Effect of Al2O3 content on residual stress and properties of CAS glass-ceramics

Jun Xie; Xinjiang Long; Jinshu Cheng; Hong Li

doi:10.1007/s11595-007-6889-x

Journal of Wuhan University of Technology Materials Science Edition ›› 2008, Vol. 23 ›› Issue (6) : 889 -892. DOI: 10.1007/s11595-007-6889-x

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Effect of Al₂O₃ content on residual stress and properties of CAS glass-ceramics

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Abstract

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 “sin² ψ” 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.

Keywords

residual stress / Cao-Al₂O₃-SiO₂ glass-ceramic / X-ray diffraction / crystallization temperature

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Jun Xie, Xinjiang Long, Jinshu Cheng, Hong Li. Effect of Al₂O₃ content on residual stress and properties of CAS glass-ceramics. Journal of Wuhan University of Technology Materials Science Edition, 2008, 23(6): 889-892 DOI:10.1007/s11595-007-6889-x

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