Effect of bath and specimen temperature on the thermal stress resistance of brittle ceramics subjected to thermal quenching
Effect of bath and specimen temperature on the thermal stress resistance of brittle ceramics subjected to thermal quenching
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DOI：
10.1007/bf00542371
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发表时间：
1981-08
影响因子：
4.5
通讯作者：
J. Singh;Y. Tree;D. Hasselman
中科院分区：
文献类型：
--
作者：
J. Singh;Y. Tree;D. Hasselman
通过玻璃和氧化铝棒在不同温度的水浴和硅油浴中淬火，研究了试样和水浴温度对脆性陶瓷热淬火失效的影响。结果进行了讨论的淬火介质的传热系数的变化和材料性能的变化作为温度的函数。结果发现，通常假设的恒定传热系数和材料性能可能会导致相当大的误差，在定量解释的热淬火实验结果。水和油浴的膜传热系数的有效值估计为膜温度的函数，从热淬火数据。对淬火介质的选择和报告结果时应遵循的程序提出了建议。
The effect of specimen and bath temperature on the failure of brittle ceramics in a thermal quench experiment was studied by quenching glass and alumina rods in water and silicon oil baths at different temperatures. The results were discussed in terms of the variation of heat transfer coefficient of the quenching media and the change in material properties as a function of temperature. It was found that the usual assumption of constant heat transfer coefficient and material properties may lead to considerable errors in the quantitative interpretation of the results of thermal quench experiments. Effective values for the film coefficient of heat transfer for water and oil baths were estimated as a function of film temperature from thermal quench data. Recommendations were made for the selection of quenching media and for the procedure to be followed in reporting the results.