Book ChapterDOI
Indentation Fracture Toughness of Brittle Materials for Palmqvist Cracks
K. Niihara,R. Morena,D. P. H. Hasselman +2 more
- pp 97-105
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The article was published on 1983-01-01. It has received 89 citations till now. The article focuses on the topics: Fracture toughness & Brittleness.read more
Citations
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Journal ArticleDOI
Direct Observation and Analysis of Indentation Cracking in Glasses and Ceramics
Robert F. Cook,George M. Pharr +1 more
TL;DR: In this paper, the authors investigated the material dependence of the initiation sequence of indentation cracks (cone, radial, median, half-penny, and lateral) using an inverted tester allowing simultaneous viewing of the fracture process and measurement of the indeter load and displacement during contact.
Journal ArticleDOI
On the Vickers Indentation Fracture Toughness Test
George D. Quinn,Richard C. Bradt +1 more
TL;DR: In this article, the Vickers indentation fracture toughness test, or VIF, is addressed by considering its origins and the numerous equations that have been applied along with the technique to estimate the fracture resistance, or the KIc of ceramics.
Journal ArticleDOI
Mechanical properties of toughened ZrO2-Y2O3 Ceramics
TL;DR: In this article, a tritagonal zirconia polycrystals were produced from high purity powders containing 1.5 to 5.0 mol% Y/sub 2/O/sub 3/ by cold isostatic pressing and sintering.
Journal ArticleDOI
Evaluation by indentation of fracture toughness of ceramic materials
TL;DR: In this paper, a new expression to determine the fracture toughness (KIC) by indentation is presented, which is independent of the crack profile (median or Palmqvist) and of the applied load.
Journal ArticleDOI
ZrO2‐Transformation‐Toughened Glass‐Ceramics Prepared by the Sol‐Gel Process from Metal Alkoxides
Masayuki Nogami,Minoru Tomozawa +1 more
TL;DR: The fracture toughness of these glass-ceramics increased with increasing crystallite size of the tetragonal ZrO/sub 2/, reaching approx. = 5.0 Mn/M/sup 32/ at a size of approximately 40 Nm as discussed by the authors.
References
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Journal ArticleDOI
Fracture Toughness Determinations by Indentation
Anthony G. Evans,E. A. Charles +1 more
Journal ArticleDOI
Elastic/Plastic Indentation Damage in Ceramics: The Median/Radial Crack System
TL;DR: In this article, a theory for describing the evolution of the median/radial crack system in the far field of sharp-indenter contacts is developed, based on a model in which the complex elastic/plastic field beneath the indenter is resolved into elastic and residual components.
Journal ArticleDOI
Quasi-static solid particle damage in brittle solids—I. Observations analysis and implications
Anthony G. Evans,T.R. Wilshaw +1 more
TL;DR: In this paper, an approximate stress analysis has indicated the importance of both the impression radius and the ratio of the hardness to the fracture toughness in the development of the observed fractures, which has been used to examine several important consequences of indentation fracture.
Journal ArticleDOI
Equilibrium penny-like cracks in indentation fracture
Brian R. Lawn,Edwin R. Fuller +1 more
TL;DR: In this paper, the authors made a study of the mechanics of two basic types of indentation fracture, cone cracks (blunt indenters) and median cracks (sharp indenters).
Journal ArticleDOI
Fracture Surface Energy of Glass
TL;DR: In this article, the double-cantilever cleavage technique was used to measure the fracture surface energy of six glasses and the results ranged from 3.5 to 5.3 J/m2 depending on the chemical composition of the glass and the temperature of the test.
Related Papers (5)
An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments
Warren C. Oliver,George M. Pharr +1 more