Thermal conductivity and electrical resistivity of two types of ATJ-S graphite to 3500° K

✍ Scribed by S.G. Bapat

• Publisher: Elsevier Science
• Year: 1973
• Tongue: English
• Weight: 277 KB
• Volume: 11
• Category: Article
• ISSN: 0008-6223
• DOI: 10.1016/0008-6223(73)90310-2

✦ Synopsis

Thermal conductivity and electrical resistivity in the with-grain direction of two types of ATJ-S graphite, from 300°K up to 3500°K are reported. Above 500"K, the thermal conductivity appears to follow a 7-l type function, which is characteristic of Umklapp thermal resistivity processes. The results are analyzed in terms of relative first order contributions of the lattice and electronic components of the thermal conductivity. At high temperatures, our results are at variance with some literature that indicate a 'strorxlv' decreasine thermal conductivity or an essentially 'temperature independent' ther%al conductiv&.