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国外刊物论文译文选登(1)

 发布时间:2011/10/13 阅读:41294

Deposition of ballas diamond and nano-crystalline diamond   半刚石和纳米晶金刚石的沉积
Abstract
Nano-crystalline materials are of high interest, because mechanical and physical properties of such materials are different from coarse grained types. In case of diamond the CVD ballas type is a nano-crystalline material. Other names for ballas are also common: e.g. ball-shaped diamond, cauliflower like, nano-crystalline diamond.
 

摘要:
纳米晶材料非常重要,因为此类材料的机械和物理性能不同于粗晶粒材料。拿金刚石来说,CVD半刚石型是一种纳米晶材料。半刚石的其它名称也常常见到,如球状金刚石、菜花形金刚石、纳米晶金刚石等等。

Ballas is a non-faceted, polycrystalline spherically grown diamond having a radial structure. Several morphological ballas structures have been observed by varying the deposition conditions, i.e. ballas having faceted areas, flat ballas, ballas with graphitic inclusions, etc. The Nano-crystalline diamond coatings were reported during the last years and grown by adding fullerens to the deposition gas or using Ar/CH4 mixtures with less H2 additions.   半刚石是一种具有径向结构的非多面、聚晶球状金刚石。通过改变沉积条件,发现了几种形貌的半刚石结构,即具有多面的半刚石、平整的半刚石和含石墨杂质的半 刚石等等。近几年来报道了纳米晶金刚石涂层,它们是通过往沉积气体中加入添加剂或使用含有少量H2的Ar/CH4混合物形成的。
From the present point of view the ballas morphologies can be described by various microstructures. The nano-crystalline diamond is one of these microstructures.   按照目前的观点,半刚石的形貌可通过多种显微结构加以描述。纳米晶金刚石是这些显微结构中的一种。

 

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