Shape Memory Effect During Preparation of Alumia Ceramic Tubes
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2014年第5期
论文作者：钟莲云 吴伯麟
文章页码：869 - 872
摘 要：Pure alumina ceramic tube and 95 alumina ceramic（the ceramic with 95.84% alumina） tube were prepared by using self-prepared alumina micrometer powder without agglomeration as raw material. The ceramic green was shaped by isostatic pressing and sintered at different temperature from 800 to 1 600 ℃ for 2 h. The 95 ceramic tube sintered at 1 550 ℃ for 2 h had mean particle size of 4 μm, bend strength of 437 MPa and volume density of 3.714 g/cm3. Shape memory effect during sintering was observed. XRD results showed that no phase transition occurred during shape memory process, which indicated that shape memory effect was not caused by phase transition. Several probable causes of the alumina ceramic shape memory effect were discussed in this paper.
钟莲云1，吴伯麟2
1. School of Chemistry and Chemical Engineering of Guangxi University for Nationalities, Key Laboratory of Chemical and Biological Transformation Process of Guangxi Higher Education Institutes2. College of Materials Science and Engineering,Guilin University of Technology
摘 要：Pure alumina ceramic tube and 95 alumina ceramic（the ceramic with 95.84% alumina） tube were prepared by using self-prepared alumina micrometer powder without agglomeration as raw material. The ceramic green was shaped by isostatic pressing and sintered at different temperature from 800 to 1 600 ℃ for 2 h. The 95 ceramic tube sintered at 1 550 ℃ for 2 h had mean particle size of 4 μm, bend strength of 437 MPa and volume density of 3.714 g/cm3. Shape memory effect during sintering was observed. XRD results showed that no phase transition occurred during shape memory process, which indicated that shape memory effect was not caused by phase transition. Several probable causes of the alumina ceramic shape memory effect were discussed in this paper.
关键词：
