Graphite thermal expansion reference for high temperatureThe design requirements of the aerospace and high-temperature nuclear reactor industries necessitate reliable thermal expansion data for graphite and other carbonaceous materials. The feasibility of an acceptable reference for calibration of expansion measuring systems that operate in carbon-rich atmospheres at temperatures ranging to 2500 C is the prime subject of this work. Present-day graphite technology provides acceptable materials for stable, reproducible references, as reflected by some of the candidate materials. The repeatability for a single specimen in a given expansion measuring system was found to be plus or minus 1%, while the combined results of several tests made on a number of samples fell within a plus or minus 2.5% band.
Document ID
19740057104
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Gaal, P. S. (Westinghouse Astronuclear Laboratory Pittsburgh, Pa., United States)
Date Acquired
August 7, 2013
Publication Date
January 1, 1974
Subject Category
Materials, Nonmetallic
Meeting Information
Meeting: International Symposium on Thermal Expansion of Solids