Thermal shock resistance of glasses

Boccaccini [113,114] has reviewed the dispersion reinforcement of glass matrix composite materials. The thermal shock resistance of glass can be improved by the addition of aluminum titanate (Al2Ti05) particles [115,116]. 

Figure 2-22 Thermal shock resistance of glass/alumina composite (a), and material microstructure after thermal shock fracture (b)...

Kagawa, Y., Kurosawa, N., Kishi, T. (1993), Thermal shock resistance of SiC fibre-reinforced borosilicate glass and lithium aluminosilicate matrix composites , J. Mater. Sci., 28, 735-741. 

Experience indicates that there exist substantial differences in thermal shock resistance of one type of refractory due to particle size of grog, its amount and to firing temperature. In agreement with the above concepts, the shock resistance is usually higher when the grog is coarse, the ware porous and the glass content low. 

Figure 1. For several glass ceramics, the temperature interval causing thermal shock failure, AT, is approximately inversely proportional to the linear coefficient of thermal expansion of these materials. Glasses and alumina ceramics have less thermal shock resistance than glass ceramics of comparable thermal expansion. ...

In this study, we discussed the graded and miscible blend of polyvinyl chloride(PVC)/ polymethacrylate(polymethyl methacrylate(PMMA) or polyhexyl methacrylate(PHMA)) by a dissolution-diffusion method, and characterized graded structures of the blends by measuring FTIR spectra and Raman microscopic spectra, and thermal behaviors around the glass transition temperature(Tg) by DSC method, or by SEM-EDX observation. Finally, we measured several types of mechanical properties and thermal shock resistance of the graded polymer blends. 

M. Arnold, A. R. Boccaccini and G. Ondracek, Theoretical and experimental considerations on the thermal shock resistance of sintered glasses and ceramics using modeled microstructure-property correlations, J. Mat. Sci. 31,463-469 (1996). 

The properties of high quaUty vitreous sihca that determine its uses iaclude high chemical resistance, low coefficient of thermal expansion (5.5 X 10 /° C), high thermal shock resistance, high electrical resistivity, and high optical transmission, especially ia the ultraviolet. Bulk vitreous sihca is difficult to work because of the absence of network-modifyiag ions present ia common glass formulations. An extensive review of the properties and stmcture of vitreous sihca is available (72). 

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