کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7989889 | 1515948 | 2018 | 25 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The study on the diamond growth and morphology from light elements (N-B-H)synergistic doping systems under HPHT
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: The study on the diamond growth and morphology from light elements (N-B-H)synergistic doping systems under HPHT The study on the diamond growth and morphology from light elements (N-B-H)synergistic doping systems under HPHT](/preview/png/7989889.png)
چکیده انگلیسی
The NH, NB and NBH co-doped diamond are synthesized at pressures of 5.0-6.0GPa and temperatures of 1300-1650 °C. The reaction pressure and temperatures for the transformation of graphite-to-diamond are significantly increased with the increasing of light elements content in the starting materials. The results of SEM reveal that the major surfaces defect of growth diamond in this study are steps and distort growth reliefs. The presence of re-entrant corner provided by the twinned structure play an important role in the formation of strip and slice diamond morphology.FTIR and XPS measurementsindicate that the special element composition of NH, NB and NBH co-dopeddiamond synthesized from this work will provide important information for the design of high performance diamond related materials. We also discussthe direct correlation between the formation mechanism of the natural diamond and thesynergistic doping effect of N, B, H element.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Refractory Metals and Hard Materials - Volume 70, January 2018, Pages 169-175
Journal: International Journal of Refractory Metals and Hard Materials - Volume 70, January 2018, Pages 169-175
نویسندگان
Shishuai Sun, Zhihui Xu, Wen Cui, Jiang Lv, Yaohui Geng, Hui Li, Xiaopeng Jia, Hong-an Ma,