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Microstructure and Strength of Al_2O_3/Al_2O_3 Joints Bonded with ZnO-Al_2O_3-B_2O_3_SiO_2 GlasseCeramic
Alternative TitleMicrostructure and Strength of Al_2O_3/Al_2O_3 Joints Bonded with ZnO-Al_2O_3-B_2O_3_SiO_2 GlasseCeramic
Zhu Weiwei; Chen Jichun; Hao Chuanyong; Zhang Jinsong
2014
Source PublicationJournal of Materials Science & Technology
ISSN1005-0302
Volume30Issue:9Pages:944-948
AbstractZnO-Al_2O_3-B_2O_3-SiO_2 (ZABS) glass powder was used as interlayer to join alumina ceramics. The effect of joining temperature on the microstructure and strength of joints was investigated. The results showed that the ZABS glass can react with alumina substrate to form a layer of ZnAl_2O_4 at Al_2O_3/glass interface. Bending test exhibited that low joining temperature (1150 °C) led to low joint strength due to the formation of pores in the interlayer, originated by high viscosity of the glass. High joining temperature (1250 °C) also resulted in low joint strength, because of large CTE (coefficient of thermal expansion) mismatch between amorphous interlayer and alumina substrate. Therefore, only when the joining temperature was appropriate (1200 °C), defect-free interface and high joint strength can be obtained. The optimum joint strength reached 285 MPa, which was the same as the base material strength.
Other AbstractZnO-Al_2O_3-B_2O_3-SiO_2 (ZABS) glass powder was used as interlayer to join alumina ceramics. The effect of joining temperature on the microstructure and strength of joints was investigated. The results showed that the ZABS glass can react with alumina substrate to form a layer of ZnAl_2O_4 at Al_2O_3/glass interface. Bending test exhibited that low joining temperature (1150 °C) led to low joint strength due to the formation of pores in the interlayer, originated by high viscosity of the glass. High joining temperature (1250 °C) also resulted in low joint strength, because of large CTE (coefficient of thermal expansion) mismatch between amorphous interlayer and alumina substrate. Therefore, only when the joining temperature was appropriate (1200 °C), defect-free interface and high joint strength can be obtained. The optimum joint strength reached 285 MPa, which was the same as the base material strength.
KeywordAlumina Joining Glasseceramic Microstructure Strength
Indexed ByCSCD
Language英语
CSCD IDCSCD:5244062
Citation statistics
Cited Times:1[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/152606
Collection中国科学院金属研究所
Affiliation中国科学院金属研究所
Recommended Citation
GB/T 7714
Zhu Weiwei,Chen Jichun,Hao Chuanyong,et al. Microstructure and Strength of Al_2O_3/Al_2O_3 Joints Bonded with ZnO-Al_2O_3-B_2O_3_SiO_2 GlasseCeramic[J]. Journal of Materials Science & Technology,2014,30(9):944-948.
APA Zhu Weiwei,Chen Jichun,Hao Chuanyong,&Zhang Jinsong.(2014).Microstructure and Strength of Al_2O_3/Al_2O_3 Joints Bonded with ZnO-Al_2O_3-B_2O_3_SiO_2 GlasseCeramic.Journal of Materials Science & Technology,30(9),944-948.
MLA Zhu Weiwei,et al."Microstructure and Strength of Al_2O_3/Al_2O_3 Joints Bonded with ZnO-Al_2O_3-B_2O_3_SiO_2 GlasseCeramic".Journal of Materials Science & Technology 30.9(2014):944-948.
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