FABRICATION AND PROPERTIES OF SiO2/ZIRCONIUM PHOSPHATE-B2O3-SiO2 ANTI-OXIDATION COATINGS FOR Cf/SiC COMPOSITES
This paper reports the fabrication of a novel SiO2/zirconium phosphate (ZrP)-B2O3-SiO2 double-layer coating on Cf/SiC composites via brushing and sol-gel routes for achieving better anti-oxidation performance. The composition of raw materials and sintering temperature were studied to explore the pos...
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| Format: | Article |
| Language: | English |
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University of Chemistry and Technology, Prague
2015-09-01
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| Series: | Ceramics-Silikáty |
| Subjects: | |
| Online Access: |
http://www.ceramics-silikaty.cz/2015/pdf/2015_03_233.pdf
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| _version_ | 1811239492284055552 |
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| author | Xue-Jin Yang Yu-Di Zhang Zhang Chang-Rui Li Bin |
| author_facet | Xue-Jin Yang Yu-Di Zhang Zhang Chang-Rui Li Bin |
| author_sort | Xue-Jin Yang |
| collection | DOAJ |
| description | This paper reports the fabrication of a novel SiO2/zirconium phosphate (ZrP)-B2O3-SiO2 double-layer coating on Cf/SiC composites via brushing and sol-gel routes for achieving better anti-oxidation performance. The composition of raw materials and sintering temperature were studied to explore the possibility of development of ZrP coatings to meet the demand for oxidation resistance at high temperature. It was attempted to improve the self-healing ability of coatings via an additional SiO2 layer. Such double-layer coatings developed were characterized by Scanning Electron Microscopy (SEM), Energy Dispersive Spectrometer (EDS), X-ray Diffraction (XRD). The results showed that such coating was composed of a ZrP-B2O3-SiO2 multi-phase inner layer and a SiO2 outer layer. Better oxidation resistance was observed for coatings with higher contents of ZrP powders. After static oxidation at 1500oC for 20 min, the flexural strength of specimens containing 80 wt. % ZrP was up to 314.6 MPa, retaining 89.1 % of the original value of Cf/SiC composites. |
| first_indexed | 2024-04-12T13:00:38Z |
| format | Article |
| id | doaj.art-c4f7054a24fb4856bef2d02384a618fc |
| institution | Directory Open Access Journal |
| issn | 0862-5468 1804-5847 |
| language | English |
| last_indexed | 2024-04-12T13:00:38Z |
| publishDate | 2015-09-01 |
| publisher | University of Chemistry and Technology, Prague |
| record_format | Article |
| series | Ceramics-Silikáty |
| spelling | doaj.art-c4f7054a24fb4856bef2d02384a618fc2022-12-22T03:32:10ZengUniversity of Chemistry and Technology, PragueCeramics-Silikáty0862-54681804-58472015-09-01593233237.20160310204236FABRICATION AND PROPERTIES OF SiO2/ZIRCONIUM PHOSPHATE-B2O3-SiO2 ANTI-OXIDATION COATINGS FOR Cf/SiC COMPOSITESXue-Jin Yang0Yu-Di Zhang1Zhang Chang-Rui2Li Bin3 Science and Technology on Advanced Ceramic Fibers and Composites Laboratory, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, PR China Science and Technology on Advanced Ceramic Fibers and Composites Laboratory, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, PR China Science and Technology on Advanced Ceramic Fibers and Composites Laboratory, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, PR China Science and Technology on Advanced Ceramic Fibers and Composites Laboratory, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, PR China This paper reports the fabrication of a novel SiO2/zirconium phosphate (ZrP)-B2O3-SiO2 double-layer coating on Cf/SiC composites via brushing and sol-gel routes for achieving better anti-oxidation performance. The composition of raw materials and sintering temperature were studied to explore the possibility of development of ZrP coatings to meet the demand for oxidation resistance at high temperature. It was attempted to improve the self-healing ability of coatings via an additional SiO2 layer. Such double-layer coatings developed were characterized by Scanning Electron Microscopy (SEM), Energy Dispersive Spectrometer (EDS), X-ray Diffraction (XRD). The results showed that such coating was composed of a ZrP-B2O3-SiO2 multi-phase inner layer and a SiO2 outer layer. Better oxidation resistance was observed for coatings with higher contents of ZrP powders. After static oxidation at 1500oC for 20 min, the flexural strength of specimens containing 80 wt. % ZrP was up to 314.6 MPa, retaining 89.1 % of the original value of Cf/SiC composites. http://www.ceramics-silikaty.cz/2015/pdf/2015_03_233.pdf Cf/SiC composites Zirconium phosphate SiO2 Anti-oxidation coatings |
| spellingShingle | Xue-Jin Yang Yu-Di Zhang Zhang Chang-Rui Li Bin FABRICATION AND PROPERTIES OF SiO2/ZIRCONIUM PHOSPHATE-B2O3-SiO2 ANTI-OXIDATION COATINGS FOR Cf/SiC COMPOSITES Ceramics-Silikáty Cf/SiC composites Zirconium phosphate SiO2 Anti-oxidation coatings |
| title | FABRICATION AND PROPERTIES OF SiO2/ZIRCONIUM PHOSPHATE-B2O3-SiO2 ANTI-OXIDATION COATINGS FOR Cf/SiC COMPOSITES |
| title_full | FABRICATION AND PROPERTIES OF SiO2/ZIRCONIUM PHOSPHATE-B2O3-SiO2 ANTI-OXIDATION COATINGS FOR Cf/SiC COMPOSITES |
| title_fullStr | FABRICATION AND PROPERTIES OF SiO2/ZIRCONIUM PHOSPHATE-B2O3-SiO2 ANTI-OXIDATION COATINGS FOR Cf/SiC COMPOSITES |
| title_full_unstemmed | FABRICATION AND PROPERTIES OF SiO2/ZIRCONIUM PHOSPHATE-B2O3-SiO2 ANTI-OXIDATION COATINGS FOR Cf/SiC COMPOSITES |
| title_short | FABRICATION AND PROPERTIES OF SiO2/ZIRCONIUM PHOSPHATE-B2O3-SiO2 ANTI-OXIDATION COATINGS FOR Cf/SiC COMPOSITES |
| title_sort | fabrication and properties of sio2 zirconium phosphate b2o3 sio2 anti oxidation coatings for cf sic composites |
| topic | Cf/SiC composites Zirconium phosphate SiO2 Anti-oxidation coatings |
| url |
http://www.ceramics-silikaty.cz/2015/pdf/2015_03_233.pdf
|
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