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luzhijian

金虫 (著名写手)

[交流] 【请教】关于审稿意见中XRD解释的一个小问题。

我是把Cu粉和Si3N4粉放在高能球磨机中进行球磨的,对图中的解释为

Figure 2 depicts the XRD patterns of as-milled Cu-25 wt% Si3N4 at different stages of milling. It was confirmed that only two phases of Cu and Si3N4 were present in the as-milled powders.

It was also found that with increasing the milling time, the diffraction peaks of Cu and Si3N4 became broader. This change revealed a reduced grain size and an elevated strain energy stored inside particles, because of the severe plastic deformation introduced during ball milling.

As the milling time increased, the diffraction peaks of the as-milled powders were rougher, suggesting that the deformation of the crystals became much stronger.  图中(a)3 h, (b) 7 h, (c) 9 h, and (d) 12 h。

审稿人提出 What is the meaning of "rougher" XRD peaks?

我该怎么回答,我本意为随着时间的延长,衍射峰越来越粗糙。用rough的比较级rougher来表示更粗糙,不知道合适不?有没跟合适的词来表达更粗糙的意思。

[ Last edited by luzhijian on 2008-5-30 at 09:09 ]
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magggggg

金虫 (小有名气)


luzhijian(金币+1,VIP+0):这条审稿意见还不知道怎么回答呢
If you want to describe the intensity of XRD decreased with milling time, and thererfore, the background became more obvious, you need to confirm the full scale (y-axis) were the same for all patterns.Otherwise, there are no meaning for the comparison.
Or you want to exlpain the FWHM of XRD peak broadenign with milling time.
8楼2008-06-01 21:44:45
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hjhw9513

木虫 (著名写手)


luzhijian(金币+1,VIP+0):我知道衍射峰会宽化,但峰形随着时间的推移,更加不规则和高低不平了。
是不是晶粒变小,半峰宽变大了?
2楼2008-05-29 17:03:23
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lulinsmann

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三无小小鸟


luzhijian(金币+1,VIP+0):峰形随着时间的推移,变得更加高低不平了。
别说英文了,中文都不太明白,啥叫衍射峰越来越“粗糙”?难道是指信噪比?
看你最强峰左侧的峰似乎变强了,直接说有些峰变强了不得了?
江湖背影
3楼2008-05-29 21:51:40
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baoyanl

金虫 (知名作家)


luzhijian(金币+1,VIP+0):烦请你看下我的帖子,我把对xrd的解释全贴上来了。
太不专业了,那有说衍射峰粗糙的啊!你也是做机械合金化的,但用粗糙来说,显得多外行啊。球磨时间延长,衍射峰宽化,强度变弱,表明晶格畸变,这才是标准的用语啊!
4楼2008-05-29 23:50:06
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