Microstructure of nanoporous yttria-stabilized zirconia films fabricated by EB-PVD

Byung Koog Jang; Hideaki Matsubara

doi:10.1016/j.jeurceramsoc.2005.03.248

Microstructure of nanoporous yttria-stabilized zirconia films fabricated by EB-PVD

Byung Koog Jang, Hideaki Matsubara

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

40 Citations (Scopus)

Abstract

Microstructures of ZrO₂-4 mol% Y₂O₃ coating layers fabricated by EB-PVD are characterized. Coating layers are found to consist of porous columnar grains with a feather-like structure containing evenly dispersed nano-sized gaps. Nanopores less than 50 nm in diameter could also be observed within columnar grains. The columnar grain size and column width of the coating layers increased with increasing coating thickness and substrate rotation speed. The porosity of the coating layers also shows increases with increasing substrate rotation speed. Specimens rotated at 1 rpm are found to contain wavy or scalloped columnar grains. Specimens rotated at higher speeds are found to consist of straight columns with a banded structure.

Original language	English
Pages (from-to)	1585-1590
Number of pages	6
Journal	Journal of the European Ceramic Society
Volume	26
Issue number	9
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2005.03.248
Publication status	Published - 2006
Externally published	Yes

All Science Journal Classification (ASJC) codes

Ceramics and Composites
Materials Chemistry

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10.1016/j.jeurceramsoc.2005.03.248

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title = "Microstructure of nanoporous yttria-stabilized zirconia films fabricated by EB-PVD",

abstract = "Microstructures of ZrO2-4 mol% Y2O3 coating layers fabricated by EB-PVD are characterized. Coating layers are found to consist of porous columnar grains with a feather-like structure containing evenly dispersed nano-sized gaps. Nanopores less than 50 nm in diameter could also be observed within columnar grains. The columnar grain size and column width of the coating layers increased with increasing coating thickness and substrate rotation speed. The porosity of the coating layers also shows increases with increasing substrate rotation speed. Specimens rotated at 1 rpm are found to contain wavy or scalloped columnar grains. Specimens rotated at higher speeds are found to consist of straight columns with a banded structure.",

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

note = "Funding Information: This work was carried out with financial support from the New Energy and Industrial Technology Development Organization (NEDO), Japan. ",

year = "2006",

doi = "10.1016/j.jeurceramsoc.2005.03.248",

language = "English",

volume = "26",

pages = "1585--1590",

journal = "Journal of the European Ceramic Society",

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publisher = "Elsevier BV",

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T1 - Microstructure of nanoporous yttria-stabilized zirconia films fabricated by EB-PVD

AU - Jang, Byung Koog

AU - Matsubara, Hideaki

N1 - Funding Information: This work was carried out with financial support from the New Energy and Industrial Technology Development Organization (NEDO), Japan.

PY - 2006

Y1 - 2006

N2 - Microstructures of ZrO2-4 mol% Y2O3 coating layers fabricated by EB-PVD are characterized. Coating layers are found to consist of porous columnar grains with a feather-like structure containing evenly dispersed nano-sized gaps. Nanopores less than 50 nm in diameter could also be observed within columnar grains. The columnar grain size and column width of the coating layers increased with increasing coating thickness and substrate rotation speed. The porosity of the coating layers also shows increases with increasing substrate rotation speed. Specimens rotated at 1 rpm are found to contain wavy or scalloped columnar grains. Specimens rotated at higher speeds are found to consist of straight columns with a banded structure.

AB - Microstructures of ZrO2-4 mol% Y2O3 coating layers fabricated by EB-PVD are characterized. Coating layers are found to consist of porous columnar grains with a feather-like structure containing evenly dispersed nano-sized gaps. Nanopores less than 50 nm in diameter could also be observed within columnar grains. The columnar grain size and column width of the coating layers increased with increasing coating thickness and substrate rotation speed. The porosity of the coating layers also shows increases with increasing substrate rotation speed. Specimens rotated at 1 rpm are found to contain wavy or scalloped columnar grains. Specimens rotated at higher speeds are found to consist of straight columns with a banded structure.

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JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

IS - 9

ER -

Microstructure of nanoporous yttria-stabilized zirconia films fabricated by EB-PVD

Abstract

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