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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