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Diffusive‐convective mass transport of HgI 2 in closed ampoules
Author(s) -
Laskowski Jarosław,
Przyłuski Jan,
Conder Kazimierz
Publication year - 1988
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170231006
Subject(s) - ampoule , torr , convection , mass transport , chemistry , mass transfer , mass flux , analytical chemistry (journal) , thermodynamics , chromatography , physics , engineering physics
The mass transport rate of HgI 2 in closed ampoules with the addition of He, Ar or Xe at different pressures (20–200 Torr) was gravimetrically measured. Diffusive and convective mass fluxes in the systems studied were calculated according to vapour transport models. The influence of technological parameters, i.e. temperature, pressure, kind of added gas, and ampoule diameter, on the mass transport of HgI 2 vapour was studied. Mechanisms of vapour flow in the applied experimental conditions are discussed.