Etching study for the MC2980 glass ceramic preform
Technical Report
·
OSTI ID:6427233
An investigation is presented of the variables of the etching process for the MC2980 glass ceramic preform to determine their effect upon the etching rate. These variables include: type of agitation on the preform, temperature of the etchant, duration of etch, surface finish of preform, depletion of etchant, evaporation of etchant, and interruption of etching cycle. The etching rate varied from 0.18 g/min at room temperature to 1.31 g/minute at 80/sup 0/C. A constant etching rate, at elevated temperatures using the same batch of etchant, could not be maintained because of evaporation losses and the depletion of the etchant. The vapor-honed surface layer of the preform was removed after 10 min of etching at room temperature and only 2 min of etching at 80/sup 0/C.
- Research Organization:
- Sandia Labs., Albuquerque, NM (USA)
- OSTI ID:
- 6427233
- Report Number(s):
- SAND-78-1295
- Country of Publication:
- United States
- Language:
- English
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