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Toughened (Ti_(0.2)Zr_(0.2)Hf_(0.2)Nb_(0.2)Ta_(0.2))B_(2)–SiC composites fabricated by one-step reactive sintering with a unique SiB_(6) additive被引量：1: 《Journal of Advanced Ceramics》2024年第1期86-100,共15页Wei Hao Xinzhe Lu Ling Li Tao Wang Guoliang Ren Huangyue Cai Xiaofeng Zhao Dongyun Wang Na Ni; supported by the National Natural Science Foundation of China(No.52072238);Key Research and Development Program of Zhejiang Province(No.2022C01139).; High-entropy diboride has been arousing considerable interest in recent years.However,the low toughness and damage tolerance limit its applications as ultra-high-temperature structural materials.Here we report that a ...; 关键词：high-entropy diboride silicon hexaboride boro/carbothermal reduction reactive sintering fracture toughness

Nanocrystalline high-entropy hexaboride ceramics enable remarkable performance as thermionic emission cathodes被引量：2: 《Fundamental Research》2023年第6期979-987,共9页Mengdong Ma Xinyu Yang Hong Meng Zhisheng Zhao Julong He Yanhui Chu; the National Key Research and Development Program of China(2021YFA0715801);the National Natural Science Foundation of China(51972116 and 52122204);the China Postdoctoral Science Foundation(2021M691051).; The development of high-entropy borides with combined structural and functional performance holds untold scientific and technological potential,yet relevant studies have been rarely reported.In this work,we report nan...; 关键词：High-entropy ceramics HEXABORIDES NANOCRYSTALLINE Mechanical properties Thermionic emission

Synthesis of substitutional hexaboride of lanthanum and cerium La_(1-x)Ce_(x)B_(6) via aluminothermic reduction: 《Journal of Rare Earths》2023年第11期1780-1788,I0005,共10页Yu Wang Xiao-Hui Yang Jian Cui Guo-Hua Zhang; financially supported by State Key Laboratory of Advanced Metallurgy,University of Science and Technology Beijing,China。; Rare-earth hexaborides(REB_(6))are vital raw materials for cathode materials and high temperature structural ceramics that are widely applied as high-frequency electron tubes and ceramics adaptive for extreme environm...; 关键词：HEXABORIDE Substitutional solid solution Aluminothermic reduction Rare earths

A new method of preparing NdB_(6)ultra-fine powders: 《Rare Metals》2022年第7期2363-2369,共7页Zhi-He Dou Ting-An Zhang Shi-Gang Fan Qiu-Yang Huang Jin-Liang Zhang Hong-Yu Xiao Nan Fu; financially supported by the National Natural Science Foundation of China (Nos. 51002025 and 51422403); Combustion synthesis method was used to prepare NdB_(6)ultra-fine powders with B_(2)O_(3),Nd_(2)O_(3)and Mg powders as the raw materials.The basic thermody-namic data of NdB_(6) were estimated.The standard forma-tion ...; 关键词：Hexaboride neodymium Ultra-fine powder Combustion synthesis Thermodynamics estimate

The Mechanical and Electronic Properties of Ternary Rare-Earth Hexaboride LaxNd8-xB6 (x = 0, 1, 7, 8) Materials: 《Modeling and Numerical Simulation of Material Science》2022年第1期1-11,共11页Cengiz Bozada; We have carried out density functional theory to study the lattice constants and electronic properties of LaB₆, NdB₆, Nd-doped LaB₆, and La-doped NdB₆. The lattice constant,...; 关键词：Rare-Earth Hexaboride Lattice Constant PDOS Charge Density

Preparation of CaB6 powder via calciothermic reduction of boron carbide被引量：1: 《International Journal of Minerals,Metallurgy and Materials》2020年第1期37-45,共9页Yu Wang Guo-hua Zhang Yue-dong Wu Xin-bo He; financially supported by the Fundamental Research Funds for the Central Universities of China (No. FRF-GF-17-B41); The method of calciothermic reduction of B4C was proposed for preparing CaB6.The phase transition and morphology evolution during the reaction were investigated in detail.The experimental results reveal that Ca first ...; 关键词：borides carbides particle size POWDERS calcium hexaboride

Synthesis of Al-SrB_6 composite via powder metallurgy processing: 《Transactions of Nonferrous Metals Society of China》2015年第3期677-682,共6页Yucel BIROL; The potential of powder metallurgy processing for the manufacture of Al?SrB6 composites was explored. Al4Sr particles fractured extensively during the ball milling of Al?15Sr/Al?4B powder mixtures. There was no intera...; 关键词：Al-SrB6 composites strontium hexaboride ball milling powder metallurgy processing

Comparison of Functionals for Metal Hexaboride Band Structure Calculations: 《Modeling and Numerical Simulation of Material Science》2014年第2期53-69,共17页Jose A. Alarco Peter C. Talbot Ian D. R. Mackinnon; Density functional calculations of the electronic band structure for superconducting and semiconducting metal hexaborides are compared using a consistent suite of assumptions and with emphasis on the physical implicat...; 关键词：HEXABORIDES Density Functional Theory BAND Structure SPIN Polarization SUPERCONDUCTIVITY

Effect of particle size on the polycrystalline CeB_6 cathode prepared by spark plasma sintering被引量：2: 《Journal of Rare Earths》2011年第6期580-584,共5页包黎红张久兴周身林; Project supported by the National Natural Science Foundation of China (50871002); The full densification polycrystalline cerium hexaboride （CeB6） cathode material was prepared by using the spark plasma sintering （SPS） method in an oxygen free system. The starting precursor nanopowders with an a...; 关键词：cerium hexaboride spark plasma sintering thermionic emission particle size rare earths

First-Principles Calculations of Elastic and Thermal Properties of Lanthanum Hexaboride被引量：2: 《Chinese Physics Letters》2009年第5期179-182,共4页徐国亮陈敬东夏要争刘雪峰刘玉芳张现周; Supported by the Basic Research Program of Education Bureau of Henan Province under Grant Nos 072300410130 and 2008A140006, and the National Natural Science Foundation of China under Grant No 10774039.; The plane-wave pseudopotentiai method using the generaiized gradient approximation within the framework of density functional theory is applied to anaylse the bulk modulus, thermal expansion coefficient and heat capac...

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