Comparative Study on Cold Compaction Behavior of TiH2 Powder and HDH-Ti Powder
The compaction mechanism of titanium hydride powder is an important issue because it has a direct impact on density and strength of green compacts and ultimately on the physical and mechanical properties of a final sintered products. In this paper, the characteristics and compaction behavior of tita...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/9999541 |
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| author | Shucheng Dong Baicheng Wang Yuchao Song Guangyu Ma Huiyan Xu Dmytro Savvakin Orest Ivasishin |
| author_facet | Shucheng Dong Baicheng Wang Yuchao Song Guangyu Ma Huiyan Xu Dmytro Savvakin Orest Ivasishin |
| author_sort | Shucheng Dong |
| collection | DOAJ |
| description | The compaction mechanism of titanium hydride powder is an important issue because it has a direct impact on density and strength of green compacts and ultimately on the physical and mechanical properties of a final sintered products. In this paper, the characteristics and compaction behavior of titanium hydride and hydrogenation-dehydrogenation titanium powders are comparatively studied and analyzed for better understanding of compaction mechanism of brittle low-strength titanium hydride. The results indicate that the particles of titanium hydride powder are easily crushed under compaction loading at relatively low pressure well below compression strength of bulk titanium hydride, the degree of particle crushed increases with the increase of pressure. The compaction behavior of titanium hydride powder mainly includes the rearrangement and crushing of particles in the early compaction stage, minor plastic deformation, if any, and further rearrangement of particle fragments with filling the pores in the later stage. Such compaction behavior provides relative density of green hydride compacts higher than that for titanium powder of the same size. The relatively coarse titanium hydride powder with wide particle size distribution is easier to fill the pores providing highest green density. |
| format | Article |
| id | doaj-art-2a9bb6b2beb34de581d4ed04d8c3438e |
| institution | OA Journals |
| issn | 1687-8442 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-2a9bb6b2beb34de581d4ed04d8c3438e2025-08-20T02:04:09ZengWileyAdvances in Materials Science and Engineering1687-84422021-01-01202110.1155/2021/99995419999541Comparative Study on Cold Compaction Behavior of TiH2 Powder and HDH-Ti PowderShucheng Dong0Baicheng Wang1Yuchao Song2Guangyu Ma3Huiyan Xu4Dmytro Savvakin5Orest Ivasishin6College of Materials Science and EngineeringCollege of Materials Science and EngineeringCollege of Materials Science and EngineeringCollege of Materials Science and EngineeringCollege of Materials Science and EngineeringCollege of Materials Science and EngineeringCollege of Materials Science and EngineeringThe compaction mechanism of titanium hydride powder is an important issue because it has a direct impact on density and strength of green compacts and ultimately on the physical and mechanical properties of a final sintered products. In this paper, the characteristics and compaction behavior of titanium hydride and hydrogenation-dehydrogenation titanium powders are comparatively studied and analyzed for better understanding of compaction mechanism of brittle low-strength titanium hydride. The results indicate that the particles of titanium hydride powder are easily crushed under compaction loading at relatively low pressure well below compression strength of bulk titanium hydride, the degree of particle crushed increases with the increase of pressure. The compaction behavior of titanium hydride powder mainly includes the rearrangement and crushing of particles in the early compaction stage, minor plastic deformation, if any, and further rearrangement of particle fragments with filling the pores in the later stage. Such compaction behavior provides relative density of green hydride compacts higher than that for titanium powder of the same size. The relatively coarse titanium hydride powder with wide particle size distribution is easier to fill the pores providing highest green density.http://dx.doi.org/10.1155/2021/9999541 |
| spellingShingle | Shucheng Dong Baicheng Wang Yuchao Song Guangyu Ma Huiyan Xu Dmytro Savvakin Orest Ivasishin Comparative Study on Cold Compaction Behavior of TiH2 Powder and HDH-Ti Powder Advances in Materials Science and Engineering |
| title | Comparative Study on Cold Compaction Behavior of TiH2 Powder and HDH-Ti Powder |
| title_full | Comparative Study on Cold Compaction Behavior of TiH2 Powder and HDH-Ti Powder |
| title_fullStr | Comparative Study on Cold Compaction Behavior of TiH2 Powder and HDH-Ti Powder |
| title_full_unstemmed | Comparative Study on Cold Compaction Behavior of TiH2 Powder and HDH-Ti Powder |
| title_short | Comparative Study on Cold Compaction Behavior of TiH2 Powder and HDH-Ti Powder |
| title_sort | comparative study on cold compaction behavior of tih2 powder and hdh ti powder |
| url | http://dx.doi.org/10.1155/2021/9999541 |
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