Article
Materials Science, Ceramics
Zi-Xuan He, Lu Lu, Jia-Min Wu, An-Nan Chen, Shuang Chen, Li-Jin Cheng, Shuai-Bin Hua, Chen-Hui Li, Chang-An Wang, Yu-Sheng Shi
Summary: ZTM microwave dielectric ceramics were prepared using digital light processing technology. The sintering temperature was found to have a significant impact on the phase composition, microstructure, and microwave dielectric properties of the ceramics. The ceramics sintered at 1450°C exhibited the best microwave dielectric properties.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Chemistry, Physical
S. J. Sondarva, D. Shah
Summary: In this study, the complex oxide Mn3TeO6 (MTO) compound was synthesized using solid-state reaction method at high processing temperature. The material was characterized in terms of structure, morphology, and electrical properties. The dielectric constant and conductivity of the compound were found to increase with temperature, indicating a correlated barrier hopping mechanism responsible for conduction.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Electrical & Electronic
Amit Sharma, Payal Sharma, Kanchan L. Singh
Summary: The study investigated the a.c. conductivity and dielectric properties of zirconia-based ceramic oxides prepared through various processes, with microwave-sintered samples exhibiting the highest electric conductivity at 800 K.
JOURNAL OF ELECTRONIC MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
B. Unal, M. A. Almessiere, A. V. Trukhanov, A. Baykal, Y. Slimani, M. V. Silibin, A. Ul-Hamid, A. Manikandan
Summary: This paper investigates the conductivity, dielectric, and microwave properties of SrNbxYxFe12-2xO19 hexaferrites synthesized by the citrate sol-gel method. The study evaluates key parameters related to the electrical and dielectric functions of the hexaferrites, and finds that the co-substitution ratio greatly affects the dielectric parameters but has a minimal influence on conductivity mechanism. Microwave properties and activation energy are also measured and calculated.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Physics, Condensed Matter
H. Shivashankar, A. M. Kevin, S. B. S. Manohar, S. M. Kulkarni
Summary: Polymer nanocomposites are being used in energy storage, sensors, and actuators with improved dielectric properties such as permittivity and conductivity. The incorporation of carbon black particles marginally enhances the dielectric permittivity while causing strong frequency dependence in AC conductivity. Empirical and experimental inspections are crucial for designing electronic devices based on polymers.
PHYSICA B-CONDENSED MATTER
(2021)
Article
Chemistry, Physical
Susmita Rabha, Pamu Dobbidi
Summary: Development of (1-x) MgTiO3 (MTO)-x SrTiO3 (STO) composite ceramics and tuning of temperature coefficient of resonant frequency (tau(f)) near to zero through solid state reaction method have been reported. The physical diffusion of MTO and STO crystals together to form a single crystal structure without any chemical interaction was observed. An increase in dielectric constant with STO content was obtained, while the temperature-dependent dielectric constant exhibited significant dispersion.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Ceramics
M. I. Piracha, G. Murtaza, Ghazanfar Nazir, Taharh Zelai, Nuriyah Mohammed Aloufi, M. Hassan, Thamraa Alshahrani, Hisham S. M. Abd-Rabboh
Summary: The study investigates the impact of PEEK on the properties of substituted SrM hexaferrite. Nanocomposites of SrM/PEEK in different ratios were prepared with the micro-emulsion method. Characterization techniques including XRD, SEM, FTIR, and VNA were carried out to analyze the composites. The results showed changes in structure, magnetic nature, and microwave properties of the materials due to the presence of PEEK and ferrite concentration in PEEK.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
S. S. Aplesnin, L. Udod, M. N. Sitnikov, O. B. Romanova
Summary: This study investigated the electrical characteristics of Bi2Sn2-xFexO7 (x = 0.1, 0.2) stannates, including electrical resistance, impedance, I-V characteristics, capacitance, and more, and established correlations between certain characteristics and phase structure transitions.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Applied
Salma Aman, Naseeb Ahmad, M. H. Alhossainy, Hind Albalawi, Manal Morsi, Tahani Al-Muhimeed, Abeer A. AlObaid
Summary: The ferrite series SrYbyFe2-yO4 (y = 0.00 to 0.10) were synthesized via the sol-gel procedure. The involvement of yttrium in the base composition resulted in changes in the structural, magnetic, and electrical properties of the system. X-ray diffraction analysis confirmed the cubic structure of all samples. The coercivity increased and the saturation and remanence magnetization values decreased with the involvement of Yb-ions. The permittivity values decreased and the impedance value increased with higher Yb-ion concentration.
JOURNAL OF RARE EARTHS
(2022)
Article
Multidisciplinary Sciences
S. H. Jabarov, S. I. Ibrahimova, F. Hajiyeva, E. M. Huseynov, Y. Aliyev
Summary: This work investigates the crystal structure, atomic dynamics, dielectric and electrical properties of the CuInZnSe3 compound. The crystal structure of the compound is found to be cubic with F-43m (216) symmetry. Raman spectroscopy reveals three Raman modes at frequencies of 57, 176, and 217 cm(-1). Dielectric properties, such as dielectric constant, dielectric loss angle, and electrical conductivity, are studied at different temperatures and frequencies.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2022)
Article
Engineering, Electrical & Electronic
Norah A. M. Alsaif, Z. Y. Khattari, Y. S. Rammah, M. S. Shams, R. A. Elsad
Summary: Bismuth borate glasses doped with La3+ and Eu3+ rare-earth ions were synthesized using traditional melt quenching process. The glasses exhibited amorphous nature and improved density and molar volume with increasing La3+ and Eu3+ concentrations. The optical bandgap and dielectric properties of the glasses were reduced with increased concentrations of La3+ and Eu3+ ions. The findings suggest potential applications of the synthesized glasses in optical fiber, solar cells, current sensors, and photonics.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Materials Science, Ceramics
Don Biswas, Prolay Sharma, N. S. Panwar
Summary: The study investigated the structural and phase transitions of NKN samples using dielectric measurements and high temperature X-ray diffraction. Results showed different phase transitions at various temperature ranges in the samples.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Mingxia Wang, Chaowei Zhong, Zhengyi Yang, Hongyu Yang, Lei Cao, Tianying Qin, Shuren Zhang
Summary: This paper investigates the thermal conduction, thermal expansion, and microwave dielectric properties of LixSi(0.50x to 0.65x)O(1.5x to 1.8x) (LS-based) ceramics. Adding 4 wt % of Al2O3 can significantly improve the thermal properties of the ceramics, making them suitable for the transition layer of circuit boards.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
E. A. Bikyashev, A. V. Popov, S. P. Kubrin, Premakumar Yanda, M. B. Mayorov, A. Trigub, V. A. Shuvaeva, A. Sundaresan, I. P. Raevski, N. V. Ter-Oganessian
Summary: Ceramic samples of barium ferrostannate BaFe1/2Sn1/2O3-delta were prepared using sol-gel and hydrothermal synthesis methods, and annealing in oxygen was performed to reduce the number of oxygen vacancies. The experimental results indicate the presence of antiferromagnetic ordering at relatively low temperatures, followed by further spin glass magnetic ordering at even lower temperatures. The giant dielectric response is believed to be caused by the relaxation of electrons trapped by oxygen vacancies. The comparison of Fe K-edge X-ray absorption spectra suggests significant differences between BaFe1/2Sn1/2O3-delta and the similar stoichiometric BaFe1/2Nb1/2O3 perovskite.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Ali H. Bashal, Tokeer Ahmad, Umar Farooq, Talat Habeeb, Hanaa AL-Refai, Mohammed Khalafalla
Summary: In this study, undoped and Zn and Co incorporated bentonite samples were successfully synthesized and characterized. The incorporation of metal ions was found to improve the dielectric properties of bentonite samples, especially at high temperatures.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Ceramics
A. G. Eremeev, S. V. Egorov, A. A. Sorokin, Yu. V. Bykov, K. I. Rybakov
CERAMICS INTERNATIONAL
(2018)
Article
Materials Science, Ceramics
Yury V. Bykov, Sergei V. Egorov, Anatolii G. Eremeev, Vladislav V. Kholoptsev, Ivan V. Plotnikov, Kirill I. Rybakov, Andrei A. Sorokin, Stanislav S. Balabanov, Alexander V. Belyaev
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2019)
Article
Engineering, Electrical & Electronic
S. V. Egorov, A. A. Sorokin, I. E. Ilyakov, B. V. Shishkin, E. A. Serov, V. V. Parshin, K. I. Rybakov, S. S. Balabanov, A. V. Belyaev
JOURNAL OF INFRARED MILLIMETER AND TERAHERTZ WAVES
(2019)
Article
Materials Science, Multidisciplinary
Kirill Rybakov, Sergei Egorov, Anatoly G. Eremeev, Vladislav V. Kholoptsev, Ivan Plotnikov, Andrei A. Sorokin
JOURNAL OF MATERIALS RESEARCH
(2019)
Article
Engineering, Electrical & Electronic
Yu. V. Bykov, S. V. Egorov, A. G. Eremeev, I. V. Plotnikov, K. I. Rybakov, A. A. Sorokin, V. V. Kholoptsev
RADIOPHYSICS AND QUANTUM ELECTRONICS
(2019)
Article
Nanoscience & Nanotechnology
S. Egorov, A. G. Eremeev, V. V. Kholoptsev, I. Plotnikov, K. Rybakov, A. A. Sorokin, Yu Bykov
SCRIPTA MATERIALIA
(2020)
Article
Materials Science, Ceramics
S. V. Egorov, A. G. Eremeev, V. V. Kholoptsev, I. V. Plotnikov, K. I. Rybakov, A. A. Sorokin, S. S. Balabanov, E. Ye. Rostokina, Yu. V. Bykov
Summary: The study found that the addition of carbon nanotubes during microwave sintering of alumina had no significant impact on the development of thermal instability, but could increase the final density.
CERAMICS INTERNATIONAL
(2021)
Article
Engineering, Electrical & Electronic
S. V. Egorov, A. G. Eremeev, I. Plotnikov, K. Rybakov, A. A. Sorokin, V. V. Kholoptsev, S. S. Balabanov, E. E. Rostokina, Yu. Bykov
Summary: The research demonstrates the feasibility of locally heating ceramic materials with focused beams of millimeter-wave radiation for manufacturing sintered products using additive methods. Experimental results of layer-by-layer sintering of ceramic hydroxiapatite samples heated by a gyrotron facility operating at a frequency of 24 GHz are presented.
RADIOPHYSICS AND QUANTUM ELECTRONICS
(2020)
Article
Materials Science, Ceramics
S. V. Egorov, A. G. Eremeev, V. V. Kholoptsev, I. V. Plotnikov, K. I. Rybakov, A. A. Sorokin, S. S. Balabanov, E. Ye. Rostokina, Yu. V. Bykov
Summary: Microwave sintering of ZnO + Bi2O3 + Sb2O3 varistor ceramics at a frequency of 24 GHz results in high density and constant heating rate, but also leads to thermal instability and shifting of densification curves towards lower temperatures.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Instruments & Instrumentation
S. V. Egorov, A. G. Eremeev, V. V. Kholoptsev, I. V. Plotnikov, K. I. Rybakov, A. A. Sorokin
Summary: This study presents a method for rapid microwave sintering of oxide ceramics using a 24 GHz gyrotron-based system. The system design, process control, and temperature measurement are discussed, and the relationship between microwave power and absorbed power in the sample is analyzed. The results demonstrate the development of controlled thermal instability with an increase in absorbed power, leading to a lower temperature of densification onset.
REVIEW OF SCIENTIFIC INSTRUMENTS
(2022)
Article
Materials Science, Multidisciplinary
S. V. Egorov, A. G. Eremeev, V. V. Kholoptsev, I. V. Plotnikov, K. I. Rybakov, A. A. Sorokin, S. S. Balabanov, E. Ye. Rostokina
Summary: The microwave sintering of BaTiO3 ceramics at 24 GHz was studied under rapid heating and using a SiC susceptor to reduce microwave power and achieve uniform temperature distribution. The recrystallization-induced microstructure transformation was observed. The possibility of controlling the microstructure and functional properties through the parameters of the microwave sintering regime was discussed.
Article
Materials Science, Ceramics
Sergei V. Egorov, Anatoly G. Eremeev, Vladislav V. Kholoptsev, Ivan V. Plotnikov, Kirill I. Rybakov, Andrei A. Sorokin, Elena Ye. Rostokina, Stanislav S. Balabanov
Summary: This study investigates the effects of dopant concentration and heating rate on the densification curves of ZnO samples. Results show that direct absorption of microwave radiation leads to a shift of the densification curves towards lower temperatures. Additionally, the analysis presents the impact of absorbed microwave power on the formation of grain-boundary phases that facilitate densification.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Multidisciplinary
S. S. Balabanov, S. V. Egorov, A. G. Eremeev, I. V. Plotnikov, E. Ye. Rostokina, K. I. Rybakov, A. A. Sorokin, V. V. Kholoptsev
Summary: The study presents a new additive method for manufacturing ceramic products using microwave sintering. By layer-by-layer sintering, ceramic samples with density close to theoretical value can be obtained.
INORGANIC MATERIALS
(2022)
Proceedings Paper
Materials Science, Multidisciplinary
S. V. Egorov, A. G. Eremeev, V. V. Kholoptsev, I. V. Plotnikov, K. I. Rybakov, A. A. Sorokin
MATERIALS TODAY-PROCEEDINGS
(2020)
