The size effect of crystalline inclusions on the fracture modes in glass-ceramic materials

Charitidis, CA; Karakasidis, TE; Kavouras, P; Karakostas, Th

dc.contributor.author	Charitidis, CA	en
dc.contributor.author	Karakasidis, TE	en
dc.contributor.author	Kavouras, P	en
dc.contributor.author	Karakostas, Th	en
dc.date.accessioned	2014-03-01T01:27:27Z
dc.date.available	2014-03-01T01:27:27Z
dc.date.issued	2007	en
dc.identifier.issn	0953-8984	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/18451
dc.subject	Size Effect	en
dc.subject.classification	Physics, Condensed Matter	en
dc.subject.other	Crack propagation	en
dc.subject.other	Crystalline materials	en
dc.subject.other	Glass ceramics	en
dc.subject.other	Grain size and shape	en
dc.subject.other	Parameter estimation	en
dc.subject.other	Crystallite inclusions	en
dc.subject.other	Fracture modes	en
dc.subject.other	Microindentation	en
dc.subject.other	Inclusions	en
dc.title	The size effect of crystalline inclusions on the fracture modes in glass-ceramic materials	en
heal.type	journalArticle	en
heal.identifier.primary	10.1088/0953-8984/19/26/266209	en
heal.identifier.secondary	http://dx.doi.org/10.1088/0953-8984/19/26/266209	en
heal.identifier.secondary	266209	en
heal.language	English	en
heal.publicationDate	2007	en
heal.abstract	The main parameters influencing the mechanical performance of glass-ceramic materials are the shape and mean size of the ceramic phase, i.e.the crystalline inclusions. The aim of the present work is twofold: first, to study the effect of the above parameters on the modes of fracture in two kinds of glass-ceramic materials by the use of the static microindentation technique; second, to interpret the experimental results by the application of a simple physical model. It was found that reduction in the size of granularly shaped crystallite inclusions or reduction of the width of needle-like crystalline inclusions results in an increase of the extent of crack propagation, while the fracture mode shifts from intergranular to transgranular. These observations were successfully interpreted in terms of energetic arguments related to the size of the crystalline inclusions with respect to the width of a disordered zone acting as an interface between them and the amorphous matrix. © IOP Publishing Ltd.	en
heal.publisher	IOP PUBLISHING LTD	en
heal.journalName	Journal of Physics Condensed Matter	en
dc.identifier.doi	10.1088/0953-8984/19/26/266209	en
dc.identifier.isi	ISI:000247400700017	en
dc.identifier.volume	19	en
dc.identifier.issue	26	en