利用同步辐射X射线对人造金刚石晶体缺陷进行了形貌学研究,实验采用了透射(劳埃)形貌术和反射形貌术两种方法.所得的X射线透射劳埃图上大部分斑点分别分布在四条主晶带上,经分析发现,该金刚石晶体主要的晶体缺陷为位错,并推导出晶体内部存在Frank不全位错.该晶体的反射形貌像中位错呈网状分布,说明其表层缺陷多于内部缺陷.此外,由形貌像分析发现该人造金刚石晶体的晶体缺陷明显少于天然金刚石.
参考文献
| [1] | Lang A R .Defects in Natural Diamonds:Recent Observations by New Methods[J].Journal of Crystal Growth,1977,42:625-631. |
| [2] | 陈美华,路凤香,郑建平.辽宁复县金刚石的阴极发光特征及其意义[J].地球科学-中国地质大学学报,1999(02):179-182. |
| [3] | 黄胜涛.固体X射线学[M].北京:高等教育出版社,1985 |
| [4] | G.M. Rylov;E.S. Yefimova;N.V. Sobolev;G.N. Kulipanov;V.I. Kondratyev;B.P. Tolochko;M.R. Sharafutdinov .Study of imperfect natural diamonds with the application of the X-ray synchrotron radiation (the "Laue-SR" method)[J].Nuclear Instruments and Methods in Physics Research, Section A. Accelerators, Spectrometers, Detectors and Associated Equipment,2001(1/2):182-188. |
| [5] | 许顺生;冯端.X射线衍衬貌像学[M].北京:科学出版社 |
| [6] | 杨顺华.晶体位错理论基础[M].北京:科学出版社,1998 |
| [7] | Pal'yanob YN.;Gusev VA.;Sokol AG.;Khokhryakov AF.;Rylov GM.;Chernov VA.;Kupriyanov IN.;Borzdov YM. .High-quality synthetic diamonds for SR application[J].Nuclear Instruments and Methods in Physics Research, Section A. Accelerators, Spectrometers, Detectors and Associated Equipment,2000(1/2):179-183. |
| [8] | Wood G S;Lang A R .Cathodoluminescence, Optical Absorption and X-ray Topographic Studies of Synthetic Diamonds[J].Journal of Crystal Growth,1975,28:215-226. |
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