Title

Mathematical model for laser densification of ceramic coating

Abstract

A theoretical study for the densification of ceramic coating processed with a moving transmission electron microscopy (TEM00) mode laser beam is conducted. A three-dimensional quasi-steady state heat conduction model is developed by applying the Fourier integral transform method. An approximate expression for temperature distribution is also presented and the calculations with it are found to be in good agreement with the exact solutions within a limited region around the laser spot. The depth of the heat-affected zone in ZrO2 coating is calculated with this model. Moreover, a working range for ZrO2 densification is determined by varying the laser beam power, spot size and scanning velocity. The heat-affected zone is found to be confined within a depth of 50 μm from the surface and the vitrified layers are fully densified for particles of initial radius 5 μm.

Publication Date

1-1-1997

Publication Title

Journal of Materials Science

Volume

32

Issue

23

Number of Pages

6269-6278

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1023/A:1018693212407

Socpus ID

0031351384 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0031351384

This document is currently not available here.

Share

COinS