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爱与雨下: 金币+1 2012-07-26 20:58:20
yingzi1120: 金币+15, 翻译EPI+1, ★★★★★最佳答案, 非常感谢 2012-07-28 08:22:40

Interesting the idea is, there are still some problems unknown in this paper:
1. Though it has a certain effect on the thickness and uniformity to pretreat the sample with a, detrimental phase A inevitably appeared which didn't show in the untreated samples. As we know, crack is always existed between phase A and phase B due to the difference of their thermal expansion coefficient. Therefore, please explain where the specific advantage of this method is
2. It is analyzed in this paper that increasing the temperature or extending the time may contribute to the appearance of phase A. This statement seems to contradict with the reported conclusion that increasing the temperature or extending the time get the carbon atom diffuse sufficiently and then generate towards the more stable phase B. Why is it? Please give the explanation.

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