Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Thermal conductivity and interface resistance of particle-filled silicone resin

Technical Report ·
OSTI ID:6838565

The thermal conductivity of silicone resin containing various amounts of Al/sub 2/O/sub 3/, MgO, BN and copper particles was measured with a Colora Thermoconductometer. Samples consisted of aluminum and alumina discs bonded with unfilled or particle-filled resin. Most particle loaded samples displayed a conductivity that declined with decreasing bond thickness. This is due to a measurable interface thermal resistance which probably results from the increased viscosity and reduced wetting ability of particle-loaded resin. Microscopic examination of bond cross sections revealed such areas of incomplete contact. No interface resistance was observed for unfilled resin where wetting appeared complete.

Research Organization:
BDM Corp., Albuquerque, NM (USA); Sandia National Labs., Albuquerque, NM (USA)
DOE Contract Number:
AC04-76DP00789
OSTI ID:
6838565
Report Number(s):
SAND-83-2375C; CONF-840816-10; ON: DE84011681
Country of Publication:
United States
Language:
English