Cold compaction and crushing of diamond powders during the sintering of polycrystalline diamond
To improve the density of polycrystalline diamond, a study was conducted to investigate the changes in diamond powder under different pressure conditions, including initial loading, cold isostatic pressing, and six-sided die pressing. The study focused on the particle size distribution, powder densi...
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Zhengzhou Research Institute for Abrasives & Grinding Co., Ltd.
2023-08-01
|
| Series: | Jin'gangshi yu moliao moju gongcheng |
| Subjects: | |
| Online Access: | http://www.jgszz.cn/article/doi/10.13394/j.cnki.jgszz.2022.0178 |
| _version_ | 1827769576789639168 |
|---|---|
| author | Xiwei CUI Yue QIN Rongqi MAO Jinglin HAO Sizhuang ZHAO Zhengde LIN Lifen DENG Nan JIANG Ping CUI |
| author_facet | Xiwei CUI Yue QIN Rongqi MAO Jinglin HAO Sizhuang ZHAO Zhengde LIN Lifen DENG Nan JIANG Ping CUI |
| author_sort | Xiwei CUI |
| collection | DOAJ |
| description | To improve the density of polycrystalline diamond, a study was conducted to investigate the changes in diamond powder under different pressure conditions, including initial loading, cold isostatic pressing, and six-sided die pressing. The study focused on the particle size distribution, powder density, and microstructural rearrangement before and after applying pressure to different diamond powder sizes and ratios. The process involved the initial random arrangement of particles, followed by the filling of fine particles into voids and rearrangement at 220 MPa during cold isostatic pressing. Subsequently, under ultra-high pressure, large particles (G20～30) were crushed and gradually filled the voids. The buffering effect of fine particles resulted in fewer fractures in the dual particle size formula (G2～4 and G20～30) compared to the single particle size formula (G20～30), which facilitated higher stacking density of the diamond powder. These findings provide valuable data support for optimizing the particle size and ratio design of diamond powders for the high-temperature high-pressure (HPHT) synthesis of high-performance polycrystalline diamond composite. |
| first_indexed | 2024-03-11T12:26:21Z |
| format | Article |
| id | doaj.art-14b1bce492374958ae84b334e41d11af |
| institution | Directory Open Access Journal |
| issn | 1006-852X |
| language | zho |
| last_indexed | 2024-03-11T12:26:21Z |
| publishDate | 2023-08-01 |
| publisher | Zhengzhou Research Institute for Abrasives & Grinding Co., Ltd. |
| record_format | Article |
| series | Jin'gangshi yu moliao moju gongcheng |
| spelling | doaj.art-14b1bce492374958ae84b334e41d11af2023-11-06T08:36:34ZzhoZhengzhou Research Institute for Abrasives & Grinding Co., Ltd.Jin'gangshi yu moliao moju gongcheng1006-852X2023-08-0143444044610.13394/j.cnki.jgszz.2022.01782022-0178Cold compaction and crushing of diamond powders during the sintering of polycrystalline diamondXiwei CUI0Yue QIN1Rongqi MAO2Jinglin HAO3Sizhuang ZHAO4Zhengde LIN5Lifen DENG6Nan JIANG7Ping CUI8School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, ChinaNingbo Institute of Materials Technology & Engineering, CAS, Ningbo 315201, Zhejiang, ChinaNingbo Institute of Materials Technology & Engineering, CAS, Ningbo 315201, Zhejiang, ChinaNingbo Institute of Materials Technology & Engineering, CAS, Ningbo 315201, Zhejiang, ChinaNingbo Institute of Materials Technology & Engineering, CAS, Ningbo 315201, Zhejiang, ChinaNingbo Institute of Materials Technology & Engineering, CAS, Ningbo 315201, Zhejiang, ChinaNingbo Institute of Materials Technology & Engineering, CAS, Ningbo 315201, Zhejiang, ChinaNingbo Institute of Materials Technology & Engineering, CAS, Ningbo 315201, Zhejiang, ChinaSchool of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, ChinaTo improve the density of polycrystalline diamond, a study was conducted to investigate the changes in diamond powder under different pressure conditions, including initial loading, cold isostatic pressing, and six-sided die pressing. The study focused on the particle size distribution, powder density, and microstructural rearrangement before and after applying pressure to different diamond powder sizes and ratios. The process involved the initial random arrangement of particles, followed by the filling of fine particles into voids and rearrangement at 220 MPa during cold isostatic pressing. Subsequently, under ultra-high pressure, large particles (G20～30) were crushed and gradually filled the voids. The buffering effect of fine particles resulted in fewer fractures in the dual particle size formula (G2～4 and G20～30) compared to the single particle size formula (G20～30), which facilitated higher stacking density of the diamond powder. These findings provide valuable data support for optimizing the particle size and ratio design of diamond powders for the high-temperature high-pressure (HPHT) synthesis of high-performance polycrystalline diamond composite.http://www.jgszz.cn/article/doi/10.13394/j.cnki.jgszz.2022.0178polycrystalline diamond (pcd)powder densityparticle size distributioncold pressingcrushing |
| spellingShingle | Xiwei CUI Yue QIN Rongqi MAO Jinglin HAO Sizhuang ZHAO Zhengde LIN Lifen DENG Nan JIANG Ping CUI Cold compaction and crushing of diamond powders during the sintering of polycrystalline diamond Jin'gangshi yu moliao moju gongcheng polycrystalline diamond (pcd) powder density particle size distribution cold pressing crushing |
| title | Cold compaction and crushing of diamond powders during the sintering of polycrystalline diamond |
| title_full | Cold compaction and crushing of diamond powders during the sintering of polycrystalline diamond |
| title_fullStr | Cold compaction and crushing of diamond powders during the sintering of polycrystalline diamond |
| title_full_unstemmed | Cold compaction and crushing of diamond powders during the sintering of polycrystalline diamond |
| title_short | Cold compaction and crushing of diamond powders during the sintering of polycrystalline diamond |
| title_sort | cold compaction and crushing of diamond powders during the sintering of polycrystalline diamond |
| topic | polycrystalline diamond (pcd) powder density particle size distribution cold pressing crushing |
| url | http://www.jgszz.cn/article/doi/10.13394/j.cnki.jgszz.2022.0178 |
| work_keys_str_mv | AT xiweicui coldcompactionandcrushingofdiamondpowdersduringthesinteringofpolycrystallinediamond AT yueqin coldcompactionandcrushingofdiamondpowdersduringthesinteringofpolycrystallinediamond AT rongqimao coldcompactionandcrushingofdiamondpowdersduringthesinteringofpolycrystallinediamond AT jinglinhao coldcompactionandcrushingofdiamondpowdersduringthesinteringofpolycrystallinediamond AT sizhuangzhao coldcompactionandcrushingofdiamondpowdersduringthesinteringofpolycrystallinediamond AT zhengdelin coldcompactionandcrushingofdiamondpowdersduringthesinteringofpolycrystallinediamond AT lifendeng coldcompactionandcrushingofdiamondpowdersduringthesinteringofpolycrystallinediamond AT nanjiang coldcompactionandcrushingofdiamondpowdersduringthesinteringofpolycrystallinediamond AT pingcui coldcompactionandcrushingofdiamondpowdersduringthesinteringofpolycrystallinediamond |