Preparation and Properties of Porous Coal-series Kaolin Ceramics by Selective Laser Sintering
Porous ceramics with complex structure were prepared by selective laser sintering (SLS) method using coal-series kaolin as raw materials. The effect of SLS process parameters and sintering temperature on properties of porous coal-series kaolin ceramics was investigated. The phase composition and mic...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Journal of Materials Engineering
2018-07-01
|
| Series: | Cailiao gongcheng |
| Subjects: | |
| Online Access: | http://jme.biam.ac.cn/CN/Y2018/V46/I7/36 |
| _version_ | 1797968126255562752 |
|---|---|
| author | CHEN Jing-yan WU Jia-min CHEN An-nan XIAO Huan LI Guo-rui LIU Meng-yue LI Chen-hui SHI Yu-sheng |
| author_facet | CHEN Jing-yan WU Jia-min CHEN An-nan XIAO Huan LI Guo-rui LIU Meng-yue LI Chen-hui SHI Yu-sheng |
| author_sort | CHEN Jing-yan |
| collection | DOAJ |
| description | Porous ceramics with complex structure were prepared by selective laser sintering (SLS) method using coal-series kaolin as raw materials. The effect of SLS process parameters and sintering temperature on properties of porous coal-series kaolin ceramics was investigated. The phase composition and microstructure of porous coal-series kaolin ceramics were characterized by X-ray diffractometer (XRD) and scanning electron microscope (SEM). The results indicate that the coal-series kaolin/E12 composite powders can be formed well through SLS method. The green bodies show the superior quality. <i>Z</i> direction error is 10.43%, relative density is 37.89% and bending strength is 0.984MPa under laser power of 5W, scanning speed of 2000mm/s, scanning space of 0.13mm and layer thickness of 0.15mm. With the increase of sintering temperature, the linear shrinkage and bending strength of the porous coal-series kaolin ceramics increase gradually, while the open porosity decreases. The porous coal-series kaolin ceramics possess a high open porosity of 44.55% and a good bending strength of 6.1MPa when the sintering temperature is 1450℃. The main phase in the prepared porous ceramics is mullite phase, and they have a typical three-dimensional skeleton structure. |
| first_indexed | 2024-04-11T02:42:00Z |
| format | Article |
| id | doaj.art-30ad2b25f78b42f6bab7f040c28b1845 |
| institution | Directory Open Access Journal |
| issn | 1001-4381 1001-4381 |
| language | zho |
| last_indexed | 2024-04-11T02:42:00Z |
| publishDate | 2018-07-01 |
| publisher | Journal of Materials Engineering |
| record_format | Article |
| series | Cailiao gongcheng |
| spelling | doaj.art-30ad2b25f78b42f6bab7f040c28b18452023-01-02T18:50:37ZzhoJournal of Materials EngineeringCailiao gongcheng1001-43811001-43812018-07-01467364310.11868/j.issn.1001-4381.2017.000854201807000854Preparation and Properties of Porous Coal-series Kaolin Ceramics by Selective Laser SinteringCHEN Jing-yan0WU Jia-min1CHEN An-nan2XIAO Huan3LI Guo-rui4LIU Meng-yue5LI Chen-hui6SHI Yu-sheng7State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaState Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaState Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaState Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaState Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaState Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaState Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaState Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaPorous ceramics with complex structure were prepared by selective laser sintering (SLS) method using coal-series kaolin as raw materials. The effect of SLS process parameters and sintering temperature on properties of porous coal-series kaolin ceramics was investigated. The phase composition and microstructure of porous coal-series kaolin ceramics were characterized by X-ray diffractometer (XRD) and scanning electron microscope (SEM). The results indicate that the coal-series kaolin/E12 composite powders can be formed well through SLS method. The green bodies show the superior quality. <i>Z</i> direction error is 10.43%, relative density is 37.89% and bending strength is 0.984MPa under laser power of 5W, scanning speed of 2000mm/s, scanning space of 0.13mm and layer thickness of 0.15mm. With the increase of sintering temperature, the linear shrinkage and bending strength of the porous coal-series kaolin ceramics increase gradually, while the open porosity decreases. The porous coal-series kaolin ceramics possess a high open porosity of 44.55% and a good bending strength of 6.1MPa when the sintering temperature is 1450℃. The main phase in the prepared porous ceramics is mullite phase, and they have a typical three-dimensional skeleton structure.http://jme.biam.ac.cn/CN/Y2018/V46/I7/36coal-series kaolinselective laser sinteringporous ceramicsopen porositybending strength |
| spellingShingle | CHEN Jing-yan WU Jia-min CHEN An-nan XIAO Huan LI Guo-rui LIU Meng-yue LI Chen-hui SHI Yu-sheng Preparation and Properties of Porous Coal-series Kaolin Ceramics by Selective Laser Sintering Cailiao gongcheng coal-series kaolin selective laser sintering porous ceramics open porosity bending strength |
| title | Preparation and Properties of Porous Coal-series Kaolin Ceramics by Selective Laser Sintering |
| title_full | Preparation and Properties of Porous Coal-series Kaolin Ceramics by Selective Laser Sintering |
| title_fullStr | Preparation and Properties of Porous Coal-series Kaolin Ceramics by Selective Laser Sintering |
| title_full_unstemmed | Preparation and Properties of Porous Coal-series Kaolin Ceramics by Selective Laser Sintering |
| title_short | Preparation and Properties of Porous Coal-series Kaolin Ceramics by Selective Laser Sintering |
| title_sort | preparation and properties of porous coal series kaolin ceramics by selective laser sintering |
| topic | coal-series kaolin selective laser sintering porous ceramics open porosity bending strength |
| url | http://jme.biam.ac.cn/CN/Y2018/V46/I7/36 |
| work_keys_str_mv | AT chenjingyan preparationandpropertiesofporouscoalserieskaolinceramicsbyselectivelasersintering AT wujiamin preparationandpropertiesofporouscoalserieskaolinceramicsbyselectivelasersintering AT chenannan preparationandpropertiesofporouscoalserieskaolinceramicsbyselectivelasersintering AT xiaohuan preparationandpropertiesofporouscoalserieskaolinceramicsbyselectivelasersintering AT liguorui preparationandpropertiesofporouscoalserieskaolinceramicsbyselectivelasersintering AT liumengyue preparationandpropertiesofporouscoalserieskaolinceramicsbyselectivelasersintering AT lichenhui preparationandpropertiesofporouscoalserieskaolinceramicsbyselectivelasersintering AT shiyusheng preparationandpropertiesofporouscoalserieskaolinceramicsbyselectivelasersintering |