Influence of pulse frequency on the structure and oxidation resistance of ALPO4 ceramics coating and its deposition dynamics

  • Lei Zhou
  • , Jian Feng Huang
  • , Li Yun Cao
  • , He Jun Li
  • , Wei Hao
  • , Hai Bo Ou-Yang

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

Abstract

A facile pulse arc discharge deposition method was developed to prepare AlPO4 oxidation resistant outer coating on SiC pre-coated carbon/carbon composites (SiC-C/C). The deposition dynamics and the influence of pulse frequency on composition, microstructure and oxidation resistance of the as-prepared coating were investigated. Results show that pulse arc discharge deposition is an effective route to achieve dense and crack-free AlPO4 coatings. The deposition activation energy of the AlPO4 coating is calculated to be 3.07 kJ·mol-1. The AlPO4 coating prepared at a pulse frequency of 2000 Hz exhibits good oxidation resistance, which can effectively protect C/C composites from oxidation in air at 1773 K for 262 h with a weight loss of 1.58%.

Original languageEnglish
Title of host publicationFunctional Materials Research
EditorsYuxun Wang, Guichun Huang, Linqing Luo
PublisherTrans Tech Publications Ltd
Pages1095-1101
Number of pages7
ISBN (Print)9783038357551
DOIs
StatePublished - 2016
EventChina Functional Material Technology and Industry Forum, CFMTIF 2015 - Hunan, China
Duration: 30 Oct 20151 Nov 2015

Publication series

NameMaterials Science Forum
Volume852
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

ConferenceChina Functional Material Technology and Industry Forum, CFMTIF 2015
Country/TerritoryChina
CityHunan
Period30/10/151/11/15

Keywords

  • AlPO coating
  • Deposition dynamics
  • Oxidation
  • Pulse frequency

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