Study on high power CW laser's irradiation effect on yttria-stabilized zirconia coating

Lihong Gao, Binbin Wei, Zhuang Ma, Yanbo Liu*, Wenzhi Li, Shijie Sun, Jinyu Li, Tao Dong

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

With the increasing in laser power, it is necessary to prepare protective coatings for components and devices under high power laser irradiation environment. Yttria-stabilized zirconia has high melting point, good stability and low thermal conductivity, and is often used as thermal barrier coating material. However, the study on its anti high power CW laser performance is rare. In this paper, the yttria-stabilized zirconia coating was deposited using atmospheric plasma spraying. The spectrophotometer, X-ray diffraction, scanning electron microscope and energy dispersive spectrometer were used to characterize the coating before and after high power CW laser irradiation. The temperature of substrate in back side was measured during irradiation. The results show that under the 2000 W/cm2 laser power density continuously irradiated for 20 s, the back temperature is only 250 °C. Even continuously irradiated for 60 s under this power, no obvious damage appears on the coating. Only the phenomenon of micro melting in the irradiation center was observed under scanning electron microscope. The coating shows excellent anti-laser irradiation ability.

Original languageEnglish
Title of host publicationPacific Rim Laser Damage 2017
Subtitle of host publicationOptical Materials for High-Power Lasers
EditorsWolfgang Rudolph, Takahisa Jitsuno, Jianda Shao
PublisherSPIE
ISBN (Electronic)9781510611238
DOIs
Publication statusPublished - 2017
EventPacific Rim Laser Damage 2017: Optical Materials for High-Power Lasers - Shanghai, China
Duration: 21 May 201724 May 2017

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10339
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferencePacific Rim Laser Damage 2017: Optical Materials for High-Power Lasers
Country/TerritoryChina
CityShanghai
Period21/05/1724/05/17

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