Hardness and Young's modulus of nanoporous EB-PVD YSZ coatings by nanoindentation

Byung Koog Jang; Hideaki Matsubara

doi:10.1016/j.jallcom.2005.02.064

Hardness and Young's modulus of nanoporous EB-PVD YSZ coatings by nanoindentation

Byung Koog Jang, Hideaki Matsubara

ENV - Environmental Studies for Advanced Society

Japan Fine Ceramics Center

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

33 Citations (Scopus)

Abstract

A nanoindentation technique for determining hardness and Young's moduli is applied to electron beam-physical vapor deposition (EB-PVD) ZrO₂-4 mol%Y₂O₃ coatings. The porosity of the coatings increased with increasing substrate rotation speed during deposition. The hardness and Young's modulus showed a significant dependence on the substrate rotation speed and measurements made on columnar structures were strongly anisotropic. The hardness and Young's modulus of the surface regions of the coatings is found to be higher than that of the side regions. The hardness and Young's moduli of the surface regions of the coatings have a nearly constant value of approximately 10 GPa and 230-250 GPa, respectively, whereas those of the side areas decreased with increasing substrate rotation speed.

Original language	English
Pages (from-to)	237-241
Number of pages	5
Journal	Journal of Alloys and Compounds
Volume	402
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jallcom.2005.02.064
Publication status	Published - 2005 Oct 27

Keywords

EB-PVD
Hardness
Nano indentation
Young's modulus
YSZ

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10.1016/j.jallcom.2005.02.064

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title = "Hardness and Young's modulus of nanoporous EB-PVD YSZ coatings by nanoindentation",

abstract = "A nanoindentation technique for determining hardness and Young's moduli is applied to electron beam-physical vapor deposition (EB-PVD) ZrO2-4 mol%Y2O3 coatings. The porosity of the coatings increased with increasing substrate rotation speed during deposition. The hardness and Young's modulus showed a significant dependence on the substrate rotation speed and measurements made on columnar structures were strongly anisotropic. The hardness and Young's modulus of the surface regions of the coatings is found to be higher than that of the side regions. The hardness and Young's moduli of the surface regions of the coatings have a nearly constant value of approximately 10 GPa and 230-250 GPa, respectively, whereas those of the side areas decreased with increasing substrate rotation speed.",

keywords = "EB-PVD, Hardness, Nano indentation, Young's modulus, YSZ",

author = "Jang, {Byung Koog} and Hideaki Matsubara",

note = "Funding Information: The authors acknowledge the financial support of the New Energy and Industrial Technology Development Organization (NEDO), Japan. ",

year = "2005",

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T1 - Hardness and Young's modulus of nanoporous EB-PVD YSZ coatings by nanoindentation

AU - Jang, Byung Koog

AU - Matsubara, Hideaki

N1 - Funding Information: The authors acknowledge the financial support of the New Energy and Industrial Technology Development Organization (NEDO), Japan.

PY - 2005/10/27

Y1 - 2005/10/27

N2 - A nanoindentation technique for determining hardness and Young's moduli is applied to electron beam-physical vapor deposition (EB-PVD) ZrO2-4 mol%Y2O3 coatings. The porosity of the coatings increased with increasing substrate rotation speed during deposition. The hardness and Young's modulus showed a significant dependence on the substrate rotation speed and measurements made on columnar structures were strongly anisotropic. The hardness and Young's modulus of the surface regions of the coatings is found to be higher than that of the side regions. The hardness and Young's moduli of the surface regions of the coatings have a nearly constant value of approximately 10 GPa and 230-250 GPa, respectively, whereas those of the side areas decreased with increasing substrate rotation speed.

AB - A nanoindentation technique for determining hardness and Young's moduli is applied to electron beam-physical vapor deposition (EB-PVD) ZrO2-4 mol%Y2O3 coatings. The porosity of the coatings increased with increasing substrate rotation speed during deposition. The hardness and Young's modulus showed a significant dependence on the substrate rotation speed and measurements made on columnar structures were strongly anisotropic. The hardness and Young's modulus of the surface regions of the coatings is found to be higher than that of the side regions. The hardness and Young's moduli of the surface regions of the coatings have a nearly constant value of approximately 10 GPa and 230-250 GPa, respectively, whereas those of the side areas decreased with increasing substrate rotation speed.

KW - EB-PVD

KW - Hardness

KW - Nano indentation

KW - Young's modulus

KW - YSZ

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SN - 0925-8388

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JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - 1-2

ER -

Hardness and Young's modulus of nanoporous EB-PVD YSZ coatings by nanoindentation

Abstract

Keywords

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