NIOBATES

作品数：12被引量：69H指数：3
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Dielectric response of ANb_(2)O_(6)(A = Zn, Co, Mn, Ni) columbite niobates: From microwave to terahertz
《Journal of Advanced Ceramics》2024年第8期1189-1197,共9页Weijia Luo Shun Wang Siyong Zheng Jining Li Menglong Wang Yongzheng Wen ingxia Li Ji Zhou 
This work was supported by the National Key R&D Program of China(No.2022YFB3806000);the Basic Science Center Project of National Natural Science Foundation of China(No.52388201);the National Natural ScienceFoundationof China(Nos.52202370 and 52172122);the China Postdoctoral Science Foundation(No.2023T160359);the Natural Science Foundation of Shandong Province(No.ZR2023QF040)。
In the upcoming 6-generation(6G)revolution,the achievement of low power consumption has become a key objective in research concerning terahertz devices.As an important component of passive devices,there are very few l...
关键词：columbite niobates terahertz response transition metal ions magnetic loss ceramic-based metamaterials 
Mechanical property enhancements and amorphous thermal transports of ordered weberite-type RE_(3)Nb/TaO_(7) high-entropy oxides被引量：3
《Journal of Advanced Ceramics》2023年第2期399-413,共15页Lin CHEN Keren LUO Baihui LI Mingyu HU Jing FENG 
funded by the National Natural Science Foundation of China (No.91960103);Yunnan Province Science Fund for Distinguished Young Scholars (No.2019FJ006);the Rare and Precious Metals Material Genetic Engineering Project of Yunnan Province (No.202102AB080019-1).
A_(3)BO_(7)-type(A=rare earth(RE),B=Nb or Ta)oxides have been studied as protective coating materials because of their low thermal conductivity;however,their hardness,toughness,and stiffness are insufficient,particula...
关键词：high-entropy oxides(HEOs) RE niobates/tantalates(RE_(3)Nb/TaO_(7)) stiffness(K) fracture toughness(KIC) thermal transports 
High entropy defective fluorite structured rare-earth niobates and tantalates for thermal barrier applications被引量：40
《Journal of Advanced Ceramics》2020年第3期303-311,共9页Zifan ZHAO Heng CHEN Huimin XIANG Fu-Zhi DAI Xiaohui WANG Wei XU Kuang SUN Zhjjian PENG Yanchun ZHOU 
This study was financially supported by the National Natural Science Foundation of China(Nos.51672064 and 51972089).
Rare-earth tantalates and niobates(REjTaO7 and REjNbO7)have been considered as promising candidate thermal barrier coating(TBC)materials in next generation gas-turbine engines due to their ultra-low thermal conductivi...
关键词：high entropy ceramics defective fluorite structure rare-earth niobates/tantalates thermal barrier coating material 
Thermal and Mechanical Properties Optimization of ABO4 Type EuNbO4 By the B-Site Substitution of Ta被引量：1
《Engineering》2020年第2期178-185,共8页Lin Chen Jing Feng 
under the support of the Natural Science Foundation of China(51762028 and 91960103);the Materials Genome Engineering of Rare and Precious Metal of Yunnan Province(2018ZE019).
Ferroelastic ABO4 type RETaO4 and RENbO4 ceramics(where RE stands for rare earth)are being investigated as promising thermal barrier coatings(TBCs),and the mechanical properties of RETaO4 have been found to be better ...
关键词：THERMAL barrier coatings RARE earth NIOBATES SUBSTITUTION THERMAL conductivity THERMAL expansion COEFFICIENTS Young’s MODULUS 
Microwave assisted hydrothermal synthesis of tin niobates nanosheets with high cycle stability as lithium-ion battery anodes被引量：3
《Chinese Chemical Letters》2019年第3期771-774,共4页Xingang Kong Jiarui Zhang Jianfeng Huang Jiayin Li Yi Qin Ting Zhao Qi Feng 
support of Project Supported by the Natural Science Foundation of China(Nos.51502163 and 51502165);Keypoint Research and Invention in Shaanxi Province of China(No.2017GY-186);the Scientific Research Foundation for the Returned Overseas Chinese Scholars,State Education Ministry
In this study, SnNb_2O_6 and Sn_2Nb_2O_7 nanosheets are synthetized via microwave assisted hydrothermal method, and innovatively employed as anode materials for lithium-ion battery. The SnNb_2O_6 electrode exhibits hi...
关键词：TIN NIOBATES NANOSHEETS Microwave assisted HYDROTHERMAL ANODE materials Lithium ion batteries Layered structure 
Electrochemical synthesis of Nb C-Sn composite powder in molten chloride被引量：1
《Transactions of Nonferrous Metals Society of China》2017年第10期2310-2316,共7页Hong-mei LI Qiu-shi SONG Qian XU Ying CHEN Jing-chun MENG 
Projects(51404057,50874026)supported by the National Natural Science Foundation of China;Project(N150204014)supported by Fundamental Research Funds for the Central Universities,China
NbC-Sn composite powder was successfully prepared from SnO2,Nb2O5and carbon by electrochemical reduction andcarbonization in CaCl2-NaCl molten salt at900°C.The reaction pathway was investigated by terminating electro...
关键词：NbC-Sn electrochemical reduction molten chloride calcium niobates acid leaching 
Influence of sintering temperature on the structure and piezoelectric properties of ZnO-modified (Li, Na, K)NbO_(3) lead-free ceramics被引量：1
《International Journal of Minerals,Metallurgy and Materials》2012年第9期843-848,共6页Hai-tao Li Bo-ping Zhang Wei-gang Yang Nan Ma 
supported by the Beijing Natural Science Foundation (No.2112028);the Research Fund for the Doctoral Pro-gram of Higher Education of China (No.20090006110010);the Doctoral Start-up Fund of Henan University of Science and Technology(No.09001542)
ZnO-modified (Li, Na, K)NbO3 lead-free ceramics with a nominal composition of Li0.06(Na0.535K0.48)0.94NbO3+0.7mol% ZnO (LNKN-ZT) was synthesized normally at 930-1000℃. The Zn ions incorporated into the A-site at a hi...
关键词：piezocemmics NIOBATES zinc oxide modification phase transitions PIEZOELECTRICITY SINTERING 
Dielectric Properties and the Phase Transition of Pure and Cerium Doped Calcium-Barium-Niobate
《World Journal of Condensed Matter Physics》2012年第2期80-84,共5页Alexander Niemer Rainer Pankrath Klaus Betzler Manfred Burianek Manfred Muehlberg 
The complex dielectric constant of pure and cerium doped calcium-barium-niobate (CBN) was studied at frequencies 20 Hz ≤ f ≤ 1 MHz in the temperature range 300 K ≤ T ≤ 650 K and compared with the results for the w...
关键词：77.80.-e FERROELECTRICITY and ANTIFERROELECTRICITY 77.80.Jk Relaxor FERROELECTRICS 77.84.Ek NIOBATES and TANTALATES 77.22.Ch Permittivity (Dielectric Function) 
Complex impedance properties of LiSr_(2)Nb_(5)O_(15) ceramic被引量：1
《Journal of Advanced Ceramics》2012年第3期221-226,共6页N.K.MOHANTY S.K.SATPATHY Banarji BEHERA P.NAYAK R.N.P.CHOUDHARY 
The authors(PN and BB)acknowledge the financial support through DRS-I under SAP of UGC for the development of research work in the School of Physics,SU.
The polycrystalline sample of LiSr2Nb5O15(LSN)was prepared by a high-temperature solid state reaction technique.The impedance parameters were studied using an impedance analyzer in a wide range of frequencies(102-106 ...
关键词：NIOBATES CONDUCTIVITY complex impedance MODULUS 
(K,Na)NbO_(3)-based lead-free piezoceramics:Phase transition,sintering and property enhancement被引量：19
《Journal of Advanced Ceramics》2012年第1期24-37,共14页Ke WANG Jing-Feng LI 
Tsinghua University Initiative Scientific Research Program and National Nature Science Foundation of China(Grant Nos.50921061 and 51028202).
Most widely used piezoelectric ceramics are based on Pb(Zr,Ti)O3(PZT)composition which has adverse environmental and health effects due to its high lead content.Environmental and safety concerns with respect to the ut...
关键词：electrical properties ferroelectric properties piezoelectric properties perovskites NIOBATES LEAD-FREE 
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