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彭易发,李争显,汪欣,刘林涛.ZrB2-玻璃陶瓷复合材料氧化分析[J].稀有金属材料与工程(英文),2019,48(4):1168~1173.[Peng Yifa,Li Zhengxian,Wang Xin and inLiu Lintao.The study of the oxidation of the ZrB2-ceramic composite[J].Rare Metal Materials and Engineering,2019,48(4):1168~1173.]
The study of the oxidation of the ZrB2-ceramic composite
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Received:September 11, 2017  Revised:December 06, 2017
DOI:
Key words: ZrB2-glass ceramic  thermodynamics  oxidation
Foundation item:国家自然科学基金青年基金(项目号51501155)
Author NameAffiliation
Peng Yifa,Li Zhengxian,Wang Xin and inLiu Lintao  
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Abstract:
      An analysis of the thermodynamics behavior of the ZrB2-glass ceramic and the phase and microstructure of the oxidation scale during the oxidation process was reported.The results indicate that the ZrB2 is oxidized to generate ZrO2,B2O3 glass phase,the oxidation product ZrO2 react with SiO2 to form ZrSiO4 during the temperature between 1000°C and 1400°C.when the temperature below 1177°C(1450K),the oxidation scale mainly contain ZrO2,B2O3 glass phase,ZrSiO4.when the temperature exceed 1177°C(1450K), the B2O3 glass phase evaporated ,at the same time,the SiO2 glass phase has good fluidity ,the oxidation Scale mainly include ZrO2,SiO2 phase ,ZrSiO4.the reaction products,B2O3phase,ZrSiO4 and fluidity SiO2 phase all have an excellent resistance for the process O2 diffuse into the matrix.