Effect of flaws on the fracture behavior of structural ceramics: A review

Journal Article · Fri Jan 01 04:00:00 EST 1988 · Advanced Ceramic Materials; (USA)

DOI:https://doi.org/10.1111/j.1551-2916.1988.tb00163.x· OSTI ID:5941823

Singh, J P ^[1]

---

1. Argonne National Lab., IL (USA)

Ceramic materials have been recognized as potential candidates for use in structural applications by virtue of their potentially excellent mechanical integrity and chemical stability at high temperatures. These structural applications include advanced heat engines, heat exchangers, and components subjected to friction and wear. Important structural ceramics include Si{sub 3}N{sub 4}, SiC, and toughened ZrO{sub 2}. It has been observed that the mechanical properties of these ceramics, especially the strength, are often degraded by the presence of flaws. The effective service strength can be increased by eliminating the flaws or eliminating parts that contain flaws. This type of quality assurance requires nondestructive evaluation (NDE) techniques to detect flaws and an understanding of the effect of flaws on fracture behavior; the latter area has been the subject of considerable experimental and theoretical work. This paper presents a critical review of the literature in terms of the ability to predict fracture behavior from flaws detected by NDE.

• OSTI ID: 5941823
• Journal Information: Advanced Ceramic Materials; (USA), Journal Name: Advanced Ceramic Materials; (USA) Vol. 3:1; ISSN ACEME; ISSN 0883-5551
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360203* -- Ceramics
Cermets
& Refractories-- Mechanical Properties
42 ENGINEERING
420500 -- Engineering-- Materials Testing
CARBIDES
CARBON COMPOUNDS
CERAMICS
CHALCOGENIDES
DOCUMENT TYPES
FRACTURE PROPERTIES
MATERIALS TESTING
MEASURING METHODS
MECHANICAL PROPERTIES
NITRIDES
NITROGEN COMPOUNDS
NONDESTRUCTIVE TESTING
OXIDES
OXYGEN COMPOUNDS
PNICTIDES
QUALITY ASSURANCE
REVIEWS
SILICON CARBIDES
SILICON COMPOUNDS
SILICON NITRIDES
TESTING
TRANSITION ELEMENT COMPOUNDS
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES