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Thermal Diffusivity of Six Igneous Rocks At Elevated Temperatures and Reduced Pressures.
NTIS: PB 237 030 :33 pages
The thermal diffusivity above 298 k, up to 400 k and at pressures from ambient down to 10-10 torr was measured for the following six igneous rock types: tholeitic basalt, obsidian, rhyolite, granodiorite, gabbro, and dunite. The thermal diffusivity data were obtained by the laser flash method. Extreme values range from a low of 5.3 X 10-3 cm2/sec for rhyolite at 383 k and 2 x 10-7 torr to a high of 13.4 X 10-3 cm2/sec for dunite at 298 k and 760 torr. Data are also included on a commercial fused silica, which was used as a standard.
IH; Report of Investigations
NTIS Accession No.
NTIS: PB 237 030
Page last reviewed: September 2, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division