Effect of porosity on the laser induced damage threshold of porous anodic alumina films

Autor:	Hong Ying Zhang, ShiGang Wu, Zhi lin Xia, Hu Wang
Rok vydání:	2013
Předmět:	Materials science Thermal transfer Laser Atomic and Molecular Physics and Optics Finite element method Electronic Optical and Magnetic Materials law.invention Anode Thermal conductivity law Electrical and Electronic Engineering Composite material Porosity Elastic modulus
Zdroj:	Optik - International Journal for Light and Electron Optics. 124:3246-3249
ISSN:	0030-4026
DOI:	10.1016/j.ijleo.2012.10.002
Popis:	Thermal stress of porous alumina films has been simulated by finite element method based on thermal transfer equation and thermal stress formulas. The influence of equivalent thermal conductivity and elastic modulus on laser induced damage threshold (LIDT) has been studied. It was found that the biggest circumferential tensile stress will be small with the porosity from 15% to 35%, and it effectively improves the LIDT. The equivalent thermal conductivity and LIDT decreases with the increase of porosity. The equivalent elastic modulus decreases and LIDT increase with the increase of porosity.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b2d2b64b0be8110887776bfcf1225451 https://doi.org/10.1016/j.ijleo.2012.10.002 Zobrazit plný text záznamu Full Text from ScienceDirect