한국결정성장학회지 (Journal of the Korean Crystal Growth and Crystal Technology)

  • 제34권2호
  • /
  • Pages.48-54
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  • 2024
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  • 1225-1429(pISSN)
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  • 2234-5078(eISSN)
한국결정성장학회 (The Korea Association of Crystal Growth)
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브로민화수은(I)(Hg2Br2) 증착공정에서 자체확산 연구

Study on self-diffusion transport phenomena during mercurous bromide (Hg2Br2) vapor processes

  • 김남일 (한남대학교 화학공학과) ;
  • 김극태 (한남대학교 화학공학과)
  • Nam Il Kim (Department of Chemical Engineering, Hannam University) ;
  • Geug Tae Kim (Department of Chemical Engineering, Hannam University)
  • 투고 : 2024.02.15
  • 심사 : 2024.03.11
  • 발행 : 2024.04.30
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초록

브로민화 수은(I)(Hg2Br2) 자체 확산 물리적 증착법 공정에서 자체 확산 전달현상 연구에서 얻어진 결론은 10-3g0 ≤ g ≤ 1g0 영역에서는 열 대류현상이 지배적이며, g = 10-4g0 영역에서는 대류에서 확산영역으로 전이되는 영역이며, 10-6g0 ≤ g ≤ 10-5g0 영역에서는 확산모드가 지배적이다. Hg2Br2의 총 몰플럭스는 중력가속도의 레벌(level)이 1/10 크기로 감소함에 따라 기하급수적으로 감소함을 나타내고 있다는 것이다. 10℃ ≤ ΔT ≤ 50℃의 온도차 범위에서는 온도차(ΔT)와 Hg2Br2의 총 몰플럭스에 대한 관계식은 선형적으로 직선적 비례관계성을 보여주고 있다.

During the Hg2Br2 physical vapor transport process with self-diffusion, it is concluded that for 10-3g0≤ g ≤ 1g0 the thermal buoyancy driven convection is dominant in the vapor phase; at the gravitational level of g = 10-4g0, the transition region from the convection to diffusion occurs; for 10-6g0 ≤ g ≤ 10-5g0, the diffusion mode is predominant. The total molar flux of Hg2Br2 decays exponentially with the decreasing of one tenth of gravitational magnitude. For 10℃ ≤ ΔT ≤ 50℃, the total molar flux increases linearly and directly with the temperature difference between the source and crystal regions.

키워드

과제정보

본 연구는 2023년도 한남대학교 학술연구비(과제번호: 2023A107)의 지원을 받아 수행되었습니다.

참고문헌

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