Continuous and discontinuous grain-boundary wetting in ZnxAl1-x
Continuous and discontinuous grain-boundary wetting in ZnxAl1-x
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DOI：
10.1103/physrevb.78.054202
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发表时间：
2008-08
影响因子：
3.7
通讯作者：
B. Straumal;A. Gornakova;O. Kogtenkova;S. Protasova;V. Sursaeva;B. Baretzky
中科院分区：
文献类型：
--
作者：
B. Straumal;A. Gornakova;O. Kogtenkova;S. Protasova;V. Sursaeva;B. Baretzky
使用扫描电子显微镜和光学显微镜测量i特别生长的倾斜晶界GB在Al和富Zn熔体之间的接触角T的温度依赖性; ii倾斜GB在Zn和富Al熔体;和iii倾斜GB在Zn和Al基固溶体Al。在所有情况下随着T的增加而减小，并且在情况i和ii中在一定温度Tw下达到零完全润湿。铝晶界的润湿转变是不连续的一级：T依赖性是凸的，d /dT具有一个
Temperature dependences of the contact angle T between i specially grown tilt grain boundaries GBs in Al and the Zn-rich melt; ii tilt GBs in Zn and the Al-rich melt; and iii tilt GBs in Zn and the Al-based solid solution Al were measured using scanning electron microscopy and light microscopy. decreases with increasing T in all cases and reaches zero complete wetting at a certain temperature Tw in cases i and ii. The wetting transformation for Al GBs is discontinuous first order: T dependence is convex, d /dT has a