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TLM treatments of changes of phase
Author(s) -
Hurst A. I.,
Pulko S. H.
Publication year - 1994
Publication title -
international journal of numerical modelling: electronic networks, devices and fields
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.249
H-Index - 30
eISSN - 1099-1204
pISSN - 0894-3370
DOI - 10.1002/jnm.1660070307
Subject(s) - endothermic process , differential scanning calorimetry , exothermic reaction , arrhenius equation , materials science , phase change , thermodynamics , phase transition , phase (matter) , mineralogy , geology , chemistry , activation energy , physics , adsorption , organic chemistry
The existing treatment of an instantaneous endothermic change of state is extended to deal both with exothermic effects and with first order Arrhenius changes. These extended treatments are used to model complex changes of phase occurring during the firing of ball clay and china clay, both of which are constitutents of the slip used in the production of vitreous china ware. The adequacy of the treatments is investigated for both clays by comparing a TLM simulation of a DSC (differential scanning calorimetry) experiment with measurements made during the experiment.