Development of Chemical Conversion Coating for Blackening of a Grade of Stainless Steel Useful for Fabrication of Optical Devices

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Authors

  • Instruments Research and Development Establishment (IRDE), DRDO, Dehradun – 248008, Uttarakhand ,IN
  • ,IN
  • Instruments Research and Development Establishment (IRDE), DRDO, Dehradun – 248008, Uttarakhand ,IN
  • Defence Institute of Physiology and Allied Sciences (DIPAS), DRDO, Delhi - 110054 ,IN
  • Instruments Research and Development Establishment (IRDE), DRDO, Dehradun – 248008, Uttarakhand ,IN

DOI:

https://doi.org/10.18311/jsst/2016/8548

Keywords:

Black Oxide Coating, Characterizations, Opto-Mechanical Components, Stainless Steel
Surface Chemistry

Abstract

An improved chemical conversion coating process for blackening of a specific type of stainless steel has been developed. In this process a new optimized bath compositions and operating procedures were set-up by using different trial & error methods to get the desired coating. The technique is also developed for the simplicity, and economical aspect than other techniques. Characterization of coating is done in terms of morphology, optical, hardness by using SEM, Spectrophotometer, and Indentation Hardness methods. Sea-water and temperature variations effects on the coated surface are also studied.

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Author Biographies

Lakhi Ram Chauhan, Instruments Research and Development Establishment (IRDE), DRDO, Dehradun – 248008, Uttarakhand

Chemical Technology Lab, Scientist 'E'

Majar Singh

Chemical Technology Lab, Scientist 'E'

Published

2017-04-05

How to Cite

Chauhan, L. R., Singh, M., Bajpai, J. K., Misra, K., & Agarwal, A. (2017). Development of Chemical Conversion Coating for Blackening of a Grade of Stainless Steel Useful for Fabrication of Optical Devices. Journal of Surface Science and Technology, 32(3-4), 99–106. https://doi.org/10.18311/jsst/2016/8548
Received 2016-12-07
Accepted 2017-01-19
Published 2017-04-05

 

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