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Title: Multiscale experimental characterization of coatings on ceramics: A case study of tungsten on SiC

Abstract

State-of-the-art transmission Kikuchi diffraction (TKD) and high-speed nano-indentation were combined with glow-discharge optical emission spectroscopy (GDOES), transmission electron microscopy (TEM) and micro-cantilever testing to characterize microstructures and mechanical properties of coatings on a ceramic substrate. The goal was to develop a multiscale experimental characterization method to assess the coating/substrate couple. A tungsten coated silicon carbide substrate was the system used for this development. The combination of GDOES, TEM and TKD enabled precise phase identification in the system, while TKD provided superior spatial resolution for phase identification. Here micro-cantilever tests were able to measure adhesion strength, with support from high-speed nano-indentation which enabled rapid modulus and hardness determination over relatively large areas.

Authors:
 [1]; ORCiD logo [2]; ORCiD logo [2]; ORCiD logo [2]
  1. Hefei Univ. of Technology, Hefei (China)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1505319
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Surface and Coatings Technology
Additional Journal Information:
Journal Volume: 367; Journal Issue: C; Journal ID: ISSN 0257-8972
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Coating; Multiscale characterization; Micro-mechanical testing; Transmission Kikuchi diffraction

Citation Formats

Li, Huaxin, Koyanagi, Takaaki, Hu, Xunxiang, and Katoh, Yutai. Multiscale experimental characterization of coatings on ceramics: A case study of tungsten on SiC. United States: N. p., 2019. Web. doi:10.1016/j.surfcoat.2019.03.040.
Li, Huaxin, Koyanagi, Takaaki, Hu, Xunxiang, & Katoh, Yutai. Multiscale experimental characterization of coatings on ceramics: A case study of tungsten on SiC. United States. doi:10.1016/j.surfcoat.2019.03.040.
Li, Huaxin, Koyanagi, Takaaki, Hu, Xunxiang, and Katoh, Yutai. Wed . "Multiscale experimental characterization of coatings on ceramics: A case study of tungsten on SiC". United States. doi:10.1016/j.surfcoat.2019.03.040.
@article{osti_1505319,
title = {Multiscale experimental characterization of coatings on ceramics: A case study of tungsten on SiC},
author = {Li, Huaxin and Koyanagi, Takaaki and Hu, Xunxiang and Katoh, Yutai},
abstractNote = {State-of-the-art transmission Kikuchi diffraction (TKD) and high-speed nano-indentation were combined with glow-discharge optical emission spectroscopy (GDOES), transmission electron microscopy (TEM) and micro-cantilever testing to characterize microstructures and mechanical properties of coatings on a ceramic substrate. The goal was to develop a multiscale experimental characterization method to assess the coating/substrate couple. A tungsten coated silicon carbide substrate was the system used for this development. The combination of GDOES, TEM and TKD enabled precise phase identification in the system, while TKD provided superior spatial resolution for phase identification. Here micro-cantilever tests were able to measure adhesion strength, with support from high-speed nano-indentation which enabled rapid modulus and hardness determination over relatively large areas.},
doi = {10.1016/j.surfcoat.2019.03.040},
journal = {Surface and Coatings Technology},
number = C,
volume = 367,
place = {United States},
year = {2019},
month = {3}
}

Journal Article:
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This content will become publicly available on March 20, 2020
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