Article
Chemistry, Physical
Zhibo Xu, Furi Ling, Zhenhe Hong, Yebin Xu
Summary: Ba0.5Sr0.5TiO3-MgO composite ceramics were prepared through spark plasma sintering and characterized for their phase composition, microstructures, and dielectric properties. With the increase of MgO content, the dielectric constant of the composite ceramics decreases drastically, while the tunability remains relatively stable and even increases between 0% and 30% MgO content. A high tunability of 16.53% and a relatively low dielectric constant of 415 were achieved at 3 kV/mm, 10 kHz when the MgO content was 30%. The tunability of this composite was even higher than that of pure Ba0.5Sr0.5TiO3 under the same electric field conditions, indicating the effectiveness of spark plasma sintering in suppressing ion diffusion and improving tunability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Ceramics
Yuze Xue, Le Xin, Mingwei Zhang, Panpan Lyu, Luchao Ren, Jiwei Zhai
Summary: Double sintering effectively improves the performance of Ba0.5Sr0.5TiO3-ZnAl2O4 composite ceramics, resulting in higher density, more uniform grain size distribution, and reduced dielectric permittivity, oxygen vacancy content, and grain boundary resistance. The optimum dielectric tunability and Q value are 23.4% and 276, respectively. Double sintering is an effective strategy for adjusting the properties of composite ceramics.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Chandra Obulesu Bapanapalle, Ankit Shrivastava, Pritam Biswas, Prabhat Kumar Prajapati, Ved Prakash, Nilrudra Mandal
Summary: The primary goal of this research is to investigate the sinterability of zirconia toughened alumina (ZTA) at low temperature using two different sintering techniques. The solubility limits of TiO2 in ZTA are identified to be 2 wt% and 3 wt% for hot press and cold press sintering respectively, resulting in improved physical and mechanical properties. However, further addition of TiO2 leads to the formation of secondary phases and deteriorates the material's properties.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Materials Science, Ceramics
Xi Wang, Shicheng Zhou, Kaiyang Liu, Shan Deng, Yaqi Xiao, Xiuli Chen, Huanfu Zhou
Summary: Extensive research has been conducted on microwave dielectric materials for their application in 5G and 6G communication technologies. This study broadened the sintering temperature range of MT-C ceramics using a composite of CeO2 and Mg2TiO4 ceramics, and stabilized their microwave dielectric performance. The prepared MT-C ceramics exhibited low loss and uniform density, making them suitable for industrial applications in the field of communication.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Yanjun Liu, Guoqiang He, Yinghan He, Haiqing Deng, Xiaoli Wei, Pengxiang Gao, Hongtian Li, Hailan Qin, Xin Qu, Yaqi Xiao, Shan Deng, Kaiyang Liu, You Wu, Huanfu Zhou
Summary: Sr3Y2Ge3O12 ceramics with cubic garnet structure were prepared by solid-phase reaction. The ceramics exhibited relatively dense and homogeneous microstructures with clear grain boundaries at the optimum sintering temperature, as confirmed by X-ray diffraction and scanning electron microscopy. The dielectric constant and quality factor showed a strong correlation with bulk density. The sintered Sr3Y2Ge3O12 ceramic at 1275 degrees C demonstrated good microwave dielectric properties, with epsilon r = 7.23, Q x f = 27203 GHz, and tau f =-26.79 ppm/degrees C. The value of Q x f increased to 45000 GHz at an ambient temperature of 150 degrees C. A high bulk density of 4.68 g/cm3 and a relative density of 92.9% were also achieved.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Hicham Mahfoz Kotb, Hassan A. Khater, Osama Saber, Mohamad M. Ahmad
Summary: NSCTO ceramics were prepared by reactive sintering solid-state reaction, and the influence of sintering temperature on structural and dielectric properties was thoroughly studied. The ceramic sample sintered at 1025 degrees C showed the best compromise between colossal relative permittivity and low dielectric loss values.
Article
Materials Science, Ceramics
Guoqiang He, Xinyue Ma, Yanjun Liu, Yinghan He, Yaqi Xiao, Xin Qu, Shan Deng, Kaiyang Liu, Xi Wang, Shicheng Zhou, Qing Li, Zhengli Dai, You Wu, Xiuli Chen, Huanfu Zhou
Summary: A SrY2O4 microwave dielectric ceramic suitable for 5G systems is synthesized via a solid-state reaction, showing excellent performance at the optimal sintering temperature and indicating to be a good choice for 5G equipment.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Ahrong Jeong, Koichiro Suekuni, Michitaka Ohtaki, Byung-Koog Jang
Summary: The study focused on fabricating indium- and gallium-doped zinc oxide ceramics and analyzing their crystal structure and microstructure to understand the relationship between different compositions. It was found that doping with In and Ga promoted the solubility of Ga and led to the highest power factor obtained at 1046K. Additionally, doping with In and Ga reduced the thermal conductivity at temperatures between 340-530K.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
B. Masin, K. Ashok, H. Sreemoolanadhan
Summary: Microwave dielectric ceramic powder of 0.95(Mg0.95Zn0.05)TiO3-0.05CaTiO(3) (MCT) was prepared using solid-state reaction method and different sintering techniques were employed. The hybrid microwave sintering technique showed better dielectric properties compared to other techniques.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Chemistry, Physical
Ruyi Han, Huimin Cao, Bo Li
Summary: The addition of H3BO3 to Ca2V2O7 ceramics significantly affects the microstructure, sintering mechanism, and microwave dielectric properties, resulting in reduced sintering temperature and improved performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Ceramics
T. Gecil Evangeline, A. Raja Annamalai
Summary: The colossal dielectric response of La-doped CaCu3Ti4O12 ceramics has been investigated in this study. The effects of La3+ on the microstructural and crystallographic properties have been analyzed using SEM, EDS, and XRD. The results show that La-doped samples exhibit higher dielectric constant and lower loss factor than pure CCTO.
CERAMICS INTERNATIONAL
(2022)
Article
Physics, Multidisciplinary
Xiao Li, Xizhi Yang, Yuanming Lai, Qin Zhang, Baoyang Li, Cong Qi, Jun Yin, Fanshuo Wang, Chongsheng Wu, Hua Su
Summary: A series of MgAl2-x (Li1/3Ti2/3)( x )O-4 ceramics with different compositions were prepared and their phase compositions, microstructures, and microwave dielectric properties were studied. The results showed that the ceramics had a spinel structure when x <= 0.12, and a second phase of MgTi2O5 appeared when x > 0.12. The doping of (Li1/3Ti2/3)(3+) into MgAl2O4 spinel ceramics effectively reduced the sintering temperature and improved the quality factor (Q (f)). Good microwave dielectric properties were achieved for the sample with x = 0.20. The Q (f) value of the x = 0.20 sample was about 2 times higher than that of pure MgAl2O4 ceramics, making it a promising material for 5G communications.
Article
Engineering, Electrical & Electronic
Zheng Liang, Xuening Han, Gang Wang, Yan Yang, Liang Shi, Wenxin Li, Jie Li, Huaiwu Zhang
Summary: Zn1.8SiO3.8 ceramics were successfully prepared in this study by controlling the sintering temperature and composition, suppressing the formation of the second phase to obtain Zn2SiO4 ceramics without secondary phase. The ceramics exhibited excellent dielectric properties at 1300 degrees Celsius sintering, making them suitable for wireless communication technology.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Biochemistry & Molecular Biology
Porntip Siriya, Pairot Moontragoon, Pornjuk Srepusharawoot, Prasit Thongbai
Summary: The effects of sintering temperature and doping level concentration on the microstructures, dielectric response, and electrical properties of W6+-doped TiO2 were investigated. The study found that increasing the doping level concentration led to increased grain size and improved low-temperature dielectric response.
Article
Chemistry, Physical
Wenfeng Liu, Fanyi Kong, Yi Zhao, Yihang Jin, Jinghan Gao, Lei Zhang, Shengtao Li
Summary: BaTi0.8-xZr0.2MnxO3 (x = 0, 0.25%, 0.5%, 0.75%) ceramics were prepared and achieved enhanced tunability of 93.4% and reduced dielectric loss tangent of 0.005 at x = 0.5%. The mechanism of enhanced dielectric tunability was discussed, highlighting the contributions of intrinsic polarization and domain pinning effect. The tested samples exhibited favorable dielectric tunable performance with good temperature stability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Electrochemistry
Xue Li, Nansheng Xu, Lingling Zhang, Kevin Huang
ELECTROCHEMISTRY COMMUNICATIONS
(2011)
Article
Electrochemistry
Lingling Zhang, Xue Li, Siwei Wang, Kevin Gregory Romito, Kevin Huang
ELECTROCHEMISTRY COMMUNICATIONS
(2011)
Article
Electrochemistry
Siwei Wang, Lei Zhang, Lingling Zhang, Kyle Brinkman, Fanglin Chen
ELECTROCHIMICA ACTA
(2013)
Article
Chemistry, Multidisciplinary
Lingling Zhang, Nansheng Xu, Xue Li, Siwei Wang, Kevin Huang, William H. Harris, Wilson K. S. Chiu
ENERGY & ENVIRONMENTAL SCIENCE
(2012)
Article
Chemistry, Physical
Siwei Wang, Fei Zhao, Lingling Zhang, Kyle Brinkman, Fanglin Chen
JOURNAL OF ALLOYS AND COMPOUNDS
(2010)
Article
Physics, Applied
Lingling Zhang, Xusheng Wang, Wei Yang, Hong Liu, Xi Yao
JOURNAL OF APPLIED PHYSICS
(2008)
Article
Chemistry, Physical
Siwei Wang, Lei Zhang, Zhibin Yang, Lingling Zhang, Shumin Fang, Kyle Brinkman, Fanglin Chen
JOURNAL OF POWER SOURCES
(2012)
Correction
Chemistry, Physical
Siwei Wang, Lei Zhang, Zhibin Yang, Lingling Zhang, Shumin Fang, Kyle Brinkman, Fanglin Chen
JOURNAL OF POWER SOURCES
(2013)
Article
Materials Science, Ceramics
Lingling Zhang, Zhengping Mao, James D. Thomason, Siwei Wang, Kevin Huang
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2012)
Article
Chemistry, Physical
Siwei Wang, Fei Zhao, Lingling Zhang, Fanglin Chen
SOLID STATE IONICS
(2012)
Proceedings Paper
Electrochemistry
N. Xu, L. Zhang, H. Zhao, K. Huang
IONIC AND MIXED CONDUCTING CERAMICS 8
(2012)
Proceedings Paper
Electrochemistry
Xue Li, Nansheng Xu, Lingling Zhang, Kevin Huang
SOLID OXIDE FUEL CELLS 12 (SOFC XII)
(2011)
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)
