Effect of Al_2O_3 Content on Residual Stress and Proper-ties of CAS Glass-ceramics  

作　　者：谢俊 

机构地区：[1]Key Laboratory of Silicate Materials Science and Engineering (Wuhan University of Technology),Ministry of Education, Wuhan University of Technology

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2008年第6期889-892,共4页武汉理工大学学报（材料科学英文版）

基　　金：Funded by the Open Fund Project of Key Laboratory of New Processing Technology for Nonferrous Metal and Materials, Ministry of Education(Guangxi University)(No.063006-5C-22);the National Natural Science Foun-dation of China(50272043);Key Technology R&D Program of China(2006BAJ02B00)

摘　　要：The structure and properties of the glass-ceramics were tested with X-ray diffraction testing instrument,correlative software,and other modern testing means.Then the effect of Al2O3 content on internal stresses in CaO-Al2O3-SiO2 glass-ceramics was studied deeply.In order to study the relationship of Al2O3 to the residual stress of CaO-Al2O3-SiO2 glass-ceramics,X-ray diffraction ＂sin2ψ＂ was used.The means utilized the x radial incidence produced from cathode radial tube,and took the space between crystals as measurement of strain.When the stresses produced,the space between crystals changed and the diffraction peak moved during Bragg diffraction.The magnitude of movement is related to the stresses.The experimental results show the residual stress is considerably high and Al2O3 can influence the mechanical properties of this material hugely.The structure and properties of the glass-ceramics were tested with X-ray diffraction testing instrument,correlative software,and other modern testing means.Then the effect of Al2O3 content on internal stresses in CaO-Al2O3-SiO2 glass-ceramics was studied deeply.In order to study the relationship of Al2O3 to the residual stress of CaO-Al2O3-SiO2 glass-ceramics,X-ray diffraction ＂sin2ψ＂ was used.The means utilized the x radial incidence produced from cathode radial tube,and took the space between crystals as measurement of strain.When the stresses produced,the space between crystals changed and the diffraction peak moved during Bragg diffraction.The magnitude of movement is related to the stresses.The experimental results show the residual stress is considerably high and Al2O3 can influence the mechanical properties of this material hugely.

关 键 词：residual stress Cao-A1203-SiO2 glass-ceramic X-ray diffraction crystallization temperature 

分 类 号：TQ174.1[化学工程—陶瓷工业]