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Formation of Cubic ZrO 2 with Transition Metals of Groups V and VI and Their Oxides
Author(s) -
HOCH MICHAEL,
MATHUR MOOLRAJ
Publication year - 1962
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.1151-2916.1962.tb11172.x
Subject(s) - tetragonal crystal system , transition metal , ternary operation , materials science , crystallography , inorganic chemistry , mineralogy , chemistry , crystal structure , catalysis , organic chemistry , computer science , programming language
Cubic ZrO 2 can be formed at 1500°C from tetragonal ZrO 2 and transition metals of groups V and VI or their monoxides only in the presence of TiO 2 . The 1500° isotherm of the pseudo‐ternary system ZrO 2 ‐TiO 2 ‐VO was investigated and the extent of the single‐phase cubic ZrO 2 region was determined. In the system Ta‐Ta 2 O 5 the lower oxides cannot be formed by reacting Ta and Ta 2 O 5 between 1450° and 1815°C.