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单晶金刚石微粉

单晶金刚石微粉用途

用于金属、塑料、玻璃等材料表面生成金刚石膜。如半导体及半导体器件热沉电阻、电绝缘层。

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单晶金刚石微粉名称

[ CAS 号 ]:
7782-40-3

[ 中文名 ]:
单晶金刚石微粉

[ 英文名 ]:
Nanodiamond

[英文别名 ]:

EINECS 231-953-2
Diamond
MFCD00211867

单晶金刚石微粉物理化学性质

[ 分子式 ]:
CH₄

[ 分子量 ]:
16.04250

[ 精确质量 ]:
16.03130

[ LogP ]:
0.63610

[ 储存条件 ]:
室温，干燥

单晶金刚石微粉安全信息

[ 个人防护装备 ]:
Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter

[ 危险品运输编码 ]:
NONH for all modes of transport

单晶金刚石微粉制备

制备金刚石薄膜常用的方法是气相沉积法，该方法可分以下３种类型。

（１）热化学气相沉积（ＴＣＶＤ）法　在高温下使含碳气相组分发生热分解即形成金刚石薄膜。这一方法在早期的制备过程中是比较成功的方法，目前采用很多的热丝法（ＥＦＣＶＤ）以及对于沉积速率有着独特优越性的热化学焰法均属于此类。
（２）物理化学气相沉积法　用物理化学方法促进ＣＶＤ过程，例如等离子增强ＣＶＤ（ＰＥＣＶＤ或ＰＡＣＶＤ）、微波等离子体ＣＶＤ（ＭＷＣＶＤ）、射频等离子体ＣＶＤ（ＲＦＰＥＣＶＤ）和直流等离子体ＣＶＤ（ＤＣＰＥＣＶＤ）及电子增强ＣＶＤ（ＥＡＣＶＤ）等。
（３）物理气相沉积法　即用物理方法（蒸发、溅射、离子束等）直接从碳源获取碳原子或碳离子，将含碳气体转变为气态活性碳原子，定向沉积在物体表面并沉积生成一层致密、均匀、光滑的碳碳原子键结构的固态晶体膜。这类工艺的关键技术是利用高能离子在基材表面的微区内形成７５０００℃和压强１２×１０９Ｐａ的热尖峰，其持续时间为１０－２１ｓ，从而促进金刚石膜的形成。沉积工艺需在高能态、高真空条件下，严格控制电磁场能量，精确掌握含碳化合物的原材料配比和浓度，以及反应沉积速率。

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单晶金刚石微粉文献

Superficial roughness on composite surface, composite enamel and composite dentin junctions after different finishing and polishing procedures. Part I: roughness after treatments with tungsten carbide vs diamond burs.

Int. J. Esthet. Dent. 9(1) , 70-89, (2014)

The aim of this study is to investigate different instruments for finishing composite restorations, as well as examining different surfaces and interfaces of the same restoration. The null hypothesis ...

Qualitative and quantitative evaluation of enamel after various post-stripping polishing methods: an in vitro study.

Aust. Orthod. J. 28(2) , 240-4, (2012)

The purpose of this study was to evaluate the ultramorphology and surface roughness of permanent tooth enamel after various post-stripping polishing methods.Sixty extracted, permanent lower incisors w...

Electrochemical incineration of omeprazole in neutral aqueous medium using a platinum or boron-doped diamond anode: degradation kinetics and oxidation products.

Water Res. 47(5) , 1803-15, (2013)

The electrochemical incineration of omeprazole, a widely prescribed gastrointestinal drug which is detected in natural waters, has been studied in a phosphate buffer of pH 7.0 by anodic oxidation with...

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