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

Li, Huaxin; Koyanagi, Takaaki; Hu, Xunxiang; Katoh, Yutai

doi:10.1016/j.surfcoat.2019.03.040

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

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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:

Li, Huaxin ^[1];

^[2];

^[2]

Hefei Univ. of Technology, Hefei (China)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Publication Date:: Wed Mar 20 00:00:00 EDT 2019

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Fusion Energy Sciences (FES)

OSTI Identifier:: 1505319

Alternate Identifier(s):: OSTI ID: 1547611

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.

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                    Li, Huaxin, Koyanagi, Takaaki, Hu, Xunxiang, & Katoh, Yutai. Multiscale experimental characterization of coatings on ceramics: A case study of tungsten on SiC.  United States.  https://doi.org/10.1016/j.surfcoat.2019.03.040

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                    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.  https://doi.org/10.1016/j.surfcoat.2019.03.040.  https://www.osti.gov/servlets/purl/1505319.

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@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         = {Wed Mar 20 00:00:00 EDT 2019},

  month        = {Wed Mar 20 00:00:00 EDT 2019}

}

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