Transformation driving force for indentation cracking in zirconia ceramics

Journal Article · Tue Nov 30 23:00:00 EST 1993 · Journal of the American Ceramic Society; (United States)

DOI:https://doi.org/10.1111/j.1151-2916.1993.tb06620.x· OSTI ID:5495417

Liang, Kaiming; Gu, Koufen ^[1]

---

1. Tsinghua Univ., Beijing (China). Dept. of Materials Science and Engineering

The transformation driving force for indentation cracking in phase-transformation-toughened ZrO[sub 2] ceramics is confirmed with the direct crack measurement method. This driving force is produced by expansion of the plastic zone beneath the indenter due to stress-induced transformation, and it promotes the extension of the indentation cracks. The driving force cannot be neglected when evaluating the indentation fracture toughness of the materials.

• OSTI ID: 5495417
• 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
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360203 -- Ceramics
Cermets
& Refractories-- Mechanical Properties
CERAMICS
CHALCOGENIDES
CRACK PROPAGATION
FRACTURE PROPERTIES
MECHANICAL PROPERTIES
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
TRANSITION ELEMENT COMPOUNDS
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES