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Effect of yttrium,calcium and zirconium on ignition-proof principle and mechanical properties of magnesium alloys樊建锋1,2,3,陈志远1,2,3,杨伟东1,2,3,方爽1,2,3,许并社1,2,31. Key laboratory of Interface Science... and elongation of 11%.Auger electron spectros-copy(AES) and X-ray diffraction(XRD) analysis revealed that the oxide film formed on the surface of Mg-3.5Y-0.8Ca alloy was mainly composed......
铝镇静钢夹杂物形态控制工艺研究姚同路1,刘浏1,李树庆2,吴波2,王宝明2,王永然2(1.北京市钢铁研究总院冶金工艺研究所2.天津钢铁集团有限公司,天津 300301)摘 要:通过热力学分析结合现场试验,采用金相分析,扫描电镜,能谱分析等方法,研究了铝镇静钢中氧化物夹杂的变性处理工艺.热力学计算结果表明,当钢中的[Al]s质量分数为0.025%,钙处理时控制钢中钙质量分数高于22×10-6,硫质量分数低于0.008%时,可较容易地将Al2O3夹杂变性为低熔点的C12A7.对天津钢厂生产石油套管钢的LF精炼工艺进......
Preparation and mechanism of calcium phosphate coatings on chemical modified carbon fibers by biomineralization HUANG Su-ping(黄苏萍), ZHOU Ke-chao(周科朝), LI Zhi-you(李志友) State Key Laboratory... and biomineralization processes were applied. The phase components, morphologies, and possible growth mechanism of calcium phosphate were studied by infrared spectroscopy(IR), X-ray diffractometry(XRD) and scanning......
J. Cent. South Univ. Technol. (2009) 16: 0753-0757 DOI: 10.1007/s11771-009-0125-0 Effect of organic depressant lignosulfonate calcium on separation of chalcopyrite from pyrite LIU Run-qing(刘润清... pyrite,the effect of organic depressant lignosulfonate calcium (LSC) on the flotation separation of chalcopyrite from pyrite was investigated by flotation tests. The depression mechanism was studied......
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J. Cent. South Univ. (2019) 26: 567-576 DOI: https://doi.org/10.1007/s11771-019-4028-4 Permeability modeling of self-healing due to calcium carbonate precipitation in cement-based materials... to calcium carbonate precipitation in cement-based materials with mineral additives was studied in this work. The parameters of calcium carbonate precipitation during self-healing were simulated......
,ZHANG Yan-guo. Review of vanadium extraction from stone coal by roasting technique with sodium chloride and calcium oxide[J]. Chinese Journal of Rare Metals, 2010, 34(2): 291-297. [9] FENG Man, ZHENG... which transforms calcium vanadate, the intermediate product during the previous vanadium-chromium co-extraction by vanadium slag sub-molten salt roasting process, to vanadium oxide using carbonization......
Zn-Ni double metal cyanide complex: A novel effective catalyst for copolymerization of propylene oxide and carbon dioxide CHEN Shang(陈 上)1, MA Ming-you(麻明友)1, XIAO Zhuo-bing(肖卓炳)1, LIU Jian...] and ZnCl2, and employed as catalyst for the copolymerization of carbon dioxide and propylene oxide (PO). The resulting copolymers were characterized by IR, 1HNMR. The results show that this catalyst......
Article ID: 1003-6326(2005)06-1420-05 Electrochemical properties of novel calcium stannate anode for lithium ion batteries HE Ze-qiang(何则强)1, 2, XIONG Li-zhi(熊利芝)1, XIAO Zhuo-bing(肖卓炳)1, MA... that the electrochemical process in CaSnO3 is similar to other Sn-based oxide materials, namely, an initial structural reduction with Sn-metal formation followed by reversible Li-Sn alloy formation. Both......
J. Cent. South Univ. (2016) 23: 3079-3084 DOI: 10.1007/s11771-016-3372-x Effects of MgO content and CaO/Al2O3 ratio on surface tension of calcium aluminate refining slag XU Ji-fang(许继芳)1, ZHANG Jie..., Shanghai University, Shanghai 200072, China Central South University Press and Springer-Verlag Berlin Heidelberg 2016 Abstract: Surface tension of calcium aluminate refining slag was measured by the Slide......
