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Ablation and Erosion Behavior of MoSi2 Coatings Under High-Temperature Gas Flow

  • Chenxi Li
  • , Shengbo Shi*
  • , Jialei Dong
  • , Dinghuan Xu
  • , Jinjin Wang
  • , Jun Liang
  • *Corresponding author for this work
  • Northwestern Polytechnical University Xian
  • Aircraft Strength Research Institute
  • Xi’an Aerospace Propulsion Research Institute
  • Rocket Force University of Engineering
  • Beijing Institute of Technology

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

Abstract

The high-temperature ablation and erosion behavior of MoSi2 coatings was systematically investigated through oxygen–kerosene combustion tests, simulating the extreme thermal and oxidative environment encountered in liquid rocket engine thrust chambers under high-temperature gas flow conditions containing entrained particles. Detailed surface analysis revealed distinct erosion features, including central pits, transitional zones, and particle accumulation areas, indicating complex thermomechanical and oxidative interactions. An erosion rate prediction model was developed, incorporating both normal impact-induced fragmentation and tangential shear effects of particle collisions. The model was validated against data obtained from oxygen–kerosene combustion tests, and demonstrated good predictive accuracy. These results provide valuable insights for the design and performance assessment of high-temperature protective coatings in aerospace propulsion systems.

Original languageEnglish
Title of host publicationProceedings of the 6th Chinese National Congress on Thermal Stresses NCTS 2025
EditorsYu’e Ma, Xudan Yao, Wandong Wang, Cunfa Gao, Ji Wang, Yuanye Liu
PublisherSpringer Science and Business Media Deutschland GmbH
Pages213-224
Number of pages12
ISBN (Print)9789819526314
DOIs
Publication statusPublished - 2025
Externally publishedYes
Event6th Chinese National Congress on Thermal Stresses, NCTS 2025 - Xi’an, China
Duration: 18 Apr 202520 Apr 2025

Publication series

NameSpringer Proceedings in Physics
Volume326 SPPHY
ISSN (Print)0930-8989
ISSN (Electronic)1867-4941

Conference

Conference6th Chinese National Congress on Thermal Stresses, NCTS 2025
Country/TerritoryChina
CityXi’an
Period18/04/2520/04/25

Keywords

  • Erosion rate prediction model
  • MoSi coating
  • Oxygen–kerosene combustion test

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