A new method for nucleation enhancement of diamond
A new method for nucleation enhancement of diamond
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DOI：
10.1016/s0925-9635(98)00383-5
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发表时间：
1999-03-01
影响因子：
4.1
通讯作者：
Hoffman, A
中科院分区：
文献类型：
--
作者：
Avigal, Y;Hoffman, A
足够密度的金刚石成核以允许连续膜的生长需要通过与金刚石颗粒的磨损或通过衬底的原位偏置（仅适用于导电材料的方法）的衬底预处理。即使使用上述方法，在不形成碳化物的材料（例如石英）上的成核也相当低。我们报告了一种新的方法，用于增加使用超声空化方法的磨损效果，通过使用浆料，这是由一个以上的组件。使用这种浆料，成核密度增加了几个数量级，这表明了在陶瓷材料上生长连续薄膜的潜力。提出了一个定性模型来解释这种形核增强现象的机理。(C)1999年Elsevier Science S.A. All rights reserved.
Diamond nucleation of sufficient density to allow for the growth of continuous films requires substrate pretreatment either by abrasion with diamond particles or by in-situ biasing of the substrate, a method which applies only to electrically conductive materials. Even with the above methods, nucleation on materials which do not form carbides such as quartz is quite low. We report on a new method for increasing the abrasion effect using the ultrasonic cavitation method, through the use of slurry, which is composed of more than one component. Using this slurry, the nucleation density increases by up to several orders of magnitude, which shows the potential to enable the growth of continuous films on ceramic materials. A qualitative model to explain the mechanism of this nucleation enhancement phenomenon is suggested. (C) 1999 Elsevier Science S.A. All rights reserved.