Structural and high temperature properties of boron pyrolytic graphite
โ Scribed by W.V. Kotlensky; H.E. Martens
- Publisher
- Elsevier Science
- Year
- 1964
- Tongue
- English
- Weight
- 201 KB
- Volume
- 2
- Category
- Article
- ISSN
- 0008-6223
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๐ SIMILAR VOLUMES
The thermal diffusivity of three pyrolytic graphites was measured using the modulating electron beam method over the temperature range from 1300ยฐC to 1900ยฐC. One of the specimens was as-deposited at 2500X, and the others were the same heattreated at 3000ยฐC after deposition. The mean free path of pho
During the first stage, ordering occurred without decrease in L,. The second stage of ordering was associated with a sharp increase in L, and preferred orientation, and with changes in microstructure. The effective activation energy was found to be 26Of20 kcaljmole for both stages. For some pyrolyti