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kele135

木虫 (正式写手)

[求助] coagulation 和 condensation

最近看文献,发现这样一句话:It is known that nanocrystal growth by coagulation leads to very broad size distributions, whereas growth by condensation
leads to narrow size distributions, which further implies the Ostwald ripening process.  弄不清coagulation 和 condensation的区别,希望知道的大侠用中文解释一下!。。。多谢
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jiangcj09

铁杆木虫 (正式写手)

【答案】应助回帖

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wandaohzl(金币+1): 鼓励交流 2011-05-08 12:52:30
引用回帖:
Originally posted by jiangcj09 at 2011-05-08 10:38:05:
词典上
condensation相关的意思有:
a: a chemical reaction involving union between molecules often with elimination of a simple molecule (as water) to form a new more complex compound of often grea ...

The sol-gel method is based on inorganic polymerization reactions. The sol-gel process includes four steps: hydrolysis, polycondensation, drying, and
thermal decomposition.
(Chemical Reviews, 2005, Vol. 105, No. 4 1034页)

也有第二种意思的,像:
Physical Vapor Deposition (PVD). PVD involves [color=]condensation from the vapor phase. The PVD process is composed of three main steps: (a) generating a vapor phase by evaporation or sublimation of the material, (b) transporting the material from the source to the substrate, and (c) formation of the particle and/or film by nucleation and growth.
(Chemical Reviews, 2005, Vol. 105, No. 4 1039页)
7楼2011-05-08 10:42:03
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jiangcj09

铁杆木虫 (正式写手)

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wandaohzl(金币+1): 鼓励交流 2011-05-08 12:51:52
coagulation应该指颗粒物的合并,而condensation涉及到组成纳米颗粒的物质粒子(离子、分子等)溶解/沉积的过程。
查查关于Ostwald熟化(小颗粒变小、大颗粒变大)的资料就能理解了。
2楼2011-05-07 19:09:08
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kele135

木虫 (正式写手)

引用回帖:
Originally posted by jiangcj09 at 2011-05-07 19:09:08:
coagulation应该指颗粒物的合并,而condensation涉及到组成纳米颗粒的物质粒子(离子、分子等)溶解/沉积的过程。
查查关于Ostwald熟化(小颗粒变小、大颗粒变大)的资料就能理解了。

还是不是太懂啊,能用通俗的语言说一下嘛?如果翻译成中文的话,如何翻译才能与科技术语相符?
风含情,水含笑,我最想谁你知道!
3楼2011-05-07 22:17:53
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ckm840529

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I love science!

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wandaohzl(金币+1): 鼓励交流 2011-05-08 12:52:01
coagulation: 凝聚
condensation: 浓缩
行胜于言!科学求真,社会求善,艺术求美!
4楼2011-05-08 00:08:44
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