Interface controlled active fracture modes in glass-ceramics

Kavouras, P; Kehagias, T; Komninou, P; Chrissafis, K; Charitidis, C; Karakostas, T

dc.contributor.author	Kavouras, P	en
dc.contributor.author	Kehagias, T	en
dc.contributor.author	Komninou, P	en
dc.contributor.author	Chrissafis, K	en
dc.contributor.author	Charitidis, C	en
dc.contributor.author	Karakostas, T	en
dc.date.accessioned	2014-03-01T01:28:42Z
dc.date.available	2014-03-01T01:28:42Z
dc.date.issued	2008	en
dc.identifier.issn	0022-2461	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/18923
dc.subject	Fracture Toughness	en
dc.subject.classification	Materials Science, Multidisciplinary	en
dc.subject.other	Crystallization	en
dc.subject.other	Fracture mechanics	en
dc.subject.other	Fracture toughness	en
dc.subject.other	Microhardness	en
dc.subject.other	Silicon compounds	en
dc.subject.other	Ceramic phase	en
dc.subject.other	Fracture modes	en
dc.subject.other	Vitreous products	en
dc.subject.other	Glass ceramics	en
dc.title	Interface controlled active fracture modes in glass-ceramics	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/s10853-007-2221-6	en
heal.identifier.secondary	http://dx.doi.org/10.1007/s10853-007-2221-6	en
heal.language	English	en
heal.publicationDate	2008	en
heal.abstract	The active fracture modes in glass-ceramics, produced by controlled crystallization from three starting vitreous products containing PbO and SiO2, were studied and compared. The goal was to examine the active fracture modes in PbO-rich glass-ceramic materials, where the main glass former was PbO, and compare these results with those reported in the literature, where the main glass former was SiO2. The influence of composition, shape and mean size of the ceramic phase on the active fracture modes of the glass-ceramics was also examined. It was observed that the microhardness and fracture toughness of the starting vitreous products decrease with increasing PbO content. Increase in the relative amount of SiO2 resulted in a decrease of the percentage of the ceramic phase. Glass-ceramics with higher PbO content showed typical behaviour of high toughness material, i.e. intergranular fracture mode, with lower microhardness value. Glass-ceramics with lower PbO content showed typical behaviour of high-strength material, i.e. transgranular fracture mode, with higher microhardness value. © 2008 Springer Science+Business Media, LLC.	en
heal.publisher	SPRINGER	en
heal.journalName	Journal of Materials Science	en
dc.identifier.doi	10.1007/s10853-007-2221-6	en
dc.identifier.isi	ISI:000255878900031	en
dc.identifier.volume	43	en
dc.identifier.issue	11	en
dc.identifier.spage	3954	en
dc.identifier.epage	3959	en