Journal of the Mineralogical Society of Korea (한국광물학회지)

The Mineralogical Society of Korea (한국광물학회)
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Compressibility Study of Pyromorphite at High Pressure

고압 하에서 녹연석의 압축성에 대한 연구

  • Kim, Young-Ho (Department of Geology and Research Institute of Natural Sciences, Gyeongsang National University) ;
  • Lee, Nuri (Department of Geology and Research Institute of Natural Sciences, Gyeongsang National University)
  • 김영호 (경상대학교 지질과학과 및 기초과학연구소) ;
  • 이누리 (경상대학교 지질과학과 및 기초과학연구소)
  • Received : 2016.12.07
  • Accepted : 2016.12.28
  • Published : 2016.12.30
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Abstract

Pyromorphite($Pb_{4.85}(P_{1.02}O_4)_3Cl_{1.04}$) which belongs to the apatite group was compressed up to 33.4 GPa for its equation of state at ambient temperature. High pressure experiment was performed with symmetrical diamond anvil cell employing the angle dispersive X-ray diffraction method. Pressure was determined by ruby fluorescence calibration method. No phase transition were observed and bulk modulus was determined to be 80(7) GPa when $K{_0}^{\prime}=13(2)$. Employing the normalized pressure-normalized strain analysis, reliability check of the compressible behavior was conducted.

인회석 광물 군에 속하는 녹연석($Pb_{4.85}(P_{1.02}O_4)_3Cl_{1.04}$)에 대한 상온-고압 상태방정식 연구를 시행하였다. 대칭형 다이아몬드 앤빌기기를 이용하여 33.4 GPa까지 압력을 증가시키면서 각분산 X-선 회절법과 방사광을 이용하여 회절 데이터를 검출하였으며, 시료에 가해준 압력은 루비 형광파의 파장변화를 측정하여 결정하였다. 본 고압실험에서 시행한 압력의 범위 내에서 상변이는 관찰되지 않았으며, 정압상태에서 체적탄성률($K_0$)은 $K{_0}^{\prime}=13(2)$일 때 80(7) GPa로 계산되었다. 본 연구에서 결정된 상온상태에서 녹연석의 체적탄성률 신뢰도를 정규화압력 및 정규화응력변형 분석을 하여 평가하였다.

Keywords

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