Indentation brittleness of ceramics : a fresh approach

The hardness and brittleness of ceramic materials are interrelated. Hard materials are more apt to fracture in the vicinity of an indentation during a hardness test, while softer materials tend to plastically deform to the indenter shape without fracturing. Measured hardness, in turn, is affected by...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	Journal of materials science 1997-08, Vol.32 (16), p.4331-4346
Hauptverfasser:	QUINN, J. B, QUINN, G. D
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Brittleness Building materials. Ceramics. Glasses Ceramic industries Chemical industry and chemicals Deformation Diamond pyramid hardness Exact sciences and technology General studies Hard materials Hardness Hardness tests Indentation Materials science Technical ceramics
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The hardness and brittleness of ceramic materials are interrelated. Hard materials are more apt to fracture in the vicinity of an indentation during a hardness test, while softer materials tend to plastically deform to the indenter shape without fracturing. Measured hardness, in turn, is affected by both specimen deformation and fracture processes. This interrelationship is examined by means of extensive Vickers hardness testing. A new index of brittleness is proposed.
ISSN:	0022-2461 1573-4803
DOI:	10.1023/A:1018671823059