Development of a device for the measurement of the thermal expansion of artificial graphite materials at high temperature

A device that simultaneously measures the dimensional changes of artificial graphite due to thermal expansion by two methods, contact and non-contact, has been developed. The contact method uses high-density isotropic graphite as a reference material, measurement jigs and a heater in electric furnac...

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Bibliographic Details
Published in:Carbon (New York) 2015-11, Vol.93, p.1079-1079
Main Author: Iwashita, Norio
Format: Article
Language:English
Subjects:
Carbon
Contact
Devices
Dimensional changes
Electric contacts
Electric furnaces
Graphite
Thermal expansion
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Summary:A device that simultaneously measures the dimensional changes of artificial graphite due to thermal expansion by two methods, contact and non-contact, has been developed. The contact method uses high-density isotropic graphite as a reference material, measurement jigs and a heater in electric furnace. The latter used a laser micro-gauge. An accurate measurement of the linear thermal expansion and the coefficient of thermal expansion at temperatures as high as 2400°C could be made by the device using these two complementary methods. [TANSO 2015 (No. 268), 135–7.]
ISSN:0008-6223
1873-3891
DOI:10.1016/j.carbon.2015.07.018