Processing-structure-property relationships in electron beam physical vapor deposited yttria stabilized zirconia coatings

Rao, D Srinivasa; Valleti, Krishna; Joshi, S V; Janardhan, G Ranga

doi:10.1116/1.3563600

Title: Processing-structure-property relationships in electron beam physical vapor deposited yttria stabilized zirconia coatings

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Abstract

The physical and mechanical properties of yttria stabilized zirconia (YSZ) coatings deposited by the electron beam physical vapor deposition technique have been investigated by varying the key process variables such as vapor incidence angle and sample rotation speed. The tetragonal zirconia coatings formed under varying process conditions employed were found to have widely different surface and cross-sectional morphologies. The porosity, phase composition, planar orientation, hardness, adhesion, and surface residual stresses in the coated specimens were comprehensively evaluated to develop a correlation with the process variables. Under transverse scratch test conditions, the YSZ coatings exhibited two different crack formation modes, depending on the magnitude of residual stress. The influence of processing conditions on the coating deposition rate, column orientation angle, and adhesion strength has been established. Key relationships between porosity, hardness, and adhesion are also presented.

Authors:

Rao, D Srinivasa; Valleti, Krishna; Joshi, S V; Janardhan, G Ranga ^[1]

International Advanced Research Centre for Powder Metallurgy and New Materials (ARCI), Balapur (PO), Hyderabad 500 005 (India)

Publication Date:: Sun May 15 00:00:00 EDT 2011

OSTI Identifier:: 22054027

Resource Type:: Journal Article

Journal Name:: Journal of Vacuum Science and Technology. A, International Journal Devoted to Vacuum, Surfaces, and Films

Additional Journal Information:: Journal Volume: 29; Journal Issue: 3; Other Information: (c) 2011 American Vacuum Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1553-1813

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ADHESION; CRACK PROPAGATION; ELECTRON BEAMS; GRAIN ORIENTATION; HARDNESS; INCIDENCE ANGLE; MORPHOLOGY; PHYSICAL VAPOR DEPOSITION; POROSITY; RESIDUAL STRESSES; YTTRIUM; ZIRCONIUM

Citation Formats


                    Rao, D Srinivasa, Valleti, Krishna, Joshi, S V, Janardhan, G Ranga, and Department of Mechanical Engineering, JNTUH College of Engineering, JNT University, Hyderabad 500 085. Processing-structure-property relationships in electron beam physical vapor deposited yttria stabilized zirconia coatings.  United States: N. p., 2011. 
        Web.  doi:10.1116/1.3563600.

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                    Rao, D Srinivasa, Valleti, Krishna, Joshi, S V, Janardhan, G Ranga, & Department of Mechanical Engineering, JNTUH College of Engineering, JNT University, Hyderabad 500 085. Processing-structure-property relationships in electron beam physical vapor deposited yttria stabilized zirconia coatings.  United States.  https://doi.org/10.1116/1.3563600

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                    Rao, D Srinivasa, Valleti, Krishna, Joshi, S V, Janardhan, G Ranga, and Department of Mechanical Engineering, JNTUH College of Engineering, JNT University, Hyderabad 500 085. 2011.  
        "Processing-structure-property relationships in electron beam physical vapor deposited yttria stabilized zirconia coatings".  United States.  https://doi.org/10.1116/1.3563600.

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@article{osti_22054027,

  title        = {Processing-structure-property relationships in electron beam physical vapor deposited yttria stabilized zirconia coatings},

  author       = {Rao, D Srinivasa and Valleti, Krishna and Joshi, S V and Janardhan, G Ranga and Department of Mechanical Engineering, JNTUH College of Engineering, JNT University, Hyderabad 500 085},

  abstractNote = {The physical and mechanical properties of yttria stabilized zirconia (YSZ) coatings deposited by the electron beam physical vapor deposition technique have been investigated by varying the key process variables such as vapor incidence angle and sample rotation speed. The tetragonal zirconia coatings formed under varying process conditions employed were found to have widely different surface and cross-sectional morphologies. The porosity, phase composition, planar orientation, hardness, adhesion, and surface residual stresses in the coated specimens were comprehensively evaluated to develop a correlation with the process variables. Under transverse scratch test conditions, the YSZ coatings exhibited two different crack formation modes, depending on the magnitude of residual stress. The influence of processing conditions on the coating deposition rate, column orientation angle, and adhesion strength has been established. Key relationships between porosity, hardness, and adhesion are also presented.},

  doi          = {10.1116/1.3563600},

  url          = {https://www.osti.gov/biblio/22054027},
  journal      = {Journal of Vacuum Science and Technology. A, International Journal Devoted to Vacuum, Surfaces, and Films},

  issn         = {1553-1813},

  number       = 3,

  volume       = 29,

  place        = {United States},

  year         = {Sun May 15 00:00:00 EDT 2011},

  month        = {Sun May 15 00:00:00 EDT 2011}

}

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