Materials characterization studies for single point machining of cooled optics
Objective was to determine the physical properties of new materials being developed for high energy laser mirrors, especially CVD prepared silicon (Si) and silicon carbide (SiC). The properties investigated were those considered important in considering single point machining of the materials. A list of the materials studied and values for the various properties studied are given. This report centers on the development of a simplified model which can account for the mechanism that is responsible for the initial growth of lateral cracks during the machining of ceramic surfaces by a single point machining indentation mechanism, assuming a state of plastic-elastic residual stress beneath the indentation. Emphasis is placed on the interpretation of indentation damage.
- Research Organization:
- Dayton Univ., OH (USA). Ceramic and Glass Labs. Research Inst.; Lawrence Livermore National Lab., CA (USA)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 6545955
- Report Number(s):
- UCRL-15909; ON: DE87009569
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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