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碳化硼粉末制备方法的研究进展 秦明礼1,曲选辉1,李慧1,贾宝瑞1 (1.北京科技大学材料科学与工程学院,北京,100083) 摘要:碳化硼是一种非常重要的非金属材料,具有优良的力学,热学及电学性能,在军事,微电子学,核物理,空间技术等高科技领域具有广阔的应用前景.碳化硼陶瓷粉末的制备方法有碳热还原法,自蔓延高温合成法,元素直接合成法,化学气相沉积法和机械合金化法等.综述了这些方法的特点和研究进展,指出了制备碳化硼粉末的主要发展方向. 关键词:碳化硼; 陶瓷粉末; 制备方法; 研究进展; boron carbide; ceramic powder; preparation methods; research progress; [全文内容正在添加中] ......
; boron carbide; multi-scale composite; hot extrusion; mechanical milling 1 Introduction Aluminum-based nanocomposites have gained considerable interests due to their excellent properties (i.e., high... reinforced with particles of boron carbide (B4C) with good ductility and high strength have been conducted. Therefore, in this study, Al5083/B4C nanocomposite produced by mechanical milling method and hot......
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韧性和耐磨性能都得到大幅度提高,冲击韧性值ak由7.8 J/cm2增大到15.2 J/cm2,Fe-B合金的耐磨性能要好于高铬铸铁(Fe13Cr). REFERENCES [1] 符寒光, 胡开华. 高硼铸造耐磨合金研究的进展[J]. 现代铸铁, 2005(3): 32-37. FU Han-guang, HU Kai-hua. Progress of research on high boron wear resistant cast alloys[J]. Modern Cast Iron, 2005(3): 32-37. [2] 张艳玲. 耐磨高硼低碳铸造合金的研究[J]. 铸造, 2014, 63(12): 1273-1276. ZHANG Yan-ling. Study of wear resistance of high boron low carbon cast alloy[J......
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; 3. Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Daejon 305-701, Korea Received 19 November 2013; accepted 2 September 2014 Abstract: Cubic boron nitride particles coated by titanium nitride (TiN/cBN) as well as diamond particles coated by titanium carbide (TiC/diamond) were prepared by Ti molten salt deposition followed by heat-treatment......
: silicon carbide whisker; carbon fiber; carbonizing rice hall; induction 1 Introduction SiC whiskers have attracted extensive attention due to their excellent properties, such as high elastic modulus... which was brushed with boron nitride as isolator in advance. The reaction material filled in such a height as three-quarters height of graphite crucible. Carbon fiber was arranged on the top......
composites; boron carbide; joint; mechanical properties 1 Introduction Boron carbide reinforced aluminum matrix composites (AMCs) are more focused in nuclear industries because of their good chemical......
Research on Laser Cladded Nickel Based Nanometer Tungsten Carbide Composite Coating DAI Jian-qiang1,ZOU Chang-gu1,YAN Min-jie1,XI Wen-long1,ZHANG Guang-jun1,GE Da-fang1,WANG Hui-Ping1 (1.Shanghai... of nanometer WC/Co introduced into the coating plays an important role in the laser cladding processes. 关键词:Laser cladding; nanometer granulation; nickel based tungsten carbide coating......