人工晶体学报
人工晶體學報
인공정체학보
2001年
1期
105-108
,共4页
尹龙卫%李木森%陈芝%孙东升%董秀梅%郑培智
尹龍衛%李木森%陳芝%孫東升%董秀梅%鄭培智
윤룡위%리목삼%진지%손동승%동수매%정배지
人造金刚石%棱柱位错%层错%位错网络
人造金剛石%稜柱位錯%層錯%位錯網絡
인조금강석%릉주위착%층착%위착망락
本文首次采用透射电子显微术系统地研究了由FeNi触媒制备的金刚石单晶的微观结构，分析了人造金刚石中存在的晶体缺陷，探讨了这些晶体缺陷形成的原因。研究发现金刚石中存在层错、棱柱位错、位错列和位错网络等晶体缺陷。研究结果表明，金刚石中的晶体缺陷与金刚石的高温高压合成过程密不可分，主要起源于金刚石中大量过饱和的空位和微观杂质所引起的内应力。
本文首次採用透射電子顯微術繫統地研究瞭由FeNi觸媒製備的金剛石單晶的微觀結構，分析瞭人造金剛石中存在的晶體缺陷，探討瞭這些晶體缺陷形成的原因。研究髮現金剛石中存在層錯、稜柱位錯、位錯列和位錯網絡等晶體缺陷。研究結果錶明，金剛石中的晶體缺陷與金剛石的高溫高壓閤成過程密不可分，主要起源于金剛石中大量過飽和的空位和微觀雜質所引起的內應力。
본문수차채용투사전자현미술계통지연구료유FeNi촉매제비적금강석단정적미관결구，분석료인조금강석중존재적정체결함，탐토료저사정체결함형성적원인。연구발현금강석중존재층착、릉주위착、위착렬화위착망락등정체결함。연구결과표명，금강석중적정체결함여금강석적고온고압합성과정밀불가분，주요기원우금강석중대량과포화적공위화미관잡질소인기적내응력。
Transmisson electron microscopy (TEM) has been used to investigate the microstructures and analyze the defects in synthetic diamond prepared under high temperature-high pressure in the presence of FeNi alloy catalyst.It was found that there exist prismatic dislocations,stacking faults,array of dislocations and dislocation network.The formation mechanism of these defects was studied.Results show that defects in the diamond were closely related to high temperature-high pressure synthesis process and originated mainly from excess amount of saturated vacancies and internal stress generated by micro-inclusions.
