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Free Volume of Phosphate Glasses
Author(s) -
Abe Yoshihiro,
Suzuki Suguru
Publication year - 1981
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.1151-2916.1981.tb09542.x
Subject(s) - volume (thermodynamics) , phosphate glass , mineralogy , phosphate , chemistry , analytical chemistry (journal) , materials science , crystallography , thermodynamics , physics , chromatography , organic chemistry
Free volume (V f ), defined by Simha and Boyer, was measured for glasses in the system MO‐P 2 O 5 (M=Be, Mg, Ca, Ba, Zn) and (1‐x)MO·P 2 O 5 ‐xAl 2 O 3 ·3P 2 O 5 (M = Mg, Ca, Ba). Experimental V f of the glasses was ∼0 to 0.3. These results indicate that V f is not a universal constant (∼0.1) for all glasses as previously reported, but that V f depends on the glass backbone structure.