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Bubble phenomenon of ZrB2 based composites at high temperatures
Li, Chong; Niu, Yaran; Liu, Tao; Zhong, Xin; Pan, Xiaohui; Zeng, Yi; Zheng, Xuebin; Ding, Chuanxian
2019-04-15
Source PublicationCERAMICS INTERNATIONAL
ISSN0272-8842
Volume45Issue:6Pages:6648
SubtypeArticle
AbstractBubble phenomenon is common for ultra-high temperature ceramics (UHTCs) during oxidation or ablation processes, which will impair the oxidation/ablation resistant properties. This work is aiming to illuminate the formation and rupture processes of bubbles. In this work, ZrB2-SiC-WB composite coatings were prepared via vacuum plasma spray technique and oxidized at 1500 degrees C for different durations. Obvious bubble phenomenon was observed. The morphology and distribution of bubbles were characterized. The formation mechanism of bubbles was calculated and analyzed based on thermal dynamics. The results showed that B2O3 gas played a key role in affecting the bubble behaviors. Bubbles tended to nucleate near the interface between the solid and liquid oxide layers. Small bubbles aggregated to large bubbles near the outmost liquid layer. Large bubbles near the surface were easy to rupture. The calculated results were consistent with the observed results.
KeywordZrB2 based composites Bubble phenomenon Formation mechanism Oxidation Ultra-high temperature ceramics
DOI10.1016/j.ceramint.2018.12.153
Language英语
WOS Research AreaMaterials Science
PublisherELSEVIER SCI LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27182
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Li, Chong,Niu, Yaran,Liu, Tao,et al. Bubble phenomenon of ZrB2 based composites at high temperatures[J]. CERAMICS INTERNATIONAL,2019,45(6):6648.
APA Li, Chong.,Niu, Yaran.,Liu, Tao.,Zhong, Xin.,Pan, Xiaohui.,...&Ding, Chuanxian.(2019).Bubble phenomenon of ZrB2 based composites at high temperatures.CERAMICS INTERNATIONAL,45(6),6648.
MLA Li, Chong,et al."Bubble phenomenon of ZrB2 based composites at high temperatures".CERAMICS INTERNATIONAL 45.6(2019):6648.
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