한국섬유공학회지 (Textile Science and Engineering)

  • 제59권3호
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  • Pages.171-179
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  • 2022
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  • 1225-1089(pISSN)
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  • 2288-6419(eISSN)
한국섬유공학회 (The Korean Fiber Society)
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고강도 및 내열성능이 향상된 방화복 코팅원단용 (Ti1-xHfx)N 고용체 열-기계적 특성 연구

A Study of Thermo-mechanical Properties of (Ti1-xHfx)N Solid Solution of High-strength and Heat-resistant Coated Fabrics for Fire Proximity Suits

  • 김효경 (숭실대학교 유기신소재파이버공학과) ;
  • 김준철 (숭실대학교 기계공학부) ;
  • 전세환 (숭실대학교 유기신소재파이버공학과) ;
  • 진세훈 (숭실대학교 유기신소재파이버공학과) ;
  • 최윤성 (숭실대학교 스마트웨어러블공학과) ;
  • 김지웅 (숭실대학교 유기신소재파이버공학과)
  • Kim, Hyokyeong (Department of Organic Materials and Fiber Engineering, Soongsil University) ;
  • Kim, Joonchul (School of Mechanical Engineering, Soongsil University) ;
  • Chun, Sehwan (Department of Organic Materials and Fiber Engineering, Soongsil University) ;
  • Jin, Sehoon (Department of Organic Materials and Fiber Engineering, Soongsil University) ;
  • Choi, Yoon-Seung (Department of Smart Wearables Engineering, Soongsil University) ;
  • Kim, Jiwoong (Department of Organic Materials and Fiber Engineering, Soongsil University)
  • 투고 : 2022.06.03
  • 심사 : 2022.06.25
  • 발행 : 2022.06.30
⟨ 이전 논문 다음 논문 ⟩

초록

We investigated temperature-dependent elastic properties of (Ti1-xHfx)N solid solutions via first principles calculations. The precise convergence tests were performed to obtaining reliable results. Equilibrium structure information of the (Ti1-xHfx)N was in a good agreement with previous results indicated the reliability of the results. The difference between the bulk moduli of TiN and HfN at 0 K and 3000 K is approximately 30 GPa, indicating that the elastic properties are not well maintained at high temperatures. At each temperature, the shear, and Young's moduli of (Ti0.5Hf0.5)N were greater than those of HfN. In addition, (Ti0.5Hf0.5)N maintained its high hardness, which was not significantly affected by temperature. As a result, ternary nitride, such as (Ti0.5Hf0.5)N, is a more promising material for extreme environments than a simple binary system. The results of this study will provide useful information on how to develop new (Ti1-xHfx)N coating materials for fire proximity suits.

키워드

과제정보

이 연구는 2020년도 숭실대학교 교내연구비 지원(융합연구)에 의한 연구임.

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