Optical properties of Ti3SiC2 and Ti4AlN3

Authors

S. Li, Virginia Commonwealth University, Royal Institute of Technology, Uppsala UniversityFollow
R. Ahuja, Royal Institute of Technology, Uppsala University
M. W. Barsoum, Drexel University
Puru Jena, Virginia Commonwealth UniversityFollow
B. Johansson, Royal Institute of Technology, Uppsala University

Document Type

Article

Original Publication Date

2008

Journal/Book/Conference Title

Applied Physics Letters

Volume

92

Issue

22

DOI of Original Publication

10.1063/1.2938862

Comments

Originally published at http://dx.doi.org/10.1063/1.2938862

Date of Submission

April 2015

Abstract

The dielectric functions of the MAX phases, Ti3SiC2 and Ti4AlN3, have been determined from first principles calculations. We compared the dielectric functions and the reflectivityspectra of Ti3SiC2 and Ti4AlN3 with those of TiC and TiN. The optical spectra were analyzed by means of the electronic structure, which provides theoretical understanding of the conduction mechanism of these two phases. We found that Ti4AlN3 can be used to avoid solar heating and also increase the radiative cooling due to the increased thermal emittance as compared to TiN. Ti4AlN3 can therefore be a candidate coating material for temperature control of space vehicles.

Rights

Li, S., Ahuja, R., Barsoum, M.W., et al. Optical properties of Ti3SiC2 and Ti4AlN3. Applied Physics Letters, 92, 221907 (2008). Copyright © 2008 AIP Publishing LLC.

Is Part Of

VCU Physics Publications