Comprehensive microstructural characterization and predictive property modeling of plasma-sprayed zirconia coatings

A. Kulkarni; Z. Wang; T. Nakamura; S. Sampath; A. Goland; H. Herman; J. Allen; J. Ilavsky; G. Long; J. Frahm; R. W. Steinbrech

doi:10.1016/S1359-6454(03)00030-2

Comprehensive microstructural characterization and predictive property modeling of plasma-sprayed zirconia coatings

A. Kulkarni
, Z. Wang
, T. Nakamura
, S. Sampath
, A. Goland
, H. Herman
, J. Allen
, J. Ilavsky
, G. Long
, J. Frahm
, R. W. Steinbrech

Stony Brook University
National Institute of Standards and Technology
University of Maryland, College Park
Jülich Research Centre

Research output: Contribution to journal › Article › peer-review

257 Scopus citations

Abstract

Quantitative microstructure characterization to better understand processing-microstructure-property correlations is of considerable interest in plasma sprayed coating research. This paper quantifies, by means of small-angle neutron scattering (SANS) data, microstructure (porosity, opening dimensions, orientation and morphologies) in plasma sprayed partially-stabilized zirconia (PSZ) coatings, primarily used as thermal barrier coatings. We report on the investigation of the influence of feedstock characteristics on microstructure and establish its influence on the resultant thermal and mechanical properties. The microstructural parameters determined by SANS studies are then assembled into a preliminary model to develop a predictive capability for estimating the properties of these coatings. Thermal conductivity and elastic modulus were predicted using finite element analysis and ultimately compared to experimental values.

Original language	English
Pages (from-to)	2457-2475
Number of pages	19
Journal	Acta Materialia
Volume	51
Issue number	9
DOIs	https://doi.org/10.1016/S1359-6454(03)00030-2
State	Published - May 23 2003

Keywords

Elastic modulus
Finite element model
Plasma sprayed thermal barrier coatings
Porosity
Small angle neutron scattering
Thermal conductivity

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10.1016/S1359-6454(03)00030-2

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title = "Comprehensive microstructural characterization and predictive property modeling of plasma-sprayed zirconia coatings",

abstract = "Quantitative microstructure characterization to better understand processing-microstructure-property correlations is of considerable interest in plasma sprayed coating research. This paper quantifies, by means of small-angle neutron scattering (SANS) data, microstructure (porosity, opening dimensions, orientation and morphologies) in plasma sprayed partially-stabilized zirconia (PSZ) coatings, primarily used as thermal barrier coatings. We report on the investigation of the influence of feedstock characteristics on microstructure and establish its influence on the resultant thermal and mechanical properties. The microstructural parameters determined by SANS studies are then assembled into a preliminary model to develop a predictive capability for estimating the properties of these coatings. Thermal conductivity and elastic modulus were predicted using finite element analysis and ultimately compared to experimental values.",

keywords = "Elastic modulus, Finite element model, Plasma sprayed thermal barrier coatings, Porosity, Small angle neutron scattering, Thermal conductivity",

author = "A. Kulkarni and Z. Wang and T. Nakamura and S. Sampath and A. Goland and H. Herman and J. Allen and J. Ilavsky and G. Long and J. Frahm and Steinbrech, \{R. W.\}",

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doi = "10.1016/S1359-6454(03)00030-2",

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TY - JOUR

T1 - Comprehensive microstructural characterization and predictive property modeling of plasma-sprayed zirconia coatings

AU - Kulkarni, A.

AU - Wang, Z.

AU - Nakamura, T.

AU - Sampath, S.

AU - Goland, A.

AU - Herman, H.

AU - Allen, J.

AU - Ilavsky, J.

AU - Long, G.

AU - Frahm, J.

AU - Steinbrech, R. W.

PY - 2003/5/23

Y1 - 2003/5/23

N2 - Quantitative microstructure characterization to better understand processing-microstructure-property correlations is of considerable interest in plasma sprayed coating research. This paper quantifies, by means of small-angle neutron scattering (SANS) data, microstructure (porosity, opening dimensions, orientation and morphologies) in plasma sprayed partially-stabilized zirconia (PSZ) coatings, primarily used as thermal barrier coatings. We report on the investigation of the influence of feedstock characteristics on microstructure and establish its influence on the resultant thermal and mechanical properties. The microstructural parameters determined by SANS studies are then assembled into a preliminary model to develop a predictive capability for estimating the properties of these coatings. Thermal conductivity and elastic modulus were predicted using finite element analysis and ultimately compared to experimental values.

AB - Quantitative microstructure characterization to better understand processing-microstructure-property correlations is of considerable interest in plasma sprayed coating research. This paper quantifies, by means of small-angle neutron scattering (SANS) data, microstructure (porosity, opening dimensions, orientation and morphologies) in plasma sprayed partially-stabilized zirconia (PSZ) coatings, primarily used as thermal barrier coatings. We report on the investigation of the influence of feedstock characteristics on microstructure and establish its influence on the resultant thermal and mechanical properties. The microstructural parameters determined by SANS studies are then assembled into a preliminary model to develop a predictive capability for estimating the properties of these coatings. Thermal conductivity and elastic modulus were predicted using finite element analysis and ultimately compared to experimental values.

KW - Elastic modulus

KW - Finite element model

KW - Plasma sprayed thermal barrier coatings

KW - Porosity

KW - Small angle neutron scattering

KW - Thermal conductivity

UR - https://www.scopus.com/pages/publications/0037739647

U2 - 10.1016/S1359-6454(03)00030-2

DO - 10.1016/S1359-6454(03)00030-2

M3 - Article

AN - SCOPUS:0037739647

SN - 1359-6454

VL - 51

SP - 2457

EP - 2475

JO - Acta Materialia

JF - Acta Materialia

IS - 9

ER -

Comprehensive microstructural characterization and predictive property modeling of plasma-sprayed zirconia coatings

Abstract

Keywords

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