The measurement of the coefficient of thermal expansion of graphite artefacts
โ Scribed by E.A. Heintz
- Publisher
- Elsevier Science
- Year
- 1990
- Tongue
- English
- Weight
- 294 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0008-6223
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๐ SIMILAR VOLUMES
Graphite crystal expansions were derived as a function of' temperature usmg the theoretical relationships of Riley; the resultant equations provide reasonable tits to the measured lattice expansion data over the temperature range 300-3000%
The direct measurements of the principal thermal expansion coefficients were carried out for the specimens of pyrolytic graphite at temperatures between 50 and 55O"C, using an apparatus with high sensitivity. Resolving power of the apparatus was f 100 A. The c-axis thermal expansion coefficient was
The c-axis thermal expansion coefficient of SbCL-GIG i$ obtained from analysis of COO/) X-ray diffractograms for stages l-3. A decrease in thermal expansion coefficient with increasing stage is observed and it is related to a higher charge transfer for the higher stages than for the lower ones. The