Fractal characteristics of apparent pores present on polished cross sections of alumina coatings prepared by laser-assisted flame hybrid spraying

J. F. Li; L. Li; F. H. Stott

doi:10.1016/j.tsf.2003.11.125

Fractal characteristics of apparent pores present on polished cross sections of alumina coatings prepared by laser-assisted flame hybrid spraying

J. F. Li, L. Li, F. H. Stott

Mechanical and Aerospace Engineering

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

Abstract

A novel laser-assisted flame hybrid spraying process has been developed to deposit alumina coatings on an alumina-based refractory. In this paper, polished cross sections of the alumina coatings, prepared using various process parameters, have been investigated by fractal analysis using an optical microscopy image analysis method. It was evident that both the density correlation functions and the perimeter-area relationships of the apparent pores present on the polished cross sections of the coatings statistically followed fractal laws in nature. Both fractal dimensions, estimated by the density correlation function, and perimeter-area relationships, decreased with increases in laser irradiation intensity. The changes in fractal dimensions suggest that the mechanism of coating deposition have been changed to some extent by the laser treatment. © 2003 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	229-233
Number of pages	4
Journal	Thin Solid Films
Volume	453-454
DOIs	https://doi.org/10.1016/j.tsf.2003.11.125
Publication status	Published - 1 Apr 2004

Keywords

Aluminium oxide
Coatings
Fractals
Laser-assisted flame hybrid spraying

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10.1016/j.tsf.2003.11.125

LPRC: Laser Processing Research Centre Impact
Allegre, O. (PI), Crosby, D. (PI), Domingos, M. (PI), Francis, J. (PI), Gillen, D. (PI), Guo, W. (PI), Li, L. (PI), Mativenga, P. (PI), Rogers, B. D. (PI), Whitehead, D. (PI), Wilson, D. (PI), Zhong, S. (PI), Mirhosseini, N. (Researcher), Ouyang, J. (Researcher), Huang, Y. (Researcher), Wei, C. (Researcher), Cheng, D. (PGR student), Suryo Pratomo, E. (PGR student), Zhang, Z. (PGR student), Li, Z. (PGR student), Mo, H. (PGR student), Zhu, M. (PGR student), Li, Q. (PGR student), Liu, W. (PGR student), Wang, L. (PGR student), Guo, H. (PGR student), Heinemann, R. (PI) & Liu, Z. (PI)
1/04/00 → …
Project: Research

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title = "Fractal characteristics of apparent pores present on polished cross sections of alumina coatings prepared by laser-assisted flame hybrid spraying",

abstract = "A novel laser-assisted flame hybrid spraying process has been developed to deposit alumina coatings on an alumina-based refractory. In this paper, polished cross sections of the alumina coatings, prepared using various process parameters, have been investigated by fractal analysis using an optical microscopy image analysis method. It was evident that both the density correlation functions and the perimeter-area relationships of the apparent pores present on the polished cross sections of the coatings statistically followed fractal laws in nature. Both fractal dimensions, estimated by the density correlation function, and perimeter-area relationships, decreased with increases in laser irradiation intensity. The changes in fractal dimensions suggest that the mechanism of coating deposition have been changed to some extent by the laser treatment. {\textcopyright} 2003 Elsevier B.V. All rights reserved.",

keywords = "Aluminium oxide, Coatings, Fractals, Laser-assisted flame hybrid spraying",

author = "Li, {J. F.} and L. Li and Stott, {F. H.}",

year = "2004",

month = apr,

day = "1",

doi = "10.1016/j.tsf.2003.11.125",

language = "English",

volume = "453-454",

pages = "229--233",

journal = "Thin Solid Films",

publisher = "Elsevier BV",

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TY - JOUR

T1 - Fractal characteristics of apparent pores present on polished cross sections of alumina coatings prepared by laser-assisted flame hybrid spraying

AU - Li, J. F.

AU - Li, L.

AU - Stott, F. H.

PY - 2004/4/1

Y1 - 2004/4/1

N2 - A novel laser-assisted flame hybrid spraying process has been developed to deposit alumina coatings on an alumina-based refractory. In this paper, polished cross sections of the alumina coatings, prepared using various process parameters, have been investigated by fractal analysis using an optical microscopy image analysis method. It was evident that both the density correlation functions and the perimeter-area relationships of the apparent pores present on the polished cross sections of the coatings statistically followed fractal laws in nature. Both fractal dimensions, estimated by the density correlation function, and perimeter-area relationships, decreased with increases in laser irradiation intensity. The changes in fractal dimensions suggest that the mechanism of coating deposition have been changed to some extent by the laser treatment. © 2003 Elsevier B.V. All rights reserved.

AB - A novel laser-assisted flame hybrid spraying process has been developed to deposit alumina coatings on an alumina-based refractory. In this paper, polished cross sections of the alumina coatings, prepared using various process parameters, have been investigated by fractal analysis using an optical microscopy image analysis method. It was evident that both the density correlation functions and the perimeter-area relationships of the apparent pores present on the polished cross sections of the coatings statistically followed fractal laws in nature. Both fractal dimensions, estimated by the density correlation function, and perimeter-area relationships, decreased with increases in laser irradiation intensity. The changes in fractal dimensions suggest that the mechanism of coating deposition have been changed to some extent by the laser treatment. © 2003 Elsevier B.V. All rights reserved.

KW - Aluminium oxide

KW - Coatings

KW - Fractals

KW - Laser-assisted flame hybrid spraying

U2 - 10.1016/j.tsf.2003.11.125

DO - 10.1016/j.tsf.2003.11.125

M3 - Article

VL - 453-454

SP - 229

EP - 233

JO - Thin Solid Films

JF - Thin Solid Films

ER -

Fractal characteristics of apparent pores present on polished cross sections of alumina coatings prepared by laser-assisted flame hybrid spraying

Abstract

Keywords

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