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of EIS, are enhanced with the increasing of Pd content in the alloys, which are consistent with the results of corrosion rates obtained from anodic polarization measurements. Key words: MgNi-based... capacity due to the drastic oxidation of magnesium in KOH solution. Therefore, the settlement of this corrosion problem is very important for the application of MgNi-based electrode alloys[3]. Up to now......
: hydrogen desorption kinetics; potentiostatic discharge; three-dimensional diffusion; activation energy; hydrogen storage alloys 1 Introduction Mg-based alloy is a kind of promising hydrogen storage... for Mg to prolong the cycle life of electrode alloys[4-7]. It was found that the additional Pd in the MgNi alloy effectively improved its corrosion inhibition performances and cyclic stability[8,9......
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CZSiGe单晶的 FTIR光谱研究 牛新环1,张维连1,蒋中伟1,张书玉1 (1.河北工业大学,半导体材料研究所,天津,300130) 摘要:利用傅立叶红外光谱( FTIR)测试技术,研究了掺锗 CZSi的低温和常温红外吸收光谱.发现 高浓度 Ge掺入 CZSi在红外吸收光谱中引起的波数为 1118 cm- 1, 710 cm- 1和 800 cm- 1的新红外 吸收峰,这些峰的吸收强度随 Ge含量的增加也逐渐增强;碳的红外吸收峰( 607 cm- 1)则向低频方 向移动.同时利用 X射线单晶衍射技术( SCXRD)测定了 SiGe( Ge: 10wt%)单晶的晶格常数,结果 表明晶格......
dilatometry(DIL). The variation of the non-monotonic effects of tungsten content and vacuum conditions on the glass forming ability(GFA) of Fe-based alloys can be drawn in a schematic diagram... dilatometric measurements. Under low and high vacuum conditions, the viscosity and microhardness are improved and the fragility of the Fe-based alloys are decreased by adding tungsten. Key words: glass forming......
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Growth restriction effects during solidification of aluminium alloys CHEN Zhong-wei(陈忠伟), HE Zhi(何 志), JIE Wan-qi(介万奇) State Key Laboratory of Solidification Processing... be quantified by the growth-restriction parameter Q, and Q possesses the better correlation with the grain size. Based on the constitutional undercooling generated by the growth of an adjacent grain during......
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Microstructure and mechanical properties of ZA62 based magnesium alloys with calcium addition WAN Xiao-feng(万晓峰)1, SUN Yang-shan(孙扬善)1, 2, XUE Feng(薛 烽)1, 2, BAI Jing(白 晶)1, 2, TAO Wei-jian(陶卫建... temperatures due to the thermal stability of Ca-containing phases. At elevated temperatures, the creep resistance of ZA62 based alloys containing calcium is significantly higher than that of AZ91 which......