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Title: YAG laser surface densification of a zircon refractory by adding AlN nanoparticles

Abstract

A zircon refractory zirconium silicate was surface melted with a pulsed YAG laser to introduce AlN nanoparticles, with the aim of improving its surface density and modifying the corresponding microstructure. The microstructure and phase structure features of the refractory induced by the laser beam were studied by scanning transmission microscopy, incorporating energy dispersive X-ray and X-ray diffraction analysis. Results show that the addition of AlN nanoparticles into the refractory surface significantly reduced the laser beam energy required to melt the surface of the refractory. The laser-melted depth was increased with an increase of laser power from 133 to 200 W. The microstructure of the laser-treated zone with the addition of AlN nanoparticles has a much finer dendritic structure with undeveloped primary dendrite arms while without the addition of AlN nanoparticles, a coarser dendrite with much long primary dendrite arms was observed. The phase structure of the laser-treated layer with the addition of AlN nanoparticles was found to be composed of m-ZrO{sub 2}, c-ZrO{sub 2}, ZrSiO{sub 4} and H-AlN.

Authors:
 [1];  [2];  [3];  [4];  [4];  [4];  [4];  [4]
  1. Institute of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, 471003 (China)
  2. (China)
  3. State Key Lab of Plastic Forming Simulation, and Die and Mould Technology, Department of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074 (China). E-mail: pmahwang@public.wh.hb.cn
  4. State Key Lab of Plastic Forming Simulation, and Die and Mould Technology, Department of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074 (China)
Publication Date:
OSTI Identifier:
20833198
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Characterization; Journal Volume: 56; Journal Issue: 3; Other Information: DOI: 10.1016/j.matchar.2005.11.011; PII: S1044-5803(05)00262-7; Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ALUMINIUM NITRIDES; DENDRITES; LAYERS; MICROSTRUCTURE; NANOSTRUCTURES; PARTICLES; REFRACTORIES; SOLIDIFICATION; X-RAY DIFFRACTION; ZIRCON; ZIRCONIUM OXIDES; ZIRCONIUM SILICATES

Citation Formats

Wang, W.Y., Key Laboratory of Material Physics, Ministry of Education, Zhengzhou University, ZhengZhou, 450052, Wang, A.H., Zeng, D.W., Bai, Z.K., Xie, C.S., Song, W.L., and Zhu, X.C.. YAG laser surface densification of a zircon refractory by adding AlN nanoparticles. United States: N. p., 2006. Web. doi:10.1016/j.matchar.2005.11.011.
Wang, W.Y., Key Laboratory of Material Physics, Ministry of Education, Zhengzhou University, ZhengZhou, 450052, Wang, A.H., Zeng, D.W., Bai, Z.K., Xie, C.S., Song, W.L., & Zhu, X.C.. YAG laser surface densification of a zircon refractory by adding AlN nanoparticles. United States. doi:10.1016/j.matchar.2005.11.011.
Wang, W.Y., Key Laboratory of Material Physics, Ministry of Education, Zhengzhou University, ZhengZhou, 450052, Wang, A.H., Zeng, D.W., Bai, Z.K., Xie, C.S., Song, W.L., and Zhu, X.C.. Sat . "YAG laser surface densification of a zircon refractory by adding AlN nanoparticles". United States. doi:10.1016/j.matchar.2005.11.011.
@article{osti_20833198,
title = {YAG laser surface densification of a zircon refractory by adding AlN nanoparticles},
author = {Wang, W.Y. and Key Laboratory of Material Physics, Ministry of Education, Zhengzhou University, ZhengZhou, 450052 and Wang, A.H. and Zeng, D.W. and Bai, Z.K. and Xie, C.S. and Song, W.L. and Zhu, X.C.},
abstractNote = {A zircon refractory zirconium silicate was surface melted with a pulsed YAG laser to introduce AlN nanoparticles, with the aim of improving its surface density and modifying the corresponding microstructure. The microstructure and phase structure features of the refractory induced by the laser beam were studied by scanning transmission microscopy, incorporating energy dispersive X-ray and X-ray diffraction analysis. Results show that the addition of AlN nanoparticles into the refractory surface significantly reduced the laser beam energy required to melt the surface of the refractory. The laser-melted depth was increased with an increase of laser power from 133 to 200 W. The microstructure of the laser-treated zone with the addition of AlN nanoparticles has a much finer dendritic structure with undeveloped primary dendrite arms while without the addition of AlN nanoparticles, a coarser dendrite with much long primary dendrite arms was observed. The phase structure of the laser-treated layer with the addition of AlN nanoparticles was found to be composed of m-ZrO{sub 2}, c-ZrO{sub 2}, ZrSiO{sub 4} and H-AlN.},
doi = {10.1016/j.matchar.2005.11.011},
journal = {Materials Characterization},
number = 3,
volume = 56,
place = {United States},
year = {Sat Apr 15 00:00:00 EDT 2006},
month = {Sat Apr 15 00:00:00 EDT 2006}
}
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