COMBINED MODE-I MODE-II FRACTURE OF 12-MOL-PERCENT-CERIA-DOPED TETRAGONAL ZIRCONIA POLYCRYSTALLINE CERAMIC

Authors
TIKARE V CHOI SR
Citation
V. Tikare et Sr. Choi, COMBINED MODE-I MODE-II FRACTURE OF 12-MOL-PERCENT-CERIA-DOPED TETRAGONAL ZIRCONIA POLYCRYSTALLINE CERAMIC, Journal of the American Ceramic Society, 80(6), 1997, pp. 1624-1626
Citations number
18
Categorie Soggetti
Material Science, Ceramics
Journal title
Journal of the American Ceramic Society → ACNP
ISSN journal
00027820
Volume
80
Issue
6
Year of publication
1997
Pages
1624 - 1626
Database
ISI
SICI code
0002-7820(1997)80:6<1624:CMMFO1>2.0.ZU;2-O
Abstract
The mode I, mode II, and combined mode I-mode II fracture behavior of ceria-doped tetragonal zirconia polycrystalline (Ce-TZP) ceramic was s tudied, The single-edge-precracked-beam (SEPB) samples were fractured using the asymmetric four-point-bend geometry. The ratio of mode I to mode II loading was varied by varying the degree of asymmetry in the f our-point-bend geometry. The minimum strain energy density theory best described the mixed-mode fracture behavior of Ce-TZP with the mode I fracture toughness, K-IC = 8.2 +/- 0.6 MPa . m(1/2), and the mode II f racture toughness, K-IIC = 8.6 +/- 1.3 MPa . m(1/2).