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The System Hafnia‐Samaria
Author(s) -
DURAN P.
Publication year - 1979
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.1151-2916.1979.tb18794.x
Subject(s) - hafnia , tetragonal crystal system , monoclinic crystal system , phase diagram , solid solution , materials science , diffraction , crystallography , phase (matter) , mineralogy , crystal structure , chemistry , physics , metallurgy , optics , ceramic , cubic zirconia , organic chemistry
The phase relations in the system HfO 2 ‐Sm 2 O 3 were studied by high‐temperature and room‐temperature X‐ray diffraction. The areas of existence of the solid solutions based on HfO 2 , Sm 2 Hf 2 O 7 , and Sm 2 O 3 were determined using the lattice parameter method. Also, the influence of small additions of Sm 2 O 3 on the monoclinic‐tetragonal transformation temperature of hafnia was studied. A tentative phase diagram is proposed.