TANTALATES

作品数：8被引量：56H指数：4
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Revealing the low thermal conductivity of high-entropy rare-earth tantalates via multi-scale defect analysis被引量：3
《Journal of Advanced Ceramics》2023年第11期2087-2100,共14页Jun Wang Qianqian Jin Jianbo Song Di Zhang Bin Xu Zhiyi Ren Meng Wang Shixiao Yan Xiaoliang Sun Chi Liu Xiaoyu Chong Jing Feng 
supported by the National Key R&D Program of China(No.2022YFB3708600);the Materials Genome Engineering of Rare and Precious Metal of Yunnan Province(No.202102AB080019-1);Yunnan Fundamental Research Projects(Nos.202101AW070011,202101BE070001-015);Kunming University of Science and Technology Analysis and Testing Fund(No.2022P20211130017).
Thermal barrier coating(TBC)materials can improve energy conversion efficiency and reduce fossil fuel use.Herein,novel rare earth tantalates RETaO_(4),as promising candidates for TBCs,were reassembled into multi-compo...
关键词：thermal barrier coating(TBC) entropy strategy oxygen vacancy DISLOCATION ferroelastic domains intrinsic thermal conductivity 
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 perovskite RETa_(3)O_(9) ceramics for high-temperature environmental/thermal barrier coatings被引量：12
《Journal of Advanced Ceramics》2022年第4期556-569,共14页Lin CHEN Baihui LI Jun GUO Yuke ZHU Jing FENG 
Four high-entropy perovskite(HEP)RETa_(3)O_(9) samples were fabricated via a spark plasma sintering(SPS)method,and the corresponding thermophysical properties and underlying mechanisms were investigated for environmen...
关键词：high-entropy ceramics(HECs) TANTALATES thermal conductivity NANOINDENTATION fracture toughness 
Mechanical and thermal properties of RETaO4(RE=Yb,Lu,Sc)ceramics with monoclinic-prime phase被引量：9
《Journal of Materials Science & Technology》2020年第17期20-28,共9页Lin Chen Mingyu Hu Jun Guo Xiaoyu Chong Jing Feng 
under the support of the Natural Science Foundation of China(No.51762028,No.91960103);Materials Genome Engineering of Rare and Precious Metal of Yunnan Province(No.2018ZE019)。
As candidate thermal/environmental barrier coatings(T/EBCs),the structure characteristics and comprehensive properties of monoclinic-prime(m')RETaO4(RE=Yb,Lu,Sc)with excellent Al2O3/SiO2 chemical compatibility are stu...
关键词：CERAMICS Thermal/environmental barrier coatings Rare earth tantalates Mechanical property Thermal conductivity Chemical compatibility 
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 
Influence of HfO2 alloying effect on microstructure and thermal conductivity of HoTaO4 ceramics被引量：6
《Journal of Advanced Ceramics》2019年第4期537-544,共8页Lin CHEN Jing FENG 
support of the National Natural Science Foundation of China(No.51762028);Materials Genome Engineering of Rare and Precious Metal of Yunnan Province(No.2018ZE019).
HfO2 alloying effect has been applied to optimize thermal insulation performance of HoTaO4 ceramics.X-ray diffraction,Raman spectroscopy,and X-ray photoelectron spectroscopy are employed to decide the crystal structur...
关键词：THERMAL barrier coating(TBC) THERMAL conductivity rare earth TANTALATES MICROSTRUCTURE ALLOYING effect optical property 
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) 
High Dielectric Constant and Low-loss Dielectric Ceramics of Sr_5 LnTi_3Ta_7O_(30)(Ln=La,Nd,Sm and Y)
《Journal of Wuhan University of Technology(Materials Science)》2008年第2期218-221,共4页TU Wenmao CHEN Pu PENG Xiyang LIU Ting 
Polycrystalline Sr5LnTi3Ta7O30 （Ln=La, Nd, Sm and Y） ceramics were prepared as single-phase materials through conventional solid-state ceramics method. The structure was characterized by X-ray diffraction method and...
关键词：dielectric properties PARAELECTRIC tungsten bronze TANTALATES 
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