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Subsolidus Equilibria in the System ZrO 2 ‐WO 3 ‐P 2 O 5
Author(s) -
MARTINEK CHARLES A.,
HUMMEL F. A.
Publication year - 1970
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.1151-2916.1970.tb12059.x
Subject(s) - metastability , ternary operation , compatibility (geochemistry) , ternary numeral system , mineralogy , phase diagram , binary number , ternary compound , thermodynamics , materials science , chemistry , phase (matter) , inorganic chemistry , geology , geochemistry , physics , mathematics , computer science , organic chemistry , arithmetic , programming language
The existence of stable and metastable forms of 2ZrO 2 ·P 2 O 5 and the subsolidus phase relations in the system ZrO 2 ‐ZrP 2 O 7 were confirmed before investigation of the ternary system. The synthesis and thermal behavior of ZrW 2 O 8 were reinvestigated, and the system WO 3 ‐P 2 O 5 was examined cursorily. A ternary compound, 2ZrO 2 ·WO 3 ·P 2 O 5 , was found, and compatibility triangles for the system between 1105° and 1150°C were established. The ternary compound is compatible with ZrO 2 , WO 3 , and three binary compounds, giving rise to five composition triangles. In addition, ZrP 2 O 7 , WO 3 , and “W 2 O 3 (PO 4 ) 2 ” were compatible.