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of the composites are well improved owing to the dispersion toughening of alumina grains and phase transformation toughening of zirconia grains. Key words:inorganic non-metallic materials; zirconia......
电渣重熔过程中夹杂物的控制耿鑫1,姜周华1,刘福斌1,梁连科1(1.辽宁省沈阳市东北大学材料与冶金学院)摘 要:电渣重熔过程中非金属夹杂物的去除主要发生在自耗电极端头熔滴形成期以及熔滴滴落穿过熔渣层阶段.电渣重熔过程中原生夹杂物去除的同时将产生新的夹杂物,为了有效地控制电渣锭中的夹杂物,使用复合脱氧剂对自耗电极进行终脱氧,采用合理的重熔速度,熔渣的化学组成和供电制度,以及严格控制电渣炉内氧位.关键词:电渣重熔; 夹杂物; 动力学; 比接触面积......
Structural transition of Ni-Mn-Ga ferromagnetic shape memory alloy particles prepared by ball milling CHEN Feng(陈 枫), TIAN Bing(田 兵), LI Li(李 莉), ZHENG Yu-feng(郑玉峰) Center... transformation of Ni49.8Mn28.5Ga21.7 alloy particles prepared by planetary ball milling (PBM) and vibration ball milling (VBM) were investigated by SEM, XRD and DSC. The results show that the particles......
Loose Sand Particles Cemented by Chem/Bio-BaHPO4 Powder於孝牛1,QIAN Chunxiang21. College of Civil Engineering and Architecture, Wenzhou University2. School of Materials Science and Engineering... results indicated that loose sand particles can be well cemented by the bio-BaHPO4powder into a bio-sandstone with a certain mechanical properties,and the average compressive strength of the bio......
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Isothermal coarsening of primary particles during rheocasting GUO Hong-min(郭洪民)1, LUO Xue-quan(罗学泉)1, ZHANG Ai-sheng(章爱生)1, YANG Xiang-jie(杨湘杰)2 1. School of Materials Science and Engineering... behavior of primary solid particles in A356 aluminum alloy semi-solid slurry produced by angular oscillation (AO) technique was investigated. The comparison between the calculation and experimental......
Ion imprinted polymer particles of neodymium: synthesis, characterization and selective recognition GUO Jiajia1,SU Qingde1,CAI Jibao1 (1.Department of Chemistry, University of Science and Technology of China, Hefei 230026, China) Abstract:Neodymium ion imprinted polymer (Nd3+-IIP) particles for selective solid-phase extraction of Nd3+ were prepared and determined with inductively coupled......
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110015,China摘 要:<正> In present work.the ultrafine manganese particles were prepared by gas evaporation method.Thestructure,size distribution,growth morphology and surface oxidation for the particles were investi-gated by using X-ray diffraction and electron microscopy.The results indicated that three types ofthe particles,with the structure of α-Mn......