Article
Materials Science, Multidisciplinary
Yunfeng Guo, Zexing Wang, Jiamao Li
Summary: In this study, novel LTCC materials with good microwave dielectric properties were developed by adding LiF sintering aid to LTCN ceramics. By adjusting the doping amount and sintering conditions of LiF, the microstructure and microwave dielectric properties of the ceramics were improved, making them potential materials for LTCC applications.
Article
Materials Science, Ceramics
Xiaoli Wei, Yinghan He, Xiuli Chen, Huanfu Zhou
Summary: A novel low-temperature sintered ACaPr(MoO4)(3) (A = Na, K) microwave dielectric material was prepared and its crystal structure, lattice vibration characteristics, and microwave dielectric properties were investigated. The material exhibited high density and excellent microwave dielectric properties, along with good chemical compatibility with Ag electrodes for application in LTCC technology.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Ping Zhang, Xin Tian, Xinyue Fan
Summary: In this study, a series of BaMg2-xZnxV2O8 ceramics were successfully synthesized by ionic substitution. The relationship between surface morphology and microwave properties was analyzed, and it was found that the substitution of Mg2+ with Zn2+ can improve densification, lower sintering temperature, and reduce dielectric loss significantly. The BaMg1.98Zn0.02V2O8 ceramic exhibited excellent microwave dielectric properties at the optimum sintering temperature, making it suitable for low-temperature co-firing technology.
CERAMICS INTERNATIONAL
(2022)
Article
Engineering, Environmental
Fuyu Li, Yuanxun Li, Sheng Li, Yang Luo, Yongcheng Lu, Tingting Tang, Yulong Liao, Jinping Zhang, Qiye Wen
Summary: To address the problem of 5G signal attenuation, a novel Zn0.97Co0.03Mo0.92W0.08O4 ceramic material with excellent microwave dielectric properties was developed. An all-ceramic array patch was designed and demonstrated for 5G signal enhancement, effectively avoiding matching co-fire issues and compensating for signal loss in walls. The device improved the intensity of the 5G signal from 0.02 to 1.62 through the focusing effect.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Hongrong Mei, Liangbin Zhang, Zhenggang Rao, Longlong Shu, Weiping Gong, Chunchun Li
Summary: In this study, a low-firing Na2CaTi2Ge3O12 garnet ceramic was fabricated, and the influence of sintering temperature on crystal structure and dielectric properties was investigated. The Na2CaTi2Ge3O12 ceramic sintered at 960°C exhibited excellent dielectric properties and good chemical compatibility with Ag and Cu electrodes, indicating its potential in low-temperature co-fired ceramic applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Electrical & Electronic
Tingting He, Mingsheng Ma, Haogeng Li, Faqiang Zhang, Feng Liu, Zhifu Liu, Xiaogan Li
Summary: This work introduces a wireless microfluidic sensor based on microwave reflection principle for liquid detection. The sensor consists of a slot antenna and a substrate integrated waveguide (SIW) resonator integrated with a microchannel using low temperature co-fired ceramic (LTCC) technology. The structure of the sensor was optimized through electromagnetic simulation. Experimental results demonstrate the liquid sensing performance of the sensor using ethanol aqueous solution and glucose aqueous solution.
SENSORS AND ACTUATORS A-PHYSICAL
(2022)
Article
Chemistry, Physical
Fuyu Li, Yuanxun Li, Yang Luo, Jinping Zhang, Yongcheng Lu, Rui Peng, Tingting Tang, Qiye Wen
Summary: This article reports a novel Zn0.96Cu0.oMoO4 ceramic and its application in microwave imaging devices. The substitution behavior and microwave dielectric properties of the ceramic are systematically studied. The ceramic exhibits excellent microwave dielectric properties when sintered at 825 degrees C. A 40 x 40 microstructure array for static microwave imaging is designed based on this ceramic substrate. This work opens up the application of microwave dielectric ceramics in the imaging field.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Ceramics
Xianqiang Chen, Binfeng Zhao, Naichao Chen, Jin Cheng, Mingzhao Dang, Feng Wang, Xinwei Xu, Hong Wang
Summary: Nano-sized CaF2 powders synthesized using a wet chemical method enable low-temperature sintering and superior microwave dielectric properties. The addition of LiF as a sintering aid further improves the microwave dielectric properties of CaF2 ceramics.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Ceramics
Zhe Xiong, Bin Tang, Xing Zhang, Chengtao Yang, Zixuan Fang, Shuren Zhang
Summary: The study found that LB glass as a sintering aid lowered the sintering temperature of BNTCN ceramics, and the doped LB glass had significant effects on the structure, grain size, and dielectric properties. Excellent microwave dielectric properties were achieved at 950 degrees Celsius, indicating that the BNTCN ceramic doped with 5 wt% LB glass is a promoting LTCC material.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2021)
Article
Chemistry, Physical
Yan-Bo Guo, Kang Du, Chang-Zhi Yin, Jia-Qing Yang, Wei Luo, Fei Wang, Wen-Zhong Lu, Wen Lei
Summary: Al2-xScxMo3O12 (x = 0 - 0.6) ceramics were synthesized by a solid-state reaction. The doping of Sc3+ can adjust the phase transition temperature and improve the microwave dielectric properties.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Electrical & Electronic
E. K. Suresh, T. S. Akhil Raman, A. Othman, B. Arun, J. Andrews, K. C. James Raju
Summary: Temperature stable (1-x)BaV2O6-xBaZnV(2)O(7) (x = 0.35-0.55) composite ceramics with excellent microwave dielectric properties were prepared by solid state ceramic route. The structural features, microstructure, and elemental analyses of the ceramics were studied using various techniques. The composite with x = 0.5 showed a relative density above 96% and a near zero temperature coefficient of resonant frequency, making it suitable for low temperature co-fired ceramic applications.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Physical
Zijian Yang, Ying Tang, Jie Li, Weishuang Fang, Jinyan Ma, Aihong Yang, Laijun Liu, Liang Fang
Summary: A low-permittivity and low-loss ceramic Li4GeO4 with olivine structure was fabricated via solid state reaction, showing excellent microwave properties when sintered at 720 degrees C. Its potential as a candidate material for LTCC application was demonstrated through analysis of microwave dielectric performances.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Ceramics
Houlin Hu, Yao Wang, Chaoyang Cai, Pengcheng Zhang, Xiaoqing Chen, Rui Xiang, Hao Li
Summary: A novel low-temperature fired BaMnV2O7 ceramic with monoclinic structure was fabricated and found to exhibit good chemical stability and desirable microwave dielectric performance at 850 degrees C. The increasing content of V4+ was shown to affect the quality factor based on X-ray photoelectron spectroscopy analysis.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Xiaoqing Chen, Hao Li, Pengcheng Zhang, Houlin Hu, Yu Tao, Gaosheng Li
Summary: A low-firing SrZnV2O7 ceramic was synthesized using a traditional solid-state sintering method, with detailed studies on phase formation, grain morphology, and dielectric performance. The results showed that SrZnV2O7 has potential applications in LTCC technology.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2021)
Article
Engineering, Electrical & Electronic
Qingqing Nie, Bo Dai, Yong Ren, Guixiang Liu, Fang Xu, Yong Zhao, Xing Liu, Xingwu Yuan, Yanhui Wu
Summary: MnZn/NiZn ferrite laminated co-fired ceramics were prepared successfully via spark plasma sintering (SPS) method. The interface between MnZn and NiZn ferrite layers in the co-fired ceramics showed no obvious diffusion due to the short sintering time and low temperature. The density and hardness of the co-fired samples increased with the increase of sintering temperature. MnZn/Bi2O3-modified NiZn ferrite laminated co-fired ceramic composites with high density, hardness, and good magnetic properties were prepared by SPS method.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
