Inexpensive technique for estimating the thermal conductivity of CVD diamond from the optical absorption
Conference
·
OSTI ID:230114
- AT&T Bell Labs., Murray Hill, NJ (United States)
The relationship between thermal conductivity and optical absorption has been investigated for over 60 samples of CVD diamond grown in 10 different laboratories. A simple and inexpensive apparatus is described to enable accurate and quick measurement of the optical absorption coefficient {alpha} averaged over the visible spectrum. The thermal conductivities K{parallel} and K {parallel} (with heat flow either parallel or perpendicular to the plane of the sample) were measured by methods described previously -- steady state and laser flash, respectively. The observed correlation between K{parallel} or K{perpendicular} and {alpha} can be used to obtain estimates of K{parallel} or K {perpendicular} (within uncertainties of {approximately} {plus_minus} 3 Wcm{sup -1} K {sup -1}) from a measurement of the optical absorption.
- OSTI ID:
- 230114
- Report Number(s):
- CONF-950840--
- Country of Publication:
- United States
- Language:
- English
Similar Records
Measurements of thermal conductivity and thermal diffusivity of CVD diamond
Round robin thermal conductivity measurements on CVD diamond
Measurement of thermal conductivity of polycrystalline CVD diamond by laser-induced transient grating technique
Journal Article
·
Sat Feb 28 23:00:00 EST 1998
· International Journal of Thermophysics
·
OSTI ID:675553
Round robin thermal conductivity measurements on CVD diamond
Conference
·
Sat Dec 30 23:00:00 EST 1995
·
OSTI ID:230127
Measurement of thermal conductivity of polycrystalline CVD diamond by laser-induced transient grating technique
Journal Article
·
Tue Apr 30 00:00:00 EDT 2002
· Quantum Electronics (Woodbury, N.Y.)
·
OSTI ID:21454780