Correlations between strength and acoustic properties in yttria-stabilized zirconia polycrystals

Journal Article · Wed Dec 01 04:00:00 EST 1993 · Journal of the American Ceramic Society; (United States)

DOI:https://doi.org/10.1111/j.1151-2916.1993.tb06624.x· OSTI ID:5432923

Oishi, Manabu; Matsuda, Yukihisa ^[1]; Noguchi, Kenichi; Masaki, Takaki ^[2]

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1. Toray Research Center, Inc., Shiga (Japan)
2. Toray Industries, Inc., Shiga (Japan)

The strength, bulk density, and acoustic properties of nine Y[sub 2]O[sub 3]-stabilized ZrO[sub 2] polycrystals (Y-TZPs) were evaluated in the present study. The samples showed a strong correlation between strength and acoustic properties, a phenomenon that reflects the internal bulk structure, especially the pore size distribution. Strength increased with a decrease in the attenuation coefficient and with an increase in the transverse wave velocity of the samples. On the other hand, the bulk density of the samples showed no clear relationship with strength. Bulk density reflects only the amount of pore volume in the test piece, whereas the acoustic properties are sensitive to defects or inhomogeneities in the micro-structure. The attenuation coefficient and transverse wave velocity thus seem to be good parameters for estimating the strength of Y-TZPs.

• OSTI ID: 5432923
• Journal Information: Journal of the American Ceramic Society; (United States), Journal Name: Journal of the American Ceramic Society; (United States) Vol. 76:12; ISSN 0002-7820; ISSN JACTAW
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360203* -- Ceramics
Cermets
& Refractories-- Mechanical Properties
360204 -- Ceramics
Cermets
& Refractories-- Physical Properties
ACOUSTIC TESTING
CHALCOGENIDES
MATERIALS TESTING
MECHANICAL PROPERTIES
NONDESTRUCTIVE TESTING
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
TENSILE PROPERTIES
TESTING
TRANSITION ELEMENT COMPOUNDS
ULTRASONIC TESTING
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES