A transmission electron microscopy study of the microstructure and interface of zirconia-based thermal barrier coatings

Y. Wang; Y. Bai; Q. Z. Yang; J. J. Tang; Y. H. Wang; K. Liu; S. W. Guo; Z. H. Han

doi:10.1016/j.jallcom.2014.09.058

A transmission electron microscopy study of the microstructure and interface of zirconia-based thermal barrier coatings

Y. Wang
, Y. Bai
, Q. Z. Yang
, J. J. Tang
, Y. H. Wang
, K. Liu
, S. W. Guo
, Z. H. Han

School of Life Science and Technology (SLST)

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

31 Scopus citations

Abstract

Yttria-stabilized zirconia (YSZ)-based thermal barrier coatings (TBCs) were deposited by supersonic atmospheric plasma spraying (SAPS) and conventional atmospheric plasma spraying (APS). Transmission electron microscopy (TEM) showed that the average height and width of columnar crystals of SAPS-coating were (0.71 ± 0.08) and (0.31 ± 0.04) μm, which was much smaller than that of APS-coating [(2.10 ± 0.10) and (0.48 ± 0.07) μm]. The preferential growth direction of SAPS-columnar crystals was [1 0 1] under rapid solidification. A 3-nm-thick amorphous film was discovered at the splat/splat interface for both APS-/SAPS-coatings.

Original language	English
Pages (from-to)	820-825
Number of pages	6
Journal	Journal of Alloys and Compounds
Volume	619
DOIs	https://doi.org/10.1016/j.jallcom.2014.09.058
State	Published - 15 Jan 2015

Keywords

Amorphous film
Columnar crystals
Interfaces
Thermal barrier coatings
Transmission electron microscopy

Access to Document

10.1016/j.jallcom.2014.09.058

Cite this

@article{2290174cf5544cf3b2ccfbb694c966eb,

title = "A transmission electron microscopy study of the microstructure and interface of zirconia-based thermal barrier coatings",

abstract = "Yttria-stabilized zirconia (YSZ)-based thermal barrier coatings (TBCs) were deposited by supersonic atmospheric plasma spraying (SAPS) and conventional atmospheric plasma spraying (APS). Transmission electron microscopy (TEM) showed that the average height and width of columnar crystals of SAPS-coating were (0.71 ± 0.08) and (0.31 ± 0.04) μm, which was much smaller than that of APS-coating [(2.10 ± 0.10) and (0.48 ± 0.07) μm]. The preferential growth direction of SAPS-columnar crystals was [1 0 1] under rapid solidification. A 3-nm-thick amorphous film was discovered at the splat/splat interface for both APS-/SAPS-coatings.",

keywords = "Amorphous film, Columnar crystals, Interfaces, Thermal barrier coatings, Transmission electron microscopy",

author = "Y. Wang and Y. Bai and Yang, \{Q. Z.\} and Tang, \{J. J.\} and Wang, \{Y. H.\} and K. Liu and Guo, \{S. W.\} and Han, \{Z. H.\}",

year = "2015",

month = jan,

day = "15",

doi = "10.1016/j.jallcom.2014.09.058",

language = "英语",

volume = "619",

pages = "820--825",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - A transmission electron microscopy study of the microstructure and interface of zirconia-based thermal barrier coatings

AU - Wang, Y.

AU - Bai, Y.

AU - Yang, Q. Z.

AU - Tang, J. J.

AU - Wang, Y. H.

AU - Liu, K.

AU - Guo, S. W.

AU - Han, Z. H.

PY - 2015/1/15

Y1 - 2015/1/15

N2 - Yttria-stabilized zirconia (YSZ)-based thermal barrier coatings (TBCs) were deposited by supersonic atmospheric plasma spraying (SAPS) and conventional atmospheric plasma spraying (APS). Transmission electron microscopy (TEM) showed that the average height and width of columnar crystals of SAPS-coating were (0.71 ± 0.08) and (0.31 ± 0.04) μm, which was much smaller than that of APS-coating [(2.10 ± 0.10) and (0.48 ± 0.07) μm]. The preferential growth direction of SAPS-columnar crystals was [1 0 1] under rapid solidification. A 3-nm-thick amorphous film was discovered at the splat/splat interface for both APS-/SAPS-coatings.

AB - Yttria-stabilized zirconia (YSZ)-based thermal barrier coatings (TBCs) were deposited by supersonic atmospheric plasma spraying (SAPS) and conventional atmospheric plasma spraying (APS). Transmission electron microscopy (TEM) showed that the average height and width of columnar crystals of SAPS-coating were (0.71 ± 0.08) and (0.31 ± 0.04) μm, which was much smaller than that of APS-coating [(2.10 ± 0.10) and (0.48 ± 0.07) μm]. The preferential growth direction of SAPS-columnar crystals was [1 0 1] under rapid solidification. A 3-nm-thick amorphous film was discovered at the splat/splat interface for both APS-/SAPS-coatings.

KW - Amorphous film

KW - Columnar crystals

KW - Interfaces

KW - Thermal barrier coatings

KW - Transmission electron microscopy

UR - https://www.scopus.com/pages/publications/84907833249

U2 - 10.1016/j.jallcom.2014.09.058

DO - 10.1016/j.jallcom.2014.09.058

M3 - 快报

AN - SCOPUS:84907833249

SN - 0925-8388

VL - 619

SP - 820

EP - 825

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

A transmission electron microscopy study of the microstructure and interface of zirconia-based thermal barrier coatings

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this