Shock and release wave properties of yttria-doped tetragonal and cubic zirconia

Journal Article · Fri May 15 00:00:00 EDT 1992 · Journal of Applied Physics; (United States)

DOI:https://doi.org/10.1063/1.350631· OSTI ID:7238036

Grady, D E ^[1]; Mashimo, T ^[2]

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1. Experimental Impact Physics Division, Sandia National Laboratories, Albuquerque, New Mexico 87185 (United States)
2. High-Energy Rate Laboratory, Kumamoto University, Kumamoto 860 (Japan)

Velocity interferometry diagnostics are used to monitor transmitted compressive shock and release waves in yttria (Y{sub 2}O{sub 3})-stabilized tetragonal and cubic zirconia. In tetragonal zirconia compressive yielding due to lattice slip or lattice instability is observed at 13--17 GPa and again at 30--31 GPa. This represents an additional fine structure to the dynamic compression of zirconia that has not previously been observed. A correlation with initial sample density is seen for the lower-amplitude yield. A single yield over the range of the data occurs at 5--6 GPa for cubic zirconia. Approximately 4%--6% porosity in the cubic zirconia accounts for initial yield somewhat lower than earlier studies. From unloading wave profile measurements, initial release wave velocities at the Hugoniot state and stress derivatives of these data are determined. Release moduli data increase monotonically over a Hugoniot stress range of 11--45 GPa. A stress derivative of this data of {ital K}{sup {prime}}{sub {ital l}} = 1.85 is obtained. Stress derivatives determined directly from the initial release slope of individual profiles are significantly higher and suggest deformation or phase transformation kinetics on release. Release waves from Hugoniot states of 11--13 GPa suggest formation of a rarefaction shock and may imply a dynamic stress-induced transformation not indicated by the shock profile. A tensile spall strength of 1.6 GPa was determined for the tetragonal zirconia. This high value may be related to the large fracture toughness of this transformation-toughened ceramic.

• DOE Contract Number: AC04-76DP00789
• OSTI ID: 7238036
• Journal Information: Journal of Applied Physics; (United States), Journal Name: Journal of Applied Physics; (United States) Vol. 71:10; ISSN 0021-8979; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
CERAMICS
CHALCOGENIDES
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CUBIC LATTICES
DOPED MATERIALS
MATERIALS
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PRESSURE EFFECTS
SHOCK WAVES
TETRAGONAL LATTICES
TRANSITION ELEMENT COMPOUNDS
VERY HIGH PRESSURE
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES