HIGH-TEMPERATURE MECHANICAL PROPERTIES OF GRAPHITE. I. CREEP IN COMPRESSION
HIGH-TEMPERATURE MECHANICAL PROPERTIES OF GRAPHITE. I. CREEP IN COMPRESSION
复制标题
石墨的高温机械性能。
DOI：
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发表时间：
1959
期刊：
影响因子：
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通讯作者：
A. R. Driesner
中科院分区：
文献类型：
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作者：
P. Wagner;A. R. Driesner
对石墨在2270 ~ 2780°K温度范围内的稳态压缩蠕变速率进行了测量。观察到蠕变到破坏有两种方式之一；17个样品中有3个在破坏发生前表现出第三阶段的蠕变，其余14个样品的破坏方式与石墨在拉伸下观察到的类似，即断裂而没有出现第三阶段。所有后一种类型的蠕变数据都用一个经典的速率方程来关联：速率=K(σ/σ b)n exp（−E/RT）。
Measurements have been made on the steady‐state rates of compressive creep of graphite in the temperature range 2270 to 2780°K. Creep to failure was observed to occur in one of two ways; three out of seventeen samples exhibited a third stage of creep before failure occurred, the remaining fourteen samples failed in a manner analogous to that observed for graphite in tension, that is fracture without the appearance of a third stage. All the latter type creep data are correlated by a classical rate equation of the form: rate=K(σ/σB)n exp(−E/RT).