HPHT-Induced Transformations
HPHT-Induced Transformations
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HPHT 引发的转化
DOI：
10.1007/978-3-642-37490-6_4
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
A. Zaitsev
中科院分区：
文献类型：
--
作者：
I. Dobrinets;V. Vins;A. Zaitsev
本章讨论了金刚石在高温高压处理过程中杂质缺陷结构的特征转变。详细考虑了氮缺陷的聚集和解离过程。讨论了空位和镍在氮缺陷转变过程中的促进作用。这表明，氮缺陷的转变过程的理解是一个关键的识别HPHT处理的金刚石。详细讨论了不同类型天然金刚石在高温高压处理过程中的颜色变化。特别注意棕色钻石的变色和红色/粉红色的实现。结果表明，与氮有关的缺陷和空位聚集体的转变是决定HPHT处理金刚石颜色变化的主要过程。讨论了工业高温高压热处理过程中典型缺陷的转变。
In this chapter, characteristic transformations of impurity-defect structure of diamonds during HPHT treatment are discussed. Detailed consideration of the processes of nitrogen defect aggregation and dissociation is given. Stimulating action of vacancies and nickel in the nitrogen-defect transformation processes is discussed. It is shown that the understanding of the nitrogen defect transformation processes is a key to recognition of HPHT-treated diamonds. Color transformations of natural diamonds of different types during HPHT treatment are discussed in detail. Special attention is paid to discoloration of brown diamonds and achievement of red/pink colors. It is shown that the transformations of the nitrogen-related defects and vacancy aggregates are the major processes determining the color change in HPHT-treated diamonds. Typical defect transformations during commercial HPHT treatment are discussed.