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High-performance α-Fe/Pr2Fe14B-type nanocomposite magnets fabricated by direct melt spinning杨白1,张蕾1,沈保根2,赵同云2,于荣海11. School of Materials Science and Engineering,Beihang University2. State Key...-Fe/Pr2Fe14B-type nanocomposite magnets based on the compositions of Pr8Fe86B6 microalloyed with Co, Nb and C were fabricated by direct melt spinning. The coercivity was greatly improved from 5.5 kOe......
High-performance α-Fe/Pr2Fe14B-type nanocomposite magnets fabricated by direct melt spinning杨白1,张蕾1,沈保根2,赵同云2,于荣海11. School of Materials Science and Engineering,Beihang University2. State Key...-Fe/Pr2Fe14B-type nanocomposite magnets based on the compositions of Pr8Fe86B6 microalloyed with Co, Nb and C were fabricated by direct melt spinning. The coercivity was greatly improved from 5.5 kOe......
热分解重量法测定纯氯化镁溶液中氯化镁含量的研究何配华1,尹霞1,张宁1,朱建1(1.湖南省长沙市湖南大学化学化工学院)摘 要:针对用氯化银重量法测定MgCl2溶液中MgCl2含量存在的操作步骤较多,使用试剂较贵等不足,研究了一种新的简单,精确测定纯MgCl2溶液中MgCl2含量的方法,即热分解重量法.将精确称重后的纯MgCl2溶液在低温下蒸发脱除部分水分,再在550~600℃温度下热分解6 h,使MgCl2水合物转变为MgO,置于干燥器中冷却1.5~2 h后称重,即可换算得MgCl2含量.本法较之氯化银重量法,......
A Method of Preparation of Ag/AgCl Chloride Selective Electrode陶德彪,蒋林华,JIN MingCollege of Mechanics and Materials, Hohai University摘 要:We put forward a method of rapid preparation of chloride selective electrode(Ag/AgCl electrode) by dipping silver wire into sodium hypochlorite solution. The electrodes were prepared through different immersion time......
Influence of melt superheating on microstructures of Mg-3.5Si-1Al alloys ZHA Min(查 敏), WANG Hui-yuan(王慧远), LIU Bo(刘 波), ZHAO Bing(赵 兵), LIANG Min-li(梁敏莉), LI Dong(李 栋), JIANG Qi-chuan(姜启川) Key...: The influence of melt superheating treatment on the microstructures of Mg-3.5Si-1Al alloys unmodified and modified with 0.2% Sr-Sb (mass fraction) was investigated. The results show that when the melt......
Non-steady State Chloride Migration and Binding in Cracked Self-compacting Concrete马保国1,穆松1,De Schutter Geert21. School of Materials Science and Engineering,Wuhan University of Technology2. Magnel...(macro level) on chloride transport and binding of cracked concrete under a non-steady state migration test.The results show that migration coefficient of cracked concrete increases with increasing crack......
: A computational fluid dynamics (CFD) simulation was carried out with CFX4.3 to investigate the melt flow and temperature distributions in the settler of a flash furnace. Sixteen cases of one slag tap hole adopted with one matte tap hole (1-to-1) and one slag tap hole adopted with two matte tap holes (1-to-2) operation modes were modelled. The simulation results show that the melt flows are similar in both two......
Dependence of viscosity of Cu9In4 intermetallics melt on thermal historyCHENG Sujuan, WANG Zhonghua, BIAN Xiufang, and SUI Xuepu Industry Engineering Department, Dongying Vocational College, Dongying..., China摘 要:<正>The temperature dependence of the dynamic viscosity of Cu9In4 intermetallics melt has been investigated in five kinds of different heating......
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Effect of melt convection on primary dendrite arm spacing in directionally solidified Pb-26%Bi hypo-peritectic alloys HU Xiao-wu, LI Shuang-ming, GAO Si-feng, LIU Lin, FU Heng-zhi State Key... phase in directionally solidified Pb-26%Bi (mass fraction) hypo-peritectic alloys was measured by considering the effect of melt convection in cylindrical samples with different diameters......
