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Author Steward, E. G. ♦ Cook, B. P. ♦ Kellett, E. A.
Sponsorship USDOE
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword METALS, CERAMICS, AND OTHER MATERIALS ♦ CARBON ♦ DEFECTS ♦ EXPANSION ♦ GRAPHITE ♦ HIGH TEMPERATURE ♦ LATTICES ♦ LOW TEMPERATURE ♦ MEASURED VALUES ♦ TEMPERATURE
Abstract Thermal expansion in graphitic carbons perpendicular to the hexagonal layer planes was investigated. Measurements made at temperatures up to 2600 deg C indicated that whereas the rate of expansion is dependent on the interlayer spacing, it is not significantly dependent for a given spacing on stacking disorder. Measurements made at temperatures down to -- 196 deg C indicated that for carbons of different graphitic penfection there are different limiting distances of closest approach between the layers. The curves for interlayer spacings vs. temperature show that whereas the high-temperature behavior is chiefly controlled by the interlayer spacing alone, the low-temperature rate of expansion for a given spacing is dependent on imperfections and stacking disorder effects.
Educational Use Research
Learning Resource Type Article
Publisher Date 1960-09-17
Publisher Department General Electric Co., Ltd., Wembley, Eng.
Journal Nature
Volume Number 187
Organization General Electric Co., Ltd., Wembley, Eng.


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