Accession Number:

ADA025487

Title:

Coating Science and Technology

Descriptive Note:

Final rept. 2 Jan-30 Nov 1975

Corporate Author:

PENNSYLVANIA STATE UNIV STATE COLLEGE MATERIALS RESEARCH LAB

Personal Author(s):

Report Date:

1976-03-01

Pagination or Media Count:

88.0

Abstract:

The objective of this research was to develop a thorough understanding of films applied as coatings on materials transparent to 10.6 and 3-5 micrometer radiation. The approach included the preparation of films by sputtering or ion-plating, chemical and physical vapor deposition, and plasma polymerization. The materials studied were CdTe and Ge. New efforts to deposit tetrahedral carbon films were also included. Characterization techniques for the coatings included infrared spectrometry, laser-Raman spectrometry, ion scattering spectrometry, Auger electron spectrometry, scanning electron microscopy, x-ray diffraction, x-ray emission analysis, ellipsometry, and durability tests. The preparation of cadmium telluride films by sputter deposition was thoroughly investigated. Optical absorption studies were conducted with CdTe films deposited on KCl substrates. The oxidation of germanium films sputter-deposited on KCl substrates was investigated. These studies will be used to provide guidelines for the selection of the best materials, processes and process controls for the production of good optical coatings for infrared components.

Subject Categories:

  • Lasers and Masers
  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE