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Studies on LCMAS Glass-Ceramics Binding With SiC Fibre

Yang Hanmei Guo Jingkun Zhang Yufeng (Shanghai Institute of ceramics,Academia Sinica,Shanghai,200050)Huang Sizhong Zhu Peinan (Department of Materials Science and Engineering,Tongji University,Shanghai,200092)  
In this pater,glass-ceramic matrix material which may be well matched with SiC fibre wasstudied.Adapting a tailor making method of preparation,Li_2O-CaO-Al_2O_3-SiO_2 system glassmixed with MgO as an additive was sintered.When MgO was introduced into LCAS glass inthe range of 0~16wt%,a series of well densified specimens could be obtained.It was foundthat the α of different specimens increases with increasing amount of added MgO.According tothe results provided by DTA and XRD analysis,it has been shown that the phase compositionand the related microstructure of glass-ceramics will change due to the MgO introduced.As a rule the influence of α in different specimens would be expected.The relationship betweencomposition,property and structure for the glass-ceramics was also discussed.
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