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NON-IOX GLASSES WITH HIGH COEFFICIENT OF THERMAL EXPANSION AND PREFERENTIAL FRACTURE BEHAVIOR FOR THERMAL TEMPERING
NON-IOX GLASSES WITH HIGH COEFFICIENT OF THERMAL EXPANSION AND PREFERENTIAL FRACTURE BEHAVIOR FOR THERMAL TEMPERING
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机译:具有高热膨胀系数和优先断裂特性的非IOX玻璃
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摘要
The disclosure relates to glass compositions with high coefficients of thermal expansion and low fracture toughness designed for thermal tempering. These glasses are ideally suited to produce a "dicing" pattern when thermally tempered, even when thin ( 3 mm). Disclosed glasses have high thermal expansions at low and high temperatures to produce increased temper stresses once quenched, coupled with low fracture toughness which promotes crack bifurcation and enhanced frangibility. Methods of making such glasses are also provided.
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