Irradiation-Induced Phase Transformation in Zirconia

Irradiation-Induced Phase Transformation in Zirconia

As a result of fast neutron bombardment, monoclinic ZrO2 is transformed into the cubic phase normally stable only above 1900°C. It is suggested that the unique temperature-structure behavior in the zirconia system lends itself to this transition in a manner whereby two possible mechanisms may be ope...

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Veröffentlicht in:Journal of Applied Physics (U.S.) 1956-06, Vol.27 (6), p.643-644
Hauptverfasser: Wittels, M. C., Sherrill, F. A.
Format: Artikel
Sprache:eng
Schlagworte:
ALLOTROPY
DEFECTS
ENERGY
MEASURED VALUES
NEUTRONS
PHYSICS
RADIATION EFFECTS
STRESSES
ZIRCONIUM OXIDES
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Beschreibung
Zusammenfassung:As a result of fast neutron bombardment, monoclinic ZrO2 is transformed into the cubic phase normally stable only above 1900°C. It is suggested that the unique temperature-structure behavior in the zirconia system lends itself to this transition in a manner whereby two possible mechanisms may be operative. Stresses acting about trapped interstitial atoms and thermal spike effects are presented as the possible mechanisms.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.1722448