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Dilatation Behavior of Two Differently Heat‐Treated Commercial Magnesia‐Partially‐Stabilized Zirconias
Author(s) -
DWORAK ULF,
OLAPINSKI HANS,
BURGER WOLFGANG
Publication year - 1986
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.1151-2916.1986.tb04796.x
Subject(s) - monoclinic crystal system , cubic zirconia , tetragonal crystal system , materials science , hysteresis , magnesium , phase (matter) , crystallography , mineralogy , composite material , metallurgy , chemistry , crystal structure , condensed matter physics , ceramic , organic chemistry , physics
The dilatation behavior of two grades of partially stabilized zirconia (PSZ) was determined. ZN 40 is a material which contains 40% to 50% t ‐ZrO 2 particles, and has a reproducible dilatometric behavior up to 900°C. ZN 50 is a Mg‐PSZ containing 20% to 30% of the monoclinic phase. The cyclic dilatation curves show an unstable hysteresis effect which arises from the tetragonal‐monoclinic phase transformation.