Journal of the Korean Society for Aeronautical & Space Sciences (한국항공우주학회지)

The Korean Society for Aeronautical and Space Sciences (한국항공우주학회)
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Thermal Performance Evaluations on High-Erosion Resistance Materials for Very Small Nozzle Throat Inserts

장시간 연소용 초소형 저삭마 목삽입재 선정을 위한 내열성능 평가

  • 강윤구 (국방과학연구소 1기술본부 6부) ;
  • 박종호 (충남대학교 BK21 메카트로닉스사업단)
  • Published : 2009.12.01
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Abstract

This paper describes the research on the non-eroding throat insert materials under condition of high-temperature, high-pressure, and long-burn time. C/SiC, CIT and W/$Y_2O_3$ were chosen and tested in thermal protection evaluation motor of burning time 20 seconds. From the test results, a heat resistance of W/$Y_2O_3$ was the most excellent among them, but was happened crack on material surface. Thermal reaction characteristics and heat resistance of these materials and feasibility of W/$Y_2O_3$ as throat material were ascertained.

고온/고압, 장시간 연소조건에서 비삭마에 가까운 삭마 특성을 갖는 초소형 목삽입재 선정을 위한 연구를 수행하였다. 평가 소재로서 C/SiC, CIT, W/$Y_2O_3$를 선정하였으며, 연소시간 20초의 내열성능평가모타로 시험하였다. 시험 결과 W/$Y_2O_3$가 가장 우수하였으나, 균열이 발생하였다. 본 연구를 통하여 각 소재들의 열반응 특성 및 내열 성능을 이해할 수 있었으며, W/$Y_2O_3$의 적용가능성을 확인하였다.

Keywords

References

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Cited by

  1. Thermal Performance Evaluations of Tungsten/Yttria as Nozzle Throat Insert Material for Long Duration Firing vol.38, pp.2, 2010, https://doi.org/10.5139/JKSAS.2010.38.2.200