nanoparticles.
Article
Chemistry, Multidisciplinary
Qichuan Hu, Jing Liu, Hailong Yu, Hanqi Xu, Jinyang Yu, Wenzhi Wu
Summary: This study discovered new luminescent materials where organic cations such as tetrabutylammonium can serve as the sole luminescence centers for metal halides, even without benzene or aromatic rings.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Tatyana B. Bekker, Alexey A. Ryadun, Alexey V. Davydov, Vladimir P. Solntsev, Veronika D. Grigorieva
Summary: Single crystals of undoped and rare-earth-doped Ba-12(BO3)(6)[BO3][LiF4] were grown from high-temperature solutions. The luminescence of these crystals at specific excitation wavelengths shows potential for converting LED emissions into white light.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Review
Chemistry, Multidisciplinary
Basmah H. Alshammari, Maha M. A. Lashin, Muhammad Adil Mahmood, Fahad S. Al-Mubaddel, Nasir Ilyas, Nasir Rahman, Mohammad Sohail, Aurangzeb Khan, Sherzod Shukhratovich Abdullaev, Rajwali Khan
Summary: Nanomaterials and nanoparticles are rapidly growing fields in research and technology, with a wide range of applications. Nanoparticles are categorized based on their size, shape, and structure, and have been widely used in engineering and semiconductor device production. ZnO is a stable semiconductor material that is used in various products, from batteries to biomedical sensors. Different growth methods have been developed to synthesize ZnO nanostructures at low temperatures. This review focuses on recent advancements in fabricating semiconductor devices using nanostructured materials and discusses the challenges and prospects in this research field.
Article
Crystallography
Ming Yao, Gang Xu, Mingtao Zhang, Linghang Wang, Binbin Zhang, Jinmeng Zhu
Summary: Single crystals of CH3NH3HgI3 were prepared using the anti-solvent method, and the crystal structure and optical properties were investigated. The results revealed that CH3NH3HgI3 belongs to the monoclinic structure and has a one-dimensional chain structure. It has some similarities to HgI2 and shows potential as a UV detector material.
JOURNAL OF CRYSTAL GROWTH
(2022)
Article
Crystallography
S. Vinoth, Vaithinathan Karthikeyan, Vellaisamy A. L. Roy, Bhuvanesh Srinivasan, P. Thilakan
Summary: Bismuth Telluride (Bi2Te3) nanocrystallites were synthesized by solvothermal method and characterized by FESEM, XRD, Raman, and laser flash measurements. The surfactant-free growth resulted in incomplete hexagonal flake-like (BTFL) structures, while the PVP surfactant mixed growth produced complete hexagonal morphologies (BTHP). The thermal conductivity, electrical conductivity, and ZT value of the samples were measured and analyzed, showing different behaviors for BTFL and BTHP samples.
JOURNAL OF CRYSTAL GROWTH
(2023)
Article
Chemistry, Physical
Marjana Simonic, Darko Goricanec, Danijela Urbancl
Summary: This study found that pressure has an effect on the crystalline properties of CaCO3, which does not occur immediately after CaCO3 precipitation, but starts to change after 15 minutes of processing. Except for one case where aragonite was precipitated, calcite was found in all experiments.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
Tejaswi Ashok Hegde, Atanu Dutta, T. C. Sabari Girisun, G. Vinitha
Summary: The aqueous reaction of piperazine and copper chloride dihydrate resulted in the formation of a stable ionic cocrystal known as PCu. This cocrystal showed promising characteristics for nonlinear optical device applications, particularly in terms of two-photon absorption and optical limiting phenomena. The theoretical and experimental analyses supported the potential of PCu cocrystal for optofunctional applications.
CHEMICAL PHYSICS LETTERS
(2021)
Article
Chemistry, Inorganic & Nuclear
Ziyi Chen, Dajiang Mei, Xiaoming Jiang, Jun Zhao, Yuandong Wu, Jihu Wang, Shaoguo Wen
Summary: The quaternary chalcogenide LiGaSiS4 was prepared through a high-temperature reaction and exhibits good thermal stability and a large band gap. The crystal structure of LiGaSiS4 is based on a three-dimensional framework and the optical properties are closely related to the characteristics of the chemical bonds.
JOURNAL OF SOLID STATE CHEMISTRY
(2022)
Article
Physics, Condensed Matter
Wan-Ting Wan, Yao-Lin Hu, Ying Xu, Dai-Feng Zou, Hui-Lin Li, Congbing Tan, Yu-Qing Zhao
Summary: Lead-based organic-inorganic hybrid halide perovskites have shown potential in optoelectronics, but their toxicity and instability are limiting factors. This study examines the properties of new mixed metal double perovskites Cs2AgSb1-xGaxI6 and identifies Cs2AgSb0.5Ga0.5I6 as a semiconductor with the lowest band gap and hole effective masses, while Cs2AgGaI6 exhibits metal behavior.
SOLID STATE COMMUNICATIONS
(2022)
Review
Chemistry, Multidisciplinary
Zilong Guo, Guo Yu, Zhiguo Zhang, Yandong Han, Guijian Guan, Wensheng Yang, Ming-Yong Han
Summary: The collective oscillation of free electrons at the nanoscale surface of gold nanostructures is modulated by various factors, including size, shape, phase, composition, assembly, and surroundings. These modulation techniques lead to changes in optical properties, metal-field-enhanced optical signals, luminescence spectral shaping, chiroptical response, and photogenerated hot carriers. The rich optical properties of gold nanostructures have enabled a wide range of applications in nanoscience and nanotechnology, including full-color displays, solar energy harvesting, photochemical reactions, optical sensing, and biomedical imaging.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Amelie Heuer-Jungemann, Veikko Linko
Summary: Nucleic acid nanotechnology enables user-friendly design and synthesis of DNA frameworks with extreme accuracy and addressability, making them ideal for positioning and organizing molecules into complex assemblies. One emerging concept in the field is the creation of inorganic and hybrid materials through programmable DNA templates, but this approach also presents challenges.
ACS CENTRAL SCIENCE
(2021)
Editorial Material
Materials Science, Multidisciplinary
Bikshandarkoil R. Srinivasan
Summary: This comment discusses the research on growing BCB single crystals from the journal Materials Letters, raising concerns about the crystal growth reaction and characterization data, ultimately questioning the authenticity of the material.
Article
Instruments & Instrumentation
Zeng Liu, Shaohui Zhang, Maolin Zhang, Junpeng Fang, Ling Du, Jian Zhang, Chang Xu, Yufeng Guo, Weihua Tang
Summary: In this paper, a Ga2O3-based pressure sensor is introduced using the technique of metalorganic chemical vapor deposition thin film growth. Although Ga2O3 is an important semiconductor material for functional electronics and optoelectronics, there has been limited research on Ga2O3-based pressure sensors. However, this study demonstrates that the fabricated Ga2O3-based pressure sensor exhibits good sensing performance for different pressures. The sensor shows an increase in current by two orders of magnitude under a pressure of 5 kPa. Additionally, the response/release times were measured under different pressures ranging from 1 to 20 kPa. This work provides a potential method for constructing smart pressure sensors based on functional Ga2O3.
SMART MATERIALS AND STRUCTURES
(2023)
Article
Multidisciplinary Sciences
Qingyi Zhang, Ning Li, Tao Zhang, Dianmeng Dong, Yongtao Yang, Yuehui Wang, Zhengang Dong, Jiaying Shen, Tianhong Zhou, Yuanlin Liang, Weihua Tang, Zhenping Wu, Yang Zhang, Jianhua Hao
Summary: By lattice and band engineering, Zhang et al. constructed a unipolar barrier avalanche photodiode with suppressed dark current and reinforced reverse breakdown. Ga2O3-based solar blind avalanche photodetectors exhibit low voltage operation, optical filter-free and monolithic integration of photodetector arrays, and therefore they are promising to be an alternative to the bulky and fragile photomultiplier tubes for weak signal detection in deep-ultraviolet region. These findings provide insights into precise manipulation of band alignment in avalanche photodetectors, and also offer exciting opportunities for further developing high-performance Ga2O3-based electronics and optoelectronics.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Zhuolu Li, Yingjie Lyu, Zhao Ran, Yujia Wang, Yang Zhang, Nianpeng Lu, Meng Wang, Michel Sassi, Thai Duy Ha, Alpha T. N'Diaye, Padraic Shafer, Carolyn Pearce, Kevin Rosso, Elke Arenholz, Jenh-Yih Juang, Qing He, Ying-Hao Chu, Weidong Luo, Pu Yu
Summary: Magnetic spinel oxides have been extensively studied due to their rich physics and wide range of applications. However, structural imperfections often lead to suppressed magnetization. In this study, an enhanced magnetization of CoFe2O4 (CFO) was achieved through ionic liquid gating induced hydrogen doping, resulting in a 5 mu(B)/u.c increase. The intercalated hydrogen ions induced lattice expansion and Fe valence state reduction, leading to a site-specific spin-flip and enhancing the net ferrimagnetic moment.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Lei Gao, Huimin Wang, Fanqi Meng, Huining Peng, Xiangyu Lyu, Mingtong Zhu, Yuqian Wang, Chao Lu, Jin Liu, Ting Lin, Ailing Ji, Qinghua Zhang, Lin Gu, Pu Yu, Sheng Meng, Zexian Cao, Nianpeng Lu
Summary: It is demonstrated that hydrogen ion can induce giant lattice distortion and enhanced octahedra tilting/rotation in perovskite nickelate NdNiO3 thin film, forming a new robust hydrogenated HNdNiO3 phase. Moreover, the proposed electronic antidoping mainly fills the oxygen 2p holes and the lattice modification mainly modifies the orbital density of states. Selective micrometer-scale patterns with distinct structural and electronic states can be fabricated by electric-field-controlled hydrogen-ion intercalation and its strong coupling to the lattice and electron charge.
ADVANCED MATERIALS
(2023)
Article
Physics, Applied
Shan Li, Lili Yang, Zeng Liu, Maolin Zhang, Yufeng Guo, Weihua Tang
Summary: This study reported an ultraviolet photodetector constructed on a simple vertical PEDOT:PSS/SiC hybrid heterojunction, which demonstrated superior self-powered performance. The SiC based photodetector achieved self-powered responsivity over A/W level, comparable with many reported 4H-SiC avalanche photodiodes, due to the abundant charge carrier concentration in 4H-SiC substrate and the large built-in field at PEDOT:PSS/SiC heterointerface. The fabricated PD showed high responsivity, detectivity, and external quantum efficiency, fast rise/decay time, large on-off switching ratio, high spectral rejection ratio, and long lifetime reliability.
APPLIED PHYSICS LETTERS
(2023)
Article
Engineering, Electrical & Electronic
Lei Li, Zeng Liu, Kai Tang, Shu-Lin Sha, Shao-Hui Zhang, Ming-Ming Jiang, Mao-Lin Zhang, Ang Bian, Yu-Feng Guo, Wei-Hua Tang
Summary: In this study, a Ga-doped ZnO/AlGaN heterojunction is introduced for UV photodetection, which is enhanced by the pyro-photoelectric effect coupling. The self-powered UV photodetector exhibits a responsivity of 0.063 mA W-1 under illumination and an increased photocurrent of 45 pA after pyro-photoelectric enhancement. The heterojunction UV photodetector can operate in both forward-biased photoconductive mode and reverse-biased depletion mode, with a fast temporal laser response.
IEEE SENSORS JOURNAL
(2023)
Article
Engineering, Electrical & Electronic
Li-Li Yang, Zeng Liu, Qiang Xu, Mao-Lin Zhang, Shan Li, Yu-Feng Guo, Wei-Hua Tang
Summary: By introducing sporadic Ag nanostructures via a facile room-temperature magnetron sputtering technology and subsequent low-temperature annealing process, a local Schottky junction is formed at the interface between In electrodes and amorphous Ga2O3 film in the InAg/amorphous Ga2O3-In metal-semiconductor-metal (MSM) photodetector. The constructed Schottky barriers result in an extremely low dark current and excellent photodetection performance.
IEEE SENSORS JOURNAL
(2023)
Article
Engineering, Electrical & Electronic
Maolin Zhang, Wanyu Ma, Shan Li, Lili Yang, Zeng Liu, Yufeng Guo, Weihua Tang
Summary: By fabricating and studying a Ga2O3 metal-semiconductor-metal (DUV PD) detector, we found that it has good detection performance, but the performance decreases with increasing temperature.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2023)
Article
Crystallography
Suhao Yao, Kemeng Yang, Lili Yang, Ganrong Feng, Maolin Zhang, Yufeng Guo, Weihua Tang
Summary: This study investigated the performance of beta-Ga2O3-based Schottky barrier diodes (SBDs) with floating metal rings (FMRs) using numerical simulations. The simulation parameters of beta-Ga2O3 were extracted from experimental results. The device exhibited similar forward conduction characteristics to SBDs without FMRs and its breakdown characteristics were influenced by various structural parameters. An optimized device achieved a breakdown voltage 2.5 times higher than a device without FMRs. The study also showed that the breakdown voltage with such structures can reach at least 1.5 times higher than that of a device without FMRs for general conditions.
Article
Engineering, Electrical & Electronic
Gao-Hui Shen, Zeng Liu, Mao-Lin Zhang, Yu-Feng Guo, Wei-Hua Tang
Summary: This paper introduces a 16 x 16 Ga2O3 photodetector array, in which Ga2O3 thin film was deposited on a c-sapphire substrate using metal-organic chemical vapor deposition. The array device was constructed through UV photolithography, lift-off, and electron-beam evaporation techniques. The photodetector showed good wavelength selectivity with a high rejection ratio of 8 x 10(3). It exhibited a fast response ability, with a rise time of 6 ms and a decay time of 48 ms, when excited by a laser. The dark current of the 256 pixels in the array ranged from 2 pA to 4 pA, without any disparity.
IEEE ELECTRON DEVICE LETTERS
(2023)
Article
Engineering, Electrical & Electronic
Zeng Liu, Shu-Lin Sha, Gao-Hui Shen, Ming-Ming Jiang, Mao-Lin Zhang, Yu-Feng Guo, Wei-Hua Tang
Summary: In this letter, an improved Ga2O3 solar-blind photodetector is presented, which utilizes Ga2O3 thin film grown by metalorganic chemical vapor deposition. The introduction of Pt nanoparticles as decoration on the Ga2O3 photodetector resulted in significant enhancements in responsivity, detectivity, and external quantum efficiency. The improvement is attributed to the resonance between optimal Pt nanoparticles and Ga2O3, leading to enhanced photon absorbance and carrier injection.
IEEE ELECTRON DEVICE LETTERS
(2023)
Article
Engineering, Electrical & Electronic
Qing Yao, Jing Chen, Yuxuan Dai, Jiafei Yao, Jun Zhang, Maolin Zhang, Jianhua Liu, Weihua Tang, Jinping Zhang, Bo Zhang, Yufeng Guo
Summary: In this article, a novel technique for predicting the static output characteristics of IGBTs is proposed by combining compact models and artificial neural networks (ANNs). The method utilizes model parameters in the electronic design automation (EDA) circuit simulator to obtain output characteristics, and a phased prediction (PP) scheme is introduced to reduce the prediction error. The effectiveness of the method is verified by comparing results with TCAD simulation and datasheet, and the method significantly improves speed and reduces design cost compared to TCAD simulation.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2023)
Article
Engineering, Electrical & Electronic
Xue-Qiang Ji, Ming-Yu Liu, Zu-Yong Yan, Shan Li, Zeng Liu, Xiao-Hui Qi, Jian-Ying Yuan, Jin-Jin Wang, Yuan-Chun Zhao, Wei-Hua Tang, Pei-Gang Li
Summary: A surface VO defect compensation engineering using oxygen-plasma treatment was conducted to improve the device performance of beta-Ga2O3 film. The treated photodetectors showed significantly improved dark current, responsivity rejection ratio, rise and decay speed, and high sensitivity to detect weak UV signals.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2023)
Article
Physics, Applied
Xueqiang Ji, Xiaohui Qi, Jianying Yue, JinJin Wang, Zuyong Yan, Shan Li, Zeng Liu, Weihua Tang, Peigang Li
Summary: A nonthermal N plasma-based treatment is proposed to obtain a doped surface on ss-Ga2O3 films, which enhances the luminescence effect related to acceptor defects. The surface conductive properties are enhanced by the defect compensation of oxygen vacancy (VO) donor defects. Detailed investigations into the surface defect compensation of N-doped Ga2O3 thin films have great research potential for device applications.
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Physics, Condensed Matter
Jin Liu, Lei Gao, Yu Ting Zou, Ting Lin, Ming Tong Zhu, Xiang Yu Lyu, Chao Lu, Yu Qian Wang, Ai Ling Ji, Qing Hua Zhang, Zhi Gang Cheng, Lin Gu, Ze Xian Cao, Nian Peng Lu
Summary: High-quality RuO2 thin films with clear lattice structure were obtained through optimizing the growth conditions. The electronic transport was studied, and emergent electronic states and the relevant physical properties were unveiled. The complex phase diagram with multiple intriguing emergent electronic states over a wide temperature range was mapped.
JOURNAL OF PHYSICS-CONDENSED MATTER
(2023)
Article
Materials Science, Multidisciplinary
Madeeha Riaz, Manahil Najam, Hina Imtiaz, Farooq Bashir, Tousif Hussain
Summary: This study focuses on the structural and biological analysis of Zn-Cu based biodegradable alloys for orthopedic applications. The results indicate that the alloys have good electrical conductivity and biocompatibility, with potential for promoting bone growth and healing process. Additionally, the alloys exhibit a low corrosion rate and improved corrosion resistance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Rijo Rajeev, Sk Safikul Islam, Anitha Varghese, Gurumurthy Hegde, Suryasarathi Bose
Summary: In this study, a facile and selective electrochemical sensor was developed for the sensing of guanosine. The sensor utilized a unique porous structure and ordered framework, enabling linear detection of guanosine concentration in the range of 0.123-720 μM under specific conditions.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Rafael V. M. Freire, Dominique Celeste de A. Dias, Jose Yago Rodrigues Silva, Dayane Kelly Dias do Nascimento Santos, Larissa T. Jesus, Ricardo O. Freire, Severino A. Junior
Summary: This study reports the extraction and isolation of euphol from nature, its adsorption in nanosized ZIF-8, and the efficacy of this system against cancer cells. Experimental and simulation results show that ZIF-8 can enhance the effectiveness of euphol against cancer cells and selectively target cancer cells.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Manal A. Awad, Awatif A. Hendi, Maha M. Almoneef, Maymunah Alwehaibi, Khalid M. Ortashi, Wadha Alenazi, Fatimah S. Alfaifi, Shareefa Alahmariye, Asma Alangery, Warda Ali Alghoubiri, Haia Aldosari
Summary: In this study, magnesium-doped zinc oxide nanoparticles were synthesized and characterized. The research findings show that magnesium doping can alter the crystal structure and optical properties of zinc oxide, while enhancing its dielectric constant.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
F. J. Willars-Rodriguez, I. R. Chaverz-Urbiola, M. A. Hernandez-Landaverde, A. Zavala-Franco, E. A. Chavez-Urbiola, P. Vorobiev, Yu V. Vorobiev
Summary: This study focuses on manganese doped CdS thin films synthesized by chemical bath deposition. The incorporation of Mn2+ cations in CdS was found to influence the crystalline structure, morphology, and optoelectronic properties. Doped thin films exhibited a uniform hexagonal structure, changed growth orientation, and showed scale-like and needle-like morphologies. The bandgap and rectification speed of Schottky diodes were modified by introducing manganese. This study suggests the potential for affordable high-speed optoelectronic devices.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Mehdi Javidi, Hooman Karimi Abadeh, Fatemeh Namazi, Hamid Reza Yazdanpanah, Narjes Shirvani Shiri
Summary: This study investigated the synergistic effect of temperature, solution velocity, and sulphuric acid concentration on the corrosion behavior of carbon steel using response surface methodology. The results showed that temperature affected anodic reactions, solution velocity influenced cathodic reactions, and acid concentration altered the corrosion mechanisms by changing the properties of the surface layer.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
R. Sakthivel, Thirumoorthy Kulandaivel, Kirankumar Venkatesan Savunthari, K. Mohanraj, Hans-Uwe Dahms, Aswin kumar Anbalagan, Manjunath Rangasamy, Kien-Voon Kong
Summary: In this study, saturated fatty acids were incorporated with silane to modify viscose fabric, resulting in superhydrophobic and superoleophilic properties. The modified fabric showed excellent separation efficiency for oil and organic solvents, with high absorption capacity. The modified fabric also exhibited durability and retained its properties in harsh conditions.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Wei Zhang, Hong Lei, Wenqing Liu, Zefang Zhang, Yi Chen, Xiaogang Hu, Xiangshan Ye
Summary: In this study, EDTA-grafted alumina composite abrasives were produced by a two-step process for the CMP of sapphire substrates. Experimental results showed that the modified abrasives exhibited better dispersion properties and significantly improved polishing efficiency, with higher material removal rates and lower surface roughness. The combination of chemical reaction and mechanical action enhanced the CMP performance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Shumaila Rafaqat, Bushra Perveen, Warda Raqba, Warda Imran, Arshad Hussain, Naeem Ali
Summary: This study developed a MnP-based biosensor for quantitative measurement of dye concentrations using electrochemical signals. The effects of two different dyes on MnP activity were investigated, with one dye showing inhibitory effects and the other dye having no effect. The study demonstrates the potential application of enzyme-based biosensors in dye detection and toxicological monitoring.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Jinyan Shi, Oguzhan Yavuz Bayraktar, Baris Bayrak, Burak Bodur, Ali Oz, Gokhan Kaplan, Abdulkadir Cuneyt Aydin
Summary: The elemental composition of precursors is crucial for the performance development of geopolymers. The use of lime instead of metakaolin increases the fluidity and mechanical properties of geopolymers, while the addition of gypsum decreases them. Furthermore, higher lime content exacerbates the negative effect of gypsum.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Aayush Gupta, Kaveri Ajravat, Loveleen K. Brar, O. P. Pandey, Pandey Rajagopalan
Summary: This study focuses on the performance of Mn3O4-ZnO composite material in wastewater treatment and energy storage applications, and presents a detailed comparative analysis. Results show that the composite material with equal concentrations of Mn3O4 and ZnO exhibits excellent photocatalytic activity and high capacitance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
V. Murugabalaji, Matruprasad Rout, Harsh Soni, Biranchi Narayan Sahoo
Summary: This study focuses on the corrosion characteristics of AA 7075 and AA 7075 based hybrid composite fabricated using stir casting and hot rolling techniques. The results show that the hybrid composite produced by hot cross rolling exhibits better corrosion resistance compared to the base metal. The addition of a small amount of graphite improves the bonding between the matrix and reinforcements, and the hot cross rolling enhances this bonding, leading to the formation of a strong passivation oxide layer and increased charge transfer resistance, thereby improving corrosion resistance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Fangkun Ning, Qinghao Shi, Shuping Kong, Weitao Jia, Lifeng Ma
Summary: The paper investigates a new method of rolling sheets with variable chamfering amounts in both the transversal and normal directions. The feasibility of the technological process was tested through simulation and compared with experimental results. Three important process parameters, temperature, stress, and flow velocity, were used to evaluate the effects on chamfering amount before determining the optimal angle. The spread formula for evaluating the shape quality of the plate after ECR was obtained through testing and theory.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Aqeel Abbas, M. A. Hussein, Mohamed Javid
Summary: In this study, the AM60 magnesium alloy was processed using high-energy ball milling, and the results showed that different reinforcement agents had certain effects on particle size, crystallite size, lattice strain, and dislocation density.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
D. S. Mahmoud, E. M. Eldesouki, W. M. Abd El-Gawad
Summary: The development of flexible and lightweight microwave-absorbing materials has become a trendy topic. This study focuses on enhancing the microwave-absorbing performance of butadiene-acrylonitrile rubber (NBR) by incorporating novel reinforcing nanofillers. The results show that the NBR nanocomposite with a loading of 16 parts per hundred rubber (phr) of LiFe 20%/Si has the best microwave-absorbing performance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
