Reflectivity and laser ablation of ZrB2/Cu ultra high temperature ceramic

Zhenyu Yan, Zhuang Ma*, Shizhen Zhu, Ling Liu, Qiang Xu

*Corresponding author for this work

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

2 Citations (Scopus)

Abstract

Ultra high temperature ceramics (UHTCs) were thought to be candidates for laser protective materials due to their high melting point, thermal shock and ablation resistance. The ablation behaviors of UHTCs like ZrB2 and its composite had been intensely investigated by the means of arc, plasma, oxyacetylene ablation. However, the ablation behavior under laser irradiation was still unknown by now. In this paper, the dense bulk composites of ZrB 2/Cu were successfully sintered by spark plasma sintering (SPS) at 1650 degree C for 3min. The reflectivity of the composites measured by spectrophotometry achieved 60% in near infrared range and it decreased with the increasing wavelength of incident light. High intensity laser ablation was carried out on the ZrB2/Cu surface. The phase composition and microstructure changes before and after laser irradiation were characterized by X-ray diffraction and SEM respectively. The results revealed that the oxidation and melting were the main mechanisms during the ablation processing.

Original languageEnglish
Title of host publication2nd International Symposium on Laser Interaction with Matter, LIMIS 2012
DOIs
Publication statusPublished - 2013
Event2nd International Symposium on Laser Interaction with Matter, LIMIS 2012 - Xi'an, Shaanxi, China
Duration: 9 Sept 201212 Sept 2012

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8796
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference2nd International Symposium on Laser Interaction with Matter, LIMIS 2012
Country/TerritoryChina
CityXi'an, Shaanxi
Period9/09/1212/09/12

Keywords

  • Laser Ablation
  • Reflectivity
  • SPS;
  • UHTCs
  • ZrB/Cu

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Yan, Z., Ma, Z., Zhu, S., Liu, L., & Xu, Q. (2013). Reflectivity and laser ablation of ZrB2/Cu ultra high temperature ceramic. In 2nd International Symposium on Laser Interaction with Matter, LIMIS 2012 Article 87960T (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8796). https://doi.org/10.1117/12.2011293