| Title | 一种毫米多晶金刚石的制备方法 |
| Alternative Title | Preparation method of millimeter polycrystalline diamond
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| Author | |
| First Inventor | 马德江
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| Original applicant | 南方科技大学
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| First applicant | 南方科技大学
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| Address of First applicant | 518055 广东省深圳市南山区西丽学苑大道1088号
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| Current applicant | 南方科技大学
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| Address of Current applicant | 518055 广东省深圳市南山区西丽学苑大道1088号 (广东,深圳,南山区)
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| First Current Applicant | 南方科技大学
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| Address of First Current Applicant | 518055 广东省深圳市南山区西丽学苑大道1088号 (广东,深圳,南山区)
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| Application Number | CN202110025575.9
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| Application Date | 2021-01-08
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| Open (Notice) Number | CN112678817A
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| Date Available | 2021-04-20
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| Status of Patent | 实质审查
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| Legal Date | 2021-05-07
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| Subtype | 发明申请
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| SUSTech Authorship | First
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| Abstract | 本发明提供一种毫米多晶金刚石的制备方法，所述方法包括以石墨粉和/或微米晶金刚石为原料在13～16Gpa以及2000～2800℃下进行相转变烧结得到所述毫米多晶金刚石。所述制备方法通过高温高压制备技术，在毫米量级多晶金刚石内部产生高密度纳米缺陷效应，提高了多晶金刚石硬度与韧性，增加了金刚石应用领域。 |
| Other Abstract | The invention provides a preparation method of millimeter polycrystalline diamond. The method comprises the step of carrying out phase transformation sintering on graphite powder and/or micron-crystal diamond serving as a raw material at the temperature of 2,000-2,800 DEG C under the pressure of 13-16Gpa to obtain the millimeter polycrystalline diamond. According to the preparation method, a high-density nano defect effect is generated in the millimeter-scale polycrystalline diamond through a high-temperature and high-pressure preparation technology, so that the hardness and the toughness of the polycrystalline diamond are improved, and the application field of the diamond is enlarged. |
| IPC Classification Number | C01B32/26
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| INPADOC Legal Status | （ENTRY INTO FORCE OF REQUEST FOR SUBSTANTIVE EXAMINATION）[2021-05-07][CN]
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| INPADOC Patent Family Count | 1
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| Extended Patent Family Count | 1
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| Priority date | 2021-01-08
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| Patent Agent | 潘登
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| Agency | 北京品源专利代理有限公司
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| URL | [Source Record] |
| Data Source | PatSnap
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| Document Type | Patent |
| Identifier | http://kc.sustech.edu.cn/handle/2SGJ60CL/531614 |
| Department | Department of Physics 前沿与交叉科学研究院 |
| Recommended Citation GB/T 7714 |
马德江,韩云霞,王善民,等. 一种毫米多晶金刚石的制备方法.
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