Ultraprecision cutting of single-crystal calcium fluoride for fabricating micro flow cell for protein structure analysis

Ryo Komiya, Tetsunari Kimura, Minoru Kubo, Jiwang Yan

Research output: Contribution to conferencePaperpeer-review

Abstract

In infrared spectroscopic analysis of the structures of protein crystals, a micro-flow cell made of single crystal calcium fluoride (CaF2) is needed. In this research, fly cutting of micro grooves on a CaF2 substrate was conducted using a single-crystal diamond tool. The effects of cutting direction, up/down cut, and tool rake angle on ductile-brittle transition of cutting behavior were investigated. Based on the experimental results and analysis, optimal cutting conditions were selected which enabled ductile machining of CaF2. As a result, a 10 μm deep micro-flow cell was successfully fabricated with surface roughness of 2.4 nmRa. The availability of the flow cell was confirmed by visible absorption spectroscopy of protein.

Original languageEnglish
Publication statusPublished - 2015 Oct 18
Event8th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2015 - Kyoto, Japan
Duration: 2015 Oct 182015 Oct 22

Other

Other8th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2015
Country/TerritoryJapan
CityKyoto
Period15/10/1815/10/22

Keywords

  • Calcium fluoride
  • Ductile machining
  • Flow cell
  • Micro machining
  • Ultraprecision cutting

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering

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