An Investigation of Phase Crystallinity in Laser Modified Yttria Stabilized Zirconia (YSZ) Thermal Barrier Coating

This paper presents laser surface modification process of plasma sprayed yttria stabilized zirconia (YSZ) thermal barrier coating (TBC) for enhanced hardness properties and low surface roughness. A 300W JK300HPS Nd: YAG laser was used to process YSZ TBC sample surface. The parameters selected for ex...

Full description

Bibliographic Details
Main Authors:	Mohamed Reza Zalani, Mohamed Suffian, S. N., Aqida, Mohd Toff, Mohd Radzi
Format:	Article
Language:	English
Published:	Trans Tech Publications, Switzerland 2014
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/9518/ http://umpir.ump.edu.my/id/eprint/9518/ http://umpir.ump.edu.my/id/eprint/9518/ http://umpir.ump.edu.my/id/eprint/9518/1/An%20Investigation%20of%20Phase%20Crystallinity%20in%20Laser%20Modified%20Yttria%20Stabilized%20Zirconia%20%28YSZ%29%20Thermal%20Barrier%20Coating.pdf.pdf

id	ump-9518
recordtype	eprints
spelling	ump-95182018-01-22T07:18:07Z http://umpir.ump.edu.my/id/eprint/9518/ An Investigation of Phase Crystallinity in Laser Modified Yttria Stabilized Zirconia (YSZ) Thermal Barrier Coating Mohamed Reza Zalani, Mohamed Suffian S. N., Aqida Mohd Toff, Mohd Radzi TJ Mechanical engineering and machinery This paper presents laser surface modification process of plasma sprayed yttria stabilized zirconia (YSZ) thermal barrier coating (TBC) for enhanced hardness properties and low surface roughness. A 300W JK300HPS Nd: YAG laser was used to process YSZ TBC sample surface. The parameters selected for examination were laser power, pulse repetition frequency (PRF) and residence time. Micrographs of the TBC system were captured using EVO 15 Scanning Electron Microscope (SEM). Surface roughness was measured using 2-dimensional stylus profilometer. X-ray diffraction analysis (XRD) was conducted to measure phase crystallinity of the laser-modified coating surface. X-ray diffraction patterns were recorded in the 2θ range of 10 to 80° using Bruker D8 Advance system with 0.7Å wavelength from a copper source (~1.5Å). The laser modified surface exhibited higher crystallinity compared to the as-sprayed samples. The presence of tetragonal phase was detected in the as-sprayed and laser processed samples. The hardness properties of laser modified TBC increased 15% of the as-sprayed sample. These finding are significant to development of thermal barrier coating design optimization for enhanced surface properties of semi-solid forming die. Trans Tech Publications, Switzerland 2014 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/9518/1/An%20Investigation%20of%20Phase%20Crystallinity%20in%20Laser%20Modified%20Yttria%20Stabilized%20Zirconia%20%28YSZ%29%20Thermal%20Barrier%20Coating.pdf.pdf Mohamed Reza Zalani, Mohamed Suffian and S. N., Aqida and Mohd Toff, Mohd Radzi (2014) An Investigation of Phase Crystallinity in Laser Modified Yttria Stabilized Zirconia (YSZ) Thermal Barrier Coating. Key Engineering Materials, 611 (612). pp. 1601-1607. ISSN 1013-9826 (print); 1662-9795 (online) http://www.scientific.net/KEM.611-612.1601 DOI: 10.4028/www.scientific.net/KEM.611-612.1601
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Mohamed Reza Zalani, Mohamed Suffian S. N., Aqida Mohd Toff, Mohd Radzi An Investigation of Phase Crystallinity in Laser Modified Yttria Stabilized Zirconia (YSZ) Thermal Barrier Coating
description	This paper presents laser surface modification process of plasma sprayed yttria stabilized zirconia (YSZ) thermal barrier coating (TBC) for enhanced hardness properties and low surface roughness. A 300W JK300HPS Nd: YAG laser was used to process YSZ TBC sample surface. The parameters selected for examination were laser power, pulse repetition frequency (PRF) and residence time. Micrographs of the TBC system were captured using EVO 15 Scanning Electron Microscope (SEM). Surface roughness was measured using 2-dimensional stylus profilometer. X-ray diffraction analysis (XRD) was conducted to measure phase crystallinity of the laser-modified coating surface. X-ray diffraction patterns were recorded in the 2θ range of 10 to 80° using Bruker D8 Advance system with 0.7Å wavelength from a copper source (~1.5Å). The laser modified surface exhibited higher crystallinity compared to the as-sprayed samples. The presence of tetragonal phase was detected in the as-sprayed and laser processed samples. The hardness properties of laser modified TBC increased 15% of the as-sprayed sample. These finding are significant to development of thermal barrier coating design optimization for enhanced surface properties of semi-solid forming die.
format	Article
author	Mohamed Reza Zalani, Mohamed Suffian S. N., Aqida Mohd Toff, Mohd Radzi
author_facet	Mohamed Reza Zalani, Mohamed Suffian S. N., Aqida Mohd Toff, Mohd Radzi
author_sort	Mohamed Reza Zalani, Mohamed Suffian
title	An Investigation of Phase Crystallinity in Laser Modified Yttria Stabilized Zirconia (YSZ) Thermal Barrier Coating
title_short	An Investigation of Phase Crystallinity in Laser Modified Yttria Stabilized Zirconia (YSZ) Thermal Barrier Coating
title_full	An Investigation of Phase Crystallinity in Laser Modified Yttria Stabilized Zirconia (YSZ) Thermal Barrier Coating
title_fullStr	An Investigation of Phase Crystallinity in Laser Modified Yttria Stabilized Zirconia (YSZ) Thermal Barrier Coating
title_full_unstemmed	An Investigation of Phase Crystallinity in Laser Modified Yttria Stabilized Zirconia (YSZ) Thermal Barrier Coating
title_sort	investigation of phase crystallinity in laser modified yttria stabilized zirconia (ysz) thermal barrier coating
publisher	Trans Tech Publications, Switzerland
publishDate	2014
url	http://umpir.ump.edu.my/id/eprint/9518/ http://umpir.ump.edu.my/id/eprint/9518/ http://umpir.ump.edu.my/id/eprint/9518/ http://umpir.ump.edu.my/id/eprint/9518/1/An%20Investigation%20of%20Phase%20Crystallinity%20in%20Laser%20Modified%20Yttria%20Stabilized%20Zirconia%20%28YSZ%29%20Thermal%20Barrier%20Coating.pdf.pdf
first_indexed	2023-09-18T22:08:10Z
last_indexed	2023-09-18T22:08:10Z
_version_	1777414848350519296

An Investigation of Phase Crystallinity in Laser Modified Yttria Stabilized Zirconia (YSZ) Thermal Barrier Coating

Similar Items