Effect of heat treatment on properties of plasma-sprayed BSAS environmental barrier coating
Using BSAS powder prepared by solid-state sintering method, Si/Mullite+BSAS/BSAS three-layer environmental barrier coatings were fabricated on SiC substrate by atmospheric plasma spraying process. The phase composition and microstructure evolution behaviour of the environmental barrier coating subje...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Journal of Materials Engineering
2023-03-01
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| Series: | Cailiao gongcheng |
| Subjects: | |
| Online Access: | http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2022.000378 |
| _version_ | 1797858910675140608 |
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| author | CUI Yongjing HONG Zhiliang GUO Mengqiu WANG Changliang JIAO Jian CHENG Laifei |
| author_facet | CUI Yongjing HONG Zhiliang GUO Mengqiu WANG Changliang JIAO Jian CHENG Laifei |
| author_sort | CUI Yongjing |
| collection | DOAJ |
| description | Using BSAS powder prepared by solid-state sintering method, Si/Mullite+BSAS/BSAS three-layer environmental barrier coatings were fabricated on SiC substrate by atmospheric plasma spraying process. The phase composition and microstructure evolution behaviour of the environmental barrier coating subjected to various heat treatment temperatures were studied by scanning electron microscope, energy dispersive spectrometer and X-ray diffraction analyzer, etc. The results indicate that as-sprayed BSAS coating is mainly composed of monoclinic BAS phase and amorphous phase; After heat treatment at 1100 ℃, the amorphous phase inside the coating is transformed to hexagonal BAS phase. With the temperature increases to 1200 ℃, the hexagonal BAS phase gradually changes to the monoclinic BAS phase. The fraction of the monoclinic BAS phase reaches the maximum at 1300 ℃ heat-treated; With further increase of the heat treatment temperature, tridymite SiO2, Ba3SiO5 and paracelsian BAS phase appear. Moreover, silicon droplets exude is detected during heat treatment at 1400 ℃. |
| first_indexed | 2024-04-09T21:21:00Z |
| format | Article |
| id | doaj.art-cfa24372bb4d46b7a5c054bc77a9814f |
| institution | Directory Open Access Journal |
| issn | 1001-4381 |
| language | zho |
| last_indexed | 2024-04-09T21:21:00Z |
| publishDate | 2023-03-01 |
| publisher | Journal of Materials Engineering |
| record_format | Article |
| series | Cailiao gongcheng |
| spelling | doaj.art-cfa24372bb4d46b7a5c054bc77a9814f2023-03-28T06:25:01ZzhoJournal of Materials EngineeringCailiao gongcheng1001-43812023-03-01513596610.11868/j.issn.1001-4381.2022.00037820230306Effect of heat treatment on properties of plasma-sprayed BSAS environmental barrier coatingCUI Yongjing0HONG Zhiliang1GUO Mengqiu2WANG Changliang3JIAO Jian4CHENG Laifei5AECC Beijing Institute of Aeronautical Materials, Beijing 100095, ChinaAECC Commercial Aircraft Engine Co., Ltd., Shanghai 201108, ChinaAECC Beijing Institute of Aeronautical Materials, Beijing 100095, ChinaAECC Beijing Institute of Aeronautical Materials, Beijing 100095, ChinaAECC Beijing Institute of Aeronautical Materials, Beijing 100095, ChinaScience and Technology on Thermostructural Composite Materials Laboratory, Northwestern Polytechnical University, Xi'an 710072, ChinaUsing BSAS powder prepared by solid-state sintering method, Si/Mullite+BSAS/BSAS three-layer environmental barrier coatings were fabricated on SiC substrate by atmospheric plasma spraying process. The phase composition and microstructure evolution behaviour of the environmental barrier coating subjected to various heat treatment temperatures were studied by scanning electron microscope, energy dispersive spectrometer and X-ray diffraction analyzer, etc. The results indicate that as-sprayed BSAS coating is mainly composed of monoclinic BAS phase and amorphous phase; After heat treatment at 1100 ℃, the amorphous phase inside the coating is transformed to hexagonal BAS phase. With the temperature increases to 1200 ℃, the hexagonal BAS phase gradually changes to the monoclinic BAS phase. The fraction of the monoclinic BAS phase reaches the maximum at 1300 ℃ heat-treated; With further increase of the heat treatment temperature, tridymite SiO2, Ba3SiO5 and paracelsian BAS phase appear. Moreover, silicon droplets exude is detected during heat treatment at 1400 ℃.http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2022.000378environmental barrier coatingplasma sprayingsilicon carbide ceramic matrix compositebsas |
| spellingShingle | CUI Yongjing HONG Zhiliang GUO Mengqiu WANG Changliang JIAO Jian CHENG Laifei Effect of heat treatment on properties of plasma-sprayed BSAS environmental barrier coating Cailiao gongcheng environmental barrier coating plasma spraying silicon carbide ceramic matrix composite bsas |
| title | Effect of heat treatment on properties of plasma-sprayed BSAS environmental barrier coating |
| title_full | Effect of heat treatment on properties of plasma-sprayed BSAS environmental barrier coating |
| title_fullStr | Effect of heat treatment on properties of plasma-sprayed BSAS environmental barrier coating |
| title_full_unstemmed | Effect of heat treatment on properties of plasma-sprayed BSAS environmental barrier coating |
| title_short | Effect of heat treatment on properties of plasma-sprayed BSAS environmental barrier coating |
| title_sort | effect of heat treatment on properties of plasma sprayed bsas environmental barrier coating |
| topic | environmental barrier coating plasma spraying silicon carbide ceramic matrix composite bsas |
| url | http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2022.000378 |
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