Influence of thermo-physical properties on solutal convection by physical vapor transport of Hg2Cl2-N2 system: Part I - solutal convection

Geug Tae  Kim (김극태); Young Joo Kim (김영주)

Influence of thermo-physical properties on solutal convection by physical vapor transport of Hg2Cl2-N2 system: Part I - solutal convection

Journal of the Korean Crystal Growth and Crystal Technology
Abbr : J. Korean Cryst. Growth Cryst. Technol.
2010, 20(3), pp.125-132
Publisher : The Korea Association Of Crystal Growth, Inc.
Research Area : Engineering > Materials Science and Engineering

Geug Tae Kim ¹, Young Joo Kim ²

¹한남대학교
²한국생명공학연구원

Accredited

ABSTRACT

For typical governing dimensionless parameters of Ar = 5, Pr = 1.16, Le = 0.14, Pe = 3.57, Cv = 1.02, Grs = 2.65 ×106, the effects of thermo physical properties such as a molecular weight, a binary diffusivity coefficient, a partial pressure of component B on solutally buoyancy-driven convection (solutal Grashof number Grs = 2.65 × 106) are theoretically investigated for further understanding and insight into an essence of solutal convection occurring in the vapor phase during the physical vapor transport of a Hg2Cl2-N2 system. The solutally buoyancy-driven convection is significantly affected by any significant disparity in the molecular weight of the crystal components and the impurity gas of nitrogen. The solutal convection in a vertical orientation is found to be more suppressed than a tenth reduction of gravitational accelerations in a horizontal orientation. For crystal growth parameters under consideration, the greater uniformity in the growth rate is obtained for either solutal convection mode in a vertical orientation or thermal convection mode in horizontal geometry. The growth rate is also found to be first order exponentially decayed for 10 ≤ PB ≤ 200 Torr.

KEYWORDS

Mercurous chloride, Solutal convection, Nitrogen and physical vapor transport (PVT)

Citation status

* References for papers published after 2023 are currently being built.

[journal] N.B. Singh / 1994 / Growth and characterization of mercurous halide crystals:mercurous bromide system / J. Crystal Growth 137 : 155~

[journal] B.L. Markham / 1981 / Numerical modeling of diffusive-convective physical vapor transport in cylindrical vertical ampoules / J. Crystal Growth 51 : 426~

[journal] W.M.B. Duval / 1994 / Convection in the physical vapor transport process-- I: Thermal / J. Chemical Vapor Deposition 2 : 188~

[journal] A. Nadarajah / 1992 / Effects of buoyancy-driven flow and thermal boundary conditions on physical vapor transport / J. Crystal Growth 118 : 49~

[journal] H. Zhou / 1996 / Physical vapor transport of zinc-telluride by dissociative sublimation / J. Crystal Growth 167 : 534~

[journal] F. Rosenberger / 1997 / Physical vapor transport revised / J. Crystal Growth 171 : 270~

[journal] G.T. Kim / 1995 / Thermal convective effects on physical vapor transport growth of mercurous chloride crystals (Hg2C12) for axisymmetric 2-D cylindrical enclosure / Modelling. Simul. Mater. Sci. Eng. 3 : 331~

[journal] G.T. Kim / 1997 / Thermal convection in physical vapour transport of mercurous chloride (Hg2Cl2) for rectangular enclosures / Modelling. Simul. Mater. Sci. Eng. 5 : 289~

[journal] G.T. Kim / 1997 / Effects of asymmetric temperature profiles on thermal convection during physical vapor transport of Hg2Cl2 / Chem. Eng. Comm. 162 : 45~

[journal] 최정길 / 2006 / Effect of accelerational perturvations on physical vapor transport crystal growth under microgravity environments / 한국결정성장학회지 / 한국결정성장학회 16(5) : 203~209

[journal] 김극태 / 2004 / Parametric studies on convection during the physical vapor transport of mercurous chloride (Hg2Cl2) / 한국결정성장학회지 / 한국결정성장학회 14(6) : 281~289

[journal] Geug-Tae Kim / 2005 / Convective-diffusive transport in mercurous chloride (Hg2Cl2) crystal growth / Journal of Ceramic Processing Research / 세라믹공정연구센터 6(2) : 110~117

[journal] 최정길 / 2008 / Effects of inert gas (Ne) on thermal convection of mercurous chloride system of Hg₂Cl₂ and Ne during physical vapor transport / 한국결정성장학회지 / 한국결정성장학회 18(6) : 225~231

[journal] 최정길 / 2009 / Generic studies on thermo-solutal convection of mercurous chloride system of Hg2Cl2 and Ne during physical vapor transport / 한국결정성장학회지 / 한국결정성장학회 19(1) : 39~47

[journal] 김극태 / 2009 / Effects of thermal boundary conditions and microgravity environments on physical vapor transport of Hg2Cl2-Xe system / 한국결정성장학회지 / 한국결정성장학회 19(4) : 172~183

[journal] 최정길 / 2009 / Effects of total pressure and gravity level on the physical vapor transport of Hg2Cl2-Cl2 system / 한국결정성장학회지 / 한국결정성장학회 19(3) : 116~124

[journal] 김극태 / 2009 / Theoretical gravity studies on roles of convection in crystal growth of Hg2Cl2-Xe by physical vapor transport under normal and high gravity environments / 한국결정성장학회지 / 한국결정성장학회 19(3) : 107~115

[journal] N.B. Singh / 1989 / Evaluation of transport conditions during PVT: mercurous chloride system / PhysicoChemical Hydrodynamics 11 : 41~

[journal] F. Rosenberger / 1983 / Interfacial transport in crystal growth, a parameter comparison of convective effects / J. Crystal Growth 65 : 91~

[journal] M. Kassemi / 1989 / Interaction of surface radiation with convection in crystal growth by physical vapor transport / J. Thermophys. Heat Transfer 4 : 454~

[book] R.B. Bird / 1960 / Transport Phenomena / John Wiley and Sons

[other] C. Mennetrier / 1991 / Thermal-solutal convection with conduction effects inside a rectangular enclosure / NASA Technical Memorandum 105371

[book] S.V. Patankar / 1980 / Numerical heat transfer and fluid flow / Hemisphere Publishing Corp.

[other] N.B. Singh / 1991 / Growth kinetics of physical vapor transport processes: crystal growth of the optoelectronic material mercurous chloride / NASA Technical Memorandum 103788

[other] C. Mennetrier / 1992 / Physical vapor transport of mercurous chloride under a nonlinear thermal profile / NASA Technical Memorandum 105920

KJCKorea
Journal Central

Journal of the Korean Crystal Growth and Crystal Technology 2023 KCI Impact Factor : 0.19