Experimental analysis of the surface integrity of single-crystal calcium fluoride caused by ultra-precision turning

Shunya Azami, Kudo Hiroshi, Takasumi Tanabe, Jiwang Yan, Yasuhiro Kakinuma

研究成果: Conference article査読

6 被引用数 (Scopus)

抄録

To achieve maximally efficient signal processing, an electrical signal processing circuit needs to be replaced with an optical one. Optical micro-resonators, storing light at certain spots, are essential for optical signal processing. Single-crystal Calcium Fluoride (CaF2) is the most suitable material for highly efficient optical micro-resonators, and a resonator made of CaF2 can be manufactured by ultra-precision machining. However, the performance of such optical micro-resonators depends on its surface integrity. In this study, the relation between the crystal anisotropy and surface integrity after ultra-precision cutting was investigated. The most difficult point in the cylindrical turning of a crystalline material is that the crystalline plane and the cutting direction constantly vary. We analyzed crack initiation and surface integrity of the entire machined surface from the perspective of slip system and cleavage. Subsurface damage was also observed by using the TEM and X-ray analyzers for more efficient manufacturing of optical micro-resonators.

本文言語English
ページ(範囲)225-229
ページ数5
ジャーナルProcedia CIRP
13
DOI
出版ステータスPublished - 2014
イベント2nd CIRP Conference on Surface Integrity, CSI 2014 - Nottingham, United Kingdom
継続期間: 2014 5 282014 5 30

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering

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