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Tantalum oxide barrier in magnetic tunnel junctionsYU Guanghua, REN Tingting, JI Wei, TENG Jiao, and ZHU Fengwu摘 要:<正> Tantalum as an insulating... the oxidation states of Ta barrier. The experimental results show that the chemical state of tantalum is pure Ta5+ and the thickness of the oxide is 1.3 nm. The unoxidized Ta in the barrier may chemically reacted......
Tantalum oxide barrier in magnetic tunnel junctionsGuanghua Yu, Tingting Ren, Wei Ji, Jiao Teng, and Fengwu ZhuMaterials Science and Engineering School, University of Science and Technology Beijing, Beijing 100083, China摘 要:<正> Tantalum as an insulating barrier can take the place of Al in magnetic tunnel junctions (MTJs). Ta barriers in MTJs were......
Through-thickness texture gradient of tantalum sputtering targetChao Deng,Shi-Feng Liu,Xiao-Bo Hao,Jing-Li Ji,Qing Liu,Hai-Yang FanCollege of Materials Science and Engineering, Chongqing University摘... gradient of a rolled and subsequently annealed tantalum sputtering target was investigated. The results show that by carefully controlling the rolling process, shear-related components at the surface......
J. Cent. South Univ. (2021) 28: 72-88 DOI: https://doi.org/10.1007/s11771-021-4587-z Separation and purification of tantalum from plumbomicrolite of amazonite deposit in Kola Peninsula by acid...) was leached with the mixture of HF and H2SO4, HF and HNO3 acids, respectively. Optimal conditions ensuring high recovery of tantalum and niobium (up to 99%) into solution, and radionuclides into insoluble......
Effect of Doping on Microstructure and Technical Usage Property of Tantalum Wire万庆峰,TIAN Miao,CHEN Lin,ZHAO BingNingxia Oriental Tantalum Industry Co.,Ltd摘 要:Effect of different dopants and various dopants quantity at different annealing temperatures on microstructure of tantalum wire, bending of tantalum wire after sintering and bending after pressing......
Corrosion behavior of tantalum and its nitride in alkali solutionZHANG Deyuan , LIN Qin , FEI Qinyong , ZHAO Haomin , KANG Guangyu , and GENG Man1) R&D Department, National R&D Center..."><正> The corrosion behavior of tantalum and its nitrides in stirring NaOH solutions was researched by potentiostatic method, cyclic voltammetry and XPS. The results showed that the corrosion......
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Engineering, Guizhou University, Guiyang 550003, China) Abstract: Tantalum metal was prepared by solid oxygen-ion conducting membrane (SOM) technology from Ta2O5 directly in molten CaCl2. Through... the rate of deoxidization. Contrarily, small porosity results in the formation of compact out-layer of tantalum metal. While the Ta2O5 pellet pressed by 4 MPa and sintered at 1 150 ℃ for 2 h has appropriate......
J. Cent. South Univ. (2021) 28: 1111-1128 DOI: https://doi.org/10.1007/s11771-021-4684-z Effects of tantalum addition on microstructure and properties of titanium alloy fabricated by laser powder... of material science. In this study, the biomedical Ti-13Nb-13Zr powder was mixed with the tantalum particles (2 wt%-8 wt%) and fabricated by L-PBF. The microstructure consists of a β matrix......
Cell behaviors on surface of pure tantalum with nano-dimpled structureJun-Wei Ma1,Rui Zan1,Wen-Zhi Chen1,Jia-Hua Ni2,Xiao-Nong Zhang11. State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University2. California Nanosystems Institute, University of California,Los Angeles摘 要:Tantalum exhibits......