ZrC, HfC, and ZrC/ZrxSiy coatings prepared via molten salt Solid–Liquid two-phase diffusion method and ablation properties
ZrC, HfC, and ZrC/ZrxSiy composite ceramic coatings were prepared on the surface of carbon-matrix composites via molten salt solid–liquid two-phase diffusion to improve the ablation resistance of the C/C composites. The preparation of the coating composition could be controlled by using different po...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2022-09-01
|
| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785422010298 |
| _version_ | 1797991979483660288 |
|---|---|
| author | Nanjun Deng Wei Sun Xiang Xiong Hongbo Zhang Yurong Xu Xuan Lv |
| author_facet | Nanjun Deng Wei Sun Xiang Xiong Hongbo Zhang Yurong Xu Xuan Lv |
| author_sort | Nanjun Deng |
| collection | DOAJ |
| description | ZrC, HfC, and ZrC/ZrxSiy composite ceramic coatings were prepared on the surface of carbon-matrix composites via molten salt solid–liquid two-phase diffusion to improve the ablation resistance of the C/C composites. The preparation of the coating composition could be controlled by using different powders. The effects of temperature and holding time on the microstructures of ZrC coatings and their variation laws were studied. Results showed that the ZrC coating density increased with temperature and holding time. At a holding time of 16 h, the growth of the ZrC coating was slow. The volatilization of SiO2 caused loose ZrO2 to splash. Moreover, the Si content was found to affect the ablation performance of the ZrC/ZrxSiy composite ceramic coatings, and the ablation mechanism was studied. The ZrC, HfC, and ZrC/ZrxSiy composite ceramic coatings exhibited good ablation properties. The ablation rates of the ZrC and HfC coatings were 0.805 and 0.715 mg/s, respectively, after oxyacetylene flame ablation at 3000 °C for 60 s. |
| first_indexed | 2024-04-11T09:00:39Z |
| format | Article |
| id | doaj.art-8e776aaca61f458db1cea101ce269d6c |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-04-11T09:00:39Z |
| publishDate | 2022-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-8e776aaca61f458db1cea101ce269d6c2022-12-22T04:32:47ZengElsevierJournal of Materials Research and Technology2238-78542022-09-0120572589ZrC, HfC, and ZrC/ZrxSiy coatings prepared via molten salt Solid–Liquid two-phase diffusion method and ablation propertiesNanjun Deng0Wei Sun1Xiang Xiong2Hongbo Zhang3Yurong Xu4Xuan Lv5State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, ChinaState Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China; Corresponding author.State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, ChinaState Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, ChinaSystem Design Institute of Hubei Aerospace Technology AcademySystem Design Institute of Hubei Aerospace Technology AcademyZrC, HfC, and ZrC/ZrxSiy composite ceramic coatings were prepared on the surface of carbon-matrix composites via molten salt solid–liquid two-phase diffusion to improve the ablation resistance of the C/C composites. The preparation of the coating composition could be controlled by using different powders. The effects of temperature and holding time on the microstructures of ZrC coatings and their variation laws were studied. Results showed that the ZrC coating density increased with temperature and holding time. At a holding time of 16 h, the growth of the ZrC coating was slow. The volatilization of SiO2 caused loose ZrO2 to splash. Moreover, the Si content was found to affect the ablation performance of the ZrC/ZrxSiy composite ceramic coatings, and the ablation mechanism was studied. The ZrC, HfC, and ZrC/ZrxSiy composite ceramic coatings exhibited good ablation properties. The ablation rates of the ZrC and HfC coatings were 0.805 and 0.715 mg/s, respectively, after oxyacetylene flame ablation at 3000 °C for 60 s.http://www.sciencedirect.com/science/article/pii/S2238785422010298Molten salt solid–liquid two-phase diffusion methodZrCHfCZrC/ZrxSiyAblation performance |
| spellingShingle | Nanjun Deng Wei Sun Xiang Xiong Hongbo Zhang Yurong Xu Xuan Lv ZrC, HfC, and ZrC/ZrxSiy coatings prepared via molten salt Solid–Liquid two-phase diffusion method and ablation properties Journal of Materials Research and Technology Molten salt solid–liquid two-phase diffusion method ZrC HfC ZrC/ZrxSiy Ablation performance |
| title | ZrC, HfC, and ZrC/ZrxSiy coatings prepared via molten salt Solid–Liquid two-phase diffusion method and ablation properties |
| title_full | ZrC, HfC, and ZrC/ZrxSiy coatings prepared via molten salt Solid–Liquid two-phase diffusion method and ablation properties |
| title_fullStr | ZrC, HfC, and ZrC/ZrxSiy coatings prepared via molten salt Solid–Liquid two-phase diffusion method and ablation properties |
| title_full_unstemmed | ZrC, HfC, and ZrC/ZrxSiy coatings prepared via molten salt Solid–Liquid two-phase diffusion method and ablation properties |
| title_short | ZrC, HfC, and ZrC/ZrxSiy coatings prepared via molten salt Solid–Liquid two-phase diffusion method and ablation properties |
| title_sort | zrc hfc and zrc zrxsiy coatings prepared via molten salt solid liquid two phase diffusion method and ablation properties |
| topic | Molten salt solid–liquid two-phase diffusion method ZrC HfC ZrC/ZrxSiy Ablation performance |
| url | http://www.sciencedirect.com/science/article/pii/S2238785422010298 |
| work_keys_str_mv | AT nanjundeng zrchfcandzrczrxsiycoatingspreparedviamoltensaltsolidliquidtwophasediffusionmethodandablationproperties AT weisun zrchfcandzrczrxsiycoatingspreparedviamoltensaltsolidliquidtwophasediffusionmethodandablationproperties AT xiangxiong zrchfcandzrczrxsiycoatingspreparedviamoltensaltsolidliquidtwophasediffusionmethodandablationproperties AT hongbozhang zrchfcandzrczrxsiycoatingspreparedviamoltensaltsolidliquidtwophasediffusionmethodandablationproperties AT yurongxu zrchfcandzrczrxsiycoatingspreparedviamoltensaltsolidliquidtwophasediffusionmethodandablationproperties AT xuanlv zrchfcandzrczrxsiycoatingspreparedviamoltensaltsolidliquidtwophasediffusionmethodandablationproperties |