Issue |
J. Eur. Opt. Soc.-Rapid Publ.
Volume 6, 2011
|
|
---|---|---|
Article Number | 11001 | |
Number of page(s) | 16 | |
DOI | https://doi.org/10.2971/jeos.2011.11001 | |
Published online | 22 February 2011 |
Regular papers
Evaluating subsurface damage in optical glasses
1
Fine Optical Engineering Research Center, Chengdu 610041, China
2
Department of Machine Intelligence & Systems Engineering, Akita Prefectural University, Yurihonjo 015-0055, Japan
3
School of Electronics & Information, Sichuan University, Chengdu 610065, China
4
Department of Mechanical & Electrical Engineering, Xiamen University, Xiamen 361005, China
Received:
13
October
2010
Hard brittle materials (e.g. glasses and ceramics) increasingly appeal to general interests because of their excellent physical, mechanical and chemical properties such as super hardness and strength at extreme temperature and chemical stability. The precision manufacturing of these materials is primarily achieved by grinding and polishing, which generally employs abrasives to wear the materials. With this manufacturing technology, the materials are removed due principally to the fracture of brittle materials, which will leave a cracked layer on the surface of manufactured components, namely subsurface damage (SSD). The subsurface damage affects the strength, performance and lifetime of components. As a result, investigation into the subsurface damage is needed. A host of characterizing techniques have been developed during the past several decades. These techniques based on different mechanisms provide researchers with invaluable information on the subsurface damage in various materials. In this article the typical SSD evaluation techniques are reviewed, which are regularly used in optical workshops or laboratories.
Key words: fused silica / grinding and polishing / optical manufacturing / destructive evaluation / non-destructive evaluation
© The Author(s) 2011. All rights reserved.
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