Tensile strength of yttria-stabilized tetragonal zirconia polycrystals

Journal Article · Sat Jul 01 04:00:00 EDT 1989 · Journal of the American Ceramic Society; (USA)

DOI:https://doi.org/10.1111/j.1151-2916.1989.tb09736.x· OSTI ID:5265409

Noguchi, K; Fujita, M; Mizushina, M ^[1]; Masaki, T; Mizushina, M ^[2]

---

1. Toray Research Center, Inc., Otsu, Shiga 520 (JP)
2. Technology Center, Toray Industries, Inc., Otsu, Shiga 520 (JP)

Tensile strengths of 2.0 to 5.0 mol% Y/sub 2/O/sub 3/-stabilized ZrO/sub 2/ polycrystals are described using the newly developed tensile testing method. The tensile test was conducted by attaching three strain gauges on both sides of rectangular bar that was 10 mm by 1 mm by 200 mm. The tensile strength of tetragonal ZrO/sub 2/ polycrystals (TZP) containing 2.0 mol% Y/sub 2/O/sub 3/ showed 745 MPa, whereas the bend strength of this material was 1630 MPa. Inelastic behavior of the stress-strain curve was observed at critical stresses and strains of 500 to 700 MPa and 0.25% to 0.35%, respectively. Although deviation from proportionality was observed to be small, it increased with the increase of temperature from -100{sup 0} to 200{sup 0}C.

• OSTI ID: 5265409
• Journal Information: Journal of the American Ceramic Society; (USA), Journal Name: Journal of the American Ceramic Society; (USA) Vol. 72:7; ISSN JACTA; ISSN 0002-7820
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360203* -- Ceramics
Cermets
& Refractories-- Mechanical Properties
CHALCOGENIDES
CHEMICAL COMPOSITION
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CRYSTALS
MECHANICAL PROPERTIES
OXIDES
OXYGEN COMPOUNDS
POLYCRYSTALS
STRESSES
TEMPERATURE DEPENDENCE
TENSILE PROPERTIES
TETRAGONAL LATTICES
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES