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The ZrO2 Formation in ZrB2/SiC Composite Irradiated by Laser

by Ling Liu 1,2,*, Zhuang Ma 1,2, Zhenyu Yan 1,2, Shizhen Zhu 1,2 and Lihong Gao 1,2
School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China
National Key Laboratory of Science and Technology on Materials under Shock and Impact, Beijing 100081, China
Author to whom correspondence should be addressed.
Academic Editor: Luciano Feo
Materials 2015, 8(12), 8745-8750;
Received: 3 November 2015 / Revised: 30 November 2015 / Accepted: 3 December 2015 / Published: 14 December 2015
(This article belongs to the Section Advanced Composites)
In order to clearly understand the details of ZrO2 formation during ablation, high intensity continuous laser was chosen to irradiate ZrB2/SiC. The results reveal that there are two different modes of ZrO2 formation depending on whether liquid SiO2 is present. When liquid SiO2 is present, ZrO2 generated by the oxidation of ZrB2 is firstly dissolved into SiO2. Then, ZrO2 will precipitate again, the temperature will decrease and the SiO2 will evaporate. Otherwise, the ZrB2 will be oxidized to ZrO2 directly. View Full-Text
Keywords: ZrB2/SiC; laser irradiation; ZrO2 formation ZrB2/SiC; laser irradiation; ZrO2 formation
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MDPI and ACS Style

Liu, L.; Ma, Z.; Yan, Z.; Zhu, S.; Gao, L. The ZrO2 Formation in ZrB2/SiC Composite Irradiated by Laser. Materials 2015, 8, 8745-8750.

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