Article
Chemistry, Physical
N. A. Zhuk, N. A. Sekushin, M. G. Krzhizhanovskaya, V. A. Belyy, R. Korolev
Summary: Ni-doped CaCu3Ti4O12 ceramics were synthesized with different compositions and their electrical properties were studied. The samples exhibited high dielectric constant and low dielectric loss, which was attributed to the mechanism of ionic charge transfer predominating at room temperature, leading to significant values of impedance phase at low frequencies.
SOLID STATE IONICS
(2021)
Article
Materials Science, Textiles
Vasantha Kumar Shravanabelagola Nagaraja Setty, Govardhan Goud, Sharath Peramanahalli Chikkegowda, Sanjay Mavinkere Rangappa, Suchart Siengchin
Summary: The latest environmental legislations around the world have promoted the usage of biodegradable materials in composite structures. One major limitation of natural fibers is their incompatible hydrophilic nature. In this study, Limonia acidissima shell powder was treated with alkali chemical to enhance its properties. The treatment resulted in improved cellulose content, crystallinity index, and matrix bonding.
JOURNAL OF NATURAL FIBERS
(2022)
Article
Materials Science, Multidisciplinary
S. H. Mohamed, M. A. Awad, Mohamed Ismail Hafez, N. M. A. Hadia
Summary: The thermal oxidation of CuS powder was studied under the flow of nitrogen and dry air, revealing weight loss and exothermic peaks as CuS oxidized above 473K. X-ray diffraction showed mixed phases in the thin films, with new Cu8O phase appearing after annealing. The resistivity of the films remained constant until 543K, with sharp increase thereafter, showing both negative and positive temperature coefficients in resistivity phenomena.
BULLETIN OF MATERIALS SCIENCE
(2021)
Article
Chemistry, Physical
Guangtan Miao, Ming Yin, Peng Li, Jigong Hao, Wei Li, Juan Du, Guorong Li, Chunming Wang, Peng Fu
Summary: This study investigates the influence of Cr on the structure and electrical properties of CCCTO ceramics. It was found that Cr doping suppressed abnormal grain growth, resulting in a more uniform grain size distribution, and all samples exhibited a noticeable Negative Temperature Coefficient (NTC) effect.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Polymer Science
S. Anne Kavitha, R. Krishna Priya, Krishna Prakash Arunachalam, Siva Avudaiappan, Nelson Maureira-Carsalade, Angel Roco-Videla
Summary: This study focuses on extracting and characterizing the novel root fibers of Zea mays plant for potential use in composites. Various tests were conducted to analyze the structural, thermal, elemental, and mechanical properties of both untreated and treated fibers. The results indicate that Zea mays root fibers can be used as effective reinforcement for polymeric composites.
Article
Materials Science, Multidisciplinary
N. A. Zhuk, M. G. Krzhizhanovskaya, N. A. Sekushin, V. V. Kharton, L. A. Koksharova
Summary: The thermal behavior and electrical properties of Fe-doped CaCu3Ti4O12 ceramics samples have been thoroughly studied, indicating good thermal stability and ionic conductivity of the samples, along with unique thermal expansion characteristics at high temperatures.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Thermodynamics
V. Correcher, M. Topaksu, M. Furio, J. Garcia-Guinea
Summary: This paper investigates the thermal effect on the luminescence emission of paracetamol tablets exposed to ionizing radiation. The results show that the thermoluminescence emission remains stable, indicating no damage to the structure of paracetamol. The behavior observed suggests the existence of a continuum in the trap system, supported by the calculated activation energy values and the absence of lattice structure variation in thermally treated samples.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2023)
Article
Chemistry, Physical
K. Anitha, M. Subha, M. Tamil Elakkiya
Summary: The study explores the crystal structure and properties of the molecular complex of 3-hydroxy pyridinium 2-hydroxy benzoate using various analytical techniques. It investigates the crystal structure conformation, fluorescence spectra, NMR spectra, as well as nonlinear optical and thermal stability properties of the crystal. The research provides insights into the structural, electronic, and reactivity properties of the crystal through computational methods.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Materials Science, Ceramics
Guohua Fan, Ting Feng, Yunpeng Qu, Chuncheng Hao, Yao Liu
Summary: In this study, carbon nanotubes/TiN/CaCu3Ti4O12 ternary composites were prepared, and the effects of dual fillers on the dielectric properties of the composites were investigated. The composites exhibited a capacitive-inductive transition and negative permittivity, which was regulated by changing the filler content or adjusting the microstructure. The conduction loss dominated the dielectric loss mechanism of the composites. The clarification of the realization and regulation mechanism of negative permittivity provides insights for the preparation and development of negative permittivity materials.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Multidisciplinary
S. A. Nouh, M. Me Barakat, K. Benthami, R. M. Samy, N. Elhalawany
Summary: The effects of gamma radiation on the structure and thermal properties of PANI-Co/PC nanocomposite (NCP) were studied. The intermolecular crosslinking increased due to gamma radiation, leading to improved thermal stability of the NCP samples.
Article
Materials Science, Ceramics
Haibo Yu, Yuying Zhang, Xiaolin Zhang, Da Wang, Ruiqing Chu, Zhijun Xu
Summary: CaCu3Ti4O12-xwt%BiSbO4 ceramics were prepared by solid-state reaction method, and their microstructure, dielectric properties, varistor properties, and photoluminescence properties were studied. The results showed that doping BSO improved the grain boundary characteristics and electrical properties of the ceramics, resulting in better temperature stability and non-linear electrical characteristics. Additionally, the addition of BSO enhanced the photoluminescent emission of the ceramics, indicating potential applications in novel devices with photoluminescent/electrical multifunctional properties.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Inorganic & Nuclear
Swati K. Gaikwad, Shahaji P. Kharat, Keerthi Haritha, Yesh D. Kolekar, C. V. Ramana
Summary: This study investigates the effects of rare-earth (RE) cations Dy3+ and Tb3+ on the Co-Ni mixed ferrite materials for stress/torque sensor applications. By studying the influence of different compositions on the structure, morphology, chemical bonding, and magnetic properties of the NCFDT materials, the structure-property optimization has been achieved, enabling the realization of magnetostrictive NCFDT for sensor applications.
INORGANIC CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Falguni Bhadala, Lokesh Suthar, M. Roy
Summary: Polycrystalline ceramic samples of BiFe1-xZnxO3 were prepared by sol-gel synthesis method, and characterized by X-ray analysis, Rietveld analysis, and atomic force microscopy for surface morphology. The study also investigated dielectric parameters, electrical modulus, activation energies, thermal stability, and FTIR spectra to explain the material properties.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Pu Mao, Congbin Zeng, Yongguang Guo, Gang Lu, Qingsong Yan, Zhiyong Liu, Bing Xie, Yingying Zhao, Kun Guo, Lixue Zhang
Summary: In this study, the electrical heterogeneity of CaCu3Ti4O12 (CCTO) ceramic was modulated through the introduction of nano ZnO. The CCTO-ZnO samples exhibited significantly enhanced dielectric and nonlinear properties, with a colossal dielectric constant of 104-105 at room temperature. The stability of dielectric constant in a wide frequency range and over a temperature scope was improved, and the x = 0.04 sample showed relatively lower room-temperature dielectric loss. Moreover, the breakdown field strength and nonlinear coefficient of CCTO-ZnO ceramics were improved, attributed to the tunable electrical heterogeneity according to the internal barrier layer capacitor (IBLC) model.
MATERIALS RESEARCH BULLETIN
(2023)
Article
Chemistry, Physical
Manas Kumar Mandal, Manas Barai, Emili Manna, Habiba Sultana, Raja Ghosh, Dulal Musib, Kaushik Nag, Amiya Kumar Panda
Summary: The salt free surface active ionic liquids (SAILs) [bmim]DS and [bmp]DS were synthesized by mixing IL and SDS. The interfacial and aggregation behavior of SAILs were investigated, showing differences compared to the precursor surfactant SDS. SAILs have dual advantages of surfactant and IL with lower toxicity levels.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
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)