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Heat Capacities of Heavy‐Metal Fluoride Glasses
Author(s) -
Gavin D. L.,
Chung K.H.,
Bruce A. J.,
Moynihan C. T.,
Drexhage M. G.,
Bayoumi O. H.
Publication year - 1982
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1982.tb10791.x
Subject(s) - glass transition , differential scanning calorimetry , fluoride , transition metal , analytical chemistry (journal) , oxide , materials science , mineralogy , heat capacity , specific heat , chemistry , thermodynamics , inorganic chemistry , metallurgy , composite material , polymer , physics , environmental chemistry , organic chemistry , catalysis
The heat capacities of a series of heavy‐metal fluoride glasses were measured by differential scanning calorimetry from −23°C to above the glass transition. On a per mole of atoms basis all the heat capacities, C p , at ambient temperature were ∼22 J/mol·K and near the glass transition they approached the Dulong‐Petit limit of 3R. The differences, ΔC p between liquid and glass heat capacities per mole of atoms at the glass transition were large compared to those for oxide glasses.