Characterization of air plasma based 7YSZ aluminum alloys thermal barrier systems for hot zone-Reference-Cited by-同舟云学术

Characterization of air plasma based 7YSZ aluminum alloys thermal barrier systems for hot zone

Published:2016-03-22 Issue:7 Volume:232 Page:582-591
ISSN:1464-4207
Container-title:Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications
language:en
Short-container-title:Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications

Author:

Kumar Dipak¹,Pandey KN¹,Das Dipak Kumar²

Affiliation:

1. Department of Mechanical Engineering, Motilal Nehru National Institute of Technology Allahabad, Allahabad, India

2. Defence Metallurgical Research Laboratory, Hyderabad, India

Abstract

Characterization of yttria-stabilized zirconia coatings deposited on AA2024-T351 aluminum alloy by air plasma spraying is carried out in the present work to assess its applicability as a thermal barrier coating on automotive components aluminum alloys. Tetragonality of coating microstructures was confirmed through X-ray diffractometer, transmission electron microscopy, and high-resolution transmission electron microscopy. Lattice-image spacing obtained from high-resolution transmission electron microscopy confirmed multilayer structure of the coating and that the tetragonal phases are stable. From the optical microscopy it was found that there are good coating particle distribution and homogeneity of coating particles on the substrate while atomic force microscopy provided information about surface bumps and pits. Small roughness of the coating microstructure was found to be very low. Small roughness showed good deposition efficiency of the coating structures.

Publisher

SAGE Publications

Subject

Mechanical Engineering,General Materials Science

Link

http://journals.sagepub.com/doi/pdf/10.1177/1464420716640570

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