Craze yielding of polycarbonate in N2, Ar, and O2 at low pressures and temperatures

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Craze yielding of polycarbonate in N2, Ar, and O2 at low pressures and temperatures

机译：在低压和低温下在N2，Ar和O2中产生的聚碳酸酯热裂纹

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The tensile stress‐strain behavior of PC was measured in mixtures of He, which is inert, and each of the following crazing agents: N2, Ar, and O2 at partial pressures of 0–1 atm and in the temperature range above 77 K. The yield point for crazing depends on temperature, pressure, and the shear yield point according to the following equation: σc/σs= (P exp(Q/RT)/P*)-1/12, where Q and P* depend on the gas. The values of Q are approximately the same as those for the adsorption and absorption energies as determined by theories and experiments. The maximum sensitivity of the craze yield point to the partial pressure of the crazing gas occurs at the lowest pressure for crazing. In the case of N2, a 1% change in the partial pressure can produce about a 0.45‐ksi change in the yield point.

机译：PC的拉伸应力-应变行为是在惰性的He的混合物以及以下每种裂纹剂中测量的：N2，Ar和O2，分压为0-1 atm，温度范围为77K。开裂的屈服点取决于温度，压力和剪切屈服点，取决于以下公式：σc/σs=（P exp（Q / RT）/ P *）-1/12，其中Q和P *取决于气体。 Q的值与通过理论和实验确定的吸附能和吸收能大致相同。裂纹屈服点对裂纹气体分压的最大敏感性出现在用于裂纹的最低压力下。对于N2，分压变化1％会使屈服点变化约0.45ksi。

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《Journal of Applied Physics》 |1975年第10期|P.4130-4135|共6页
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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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8. Craze Yielding of Polycarbonate in N2, Ar, and O2 at Low Pressures and Temperatures. [R] . Brown, N., Imai, Y. 1975

机译：在低压和低温下在N2，ar和O2中产生聚碳酸酯的开裂。

Craze yielding of polycarbonate in N2, Ar, and O2 at low pressures and temperatures

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