Mechanism of density decrease in heat-treated glass-like carbon (GC)
Conference
·
OSTI ID:5508652
Measurements were made of the density decrease (pycnometric), mass loss, hydrogen loss, dimensional increase and thermal expansion (dilatomeric) of glassy carbon heated in the range 1000/sup 0/C to 2800/sup 0/C or stressed (hydrostatic pressures) to 250,000 psi. The irreversibility density decrease is attributed to thermal expansion mismatch (..cap alpha../sub c/ >> ..cap alpha../sub a/) and microscopic fracture.
- Research Organization:
- Lawrence Berkeley Lab., CA (USA); Argonne National Lab., IL (USA)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5508652
- Report Number(s):
- LBL-10623; CONF-810604-9; ON: DE82011195
- Resource Relation:
- Conference: 15. biennial conference on carbon, Philadelphia, PA, USA, 22 Jun 1981
- Country of Publication:
- United States
- Language:
- English
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