Influence of grain size on high temperature oxidation behavior of Cr2AlC ceramics
Influence of grain size on high temperature oxidation behavior of Cr2AlC ceramics
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晶粒尺寸对Cr2AlC陶瓷高温氧化行为的影响
DOI：
10.1016/j.ceramint.2012.09.039
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发表时间：
2013-04
影响因子：
5.2
通讯作者：
Song, Guiming2
中科院分区：
文献类型：
--
作者：
Li, Shibo;Chen, Xiaodong1;Zhou, Yang;Song, Guiming2
采用细晶（2μm）和粗晶（60μm）试样，研究了晶粒尺寸对Cr2 AlC在1100°C和1200°C下不同时间氧化行为的影响。两种材料均形成了致密连续的Al 2 O3层，具有良好的抗氧化性能。细晶Cr2 AlC的氧化速率相对快于粗晶Cr2 AlC。对氧化皮的显微组织和相组成进行了表征。在1100°C和1200°C下氧化100 h后，粗晶和细晶Cr2 AlC表面均形成了致密连续的α-Al 2 O3氧化物层。在1100°C氧化2 h后，粗晶Cr2 AlC表面的α-Al 2 O3氧化层下有Cr 7 C3化合物生成，而细晶Cr2 AlC表面没有Cr 7 C3化合物生成。探讨了细晶和粗晶Cr2 AlC的氧化机理。
The influence of grain size on the oxidation behavior of Cr2AlC at 1100°C and 1200°C for different times was investigated using fine grained (2μm) and coarse grained (60μm) samples. The two materials show a good oxidation resistance owing to the formation of a dense and continuous Al2O3layer. The oxidation rate of the fine grained Cr2AlC is relatively faster than that of the coarse grained Cr2AlC. The microstructure and phase composition of scale was characterized. After oxidation at 1100°C and 1200°C for long times up to 100h, only a dense and continuous α-Al2O3oxide layer formed on both the fine grained and coarse grained Cr2AlC. However, after oxidation at 1100°C for a relatively short 2h period, a Cr7C3compound was detected beneath the α-Al2O3oxide layer on the coarse grained Cr2AlC, yet no Cr7C3was found in the fine grained Cr2AlC. The oxidation mechanism of the fine and the coarse grained Cr2AlC was discussed.
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Cr2AlC的合成及热稳定性
DOI：
10.1016/j.jeurceramsoc.2011.01.009
发表时间：
2011-07
期刊：
Journal of European Ceramic Society
影响因子：
--
作者：
李世波
通讯作者：
李世波
影响因子：
5.7
作者：
S. Li;Wenbo Yu;Hongxiang Zhai;G. Song;W. Sloof;S. Zwaag
通讯作者：
S. Li;Wenbo Yu;Hongxiang Zhai;G. Song;W. Sloof;S. Zwaag
影响因子：
9.4
作者：
M. Radovic;M. Barsoum;T. El-Raghy;S. Wiederhorn;W. Luecke
通讯作者：
M. Radovic;M. Barsoum;T. El-Raghy;S. Wiederhorn;W. Luecke
影响因子：
3.9
作者：
T. El-Raghy;M. Barsoum;A. Zavaliangos;S. Kalidindi
通讯作者：
T. El-Raghy;M. Barsoum;A. Zavaliangos;S. Kalidindi
影响因子：
5.7
作者：
G. Song;Shibo Li;Chuangxin Zhao;W. Sloof;S. Zwaag;Y. Pei;J. Hosson
通讯作者：
G. Song;Shibo Li;Chuangxin Zhao;W. Sloof;S. Zwaag;Y. Pei;J. Hosson