Effect of thermal treatments on the yielding of polycarbonate

Kontou, E

dc.contributor.author	Kontou, E	en
dc.date.accessioned	2014-03-01T01:22:16Z
dc.date.available	2014-03-01T01:22:16Z
dc.date.issued	2005	en
dc.identifier.issn	0021-8995	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/16505
dc.subject	Activation energy	en
dc.subject	Annealing	en
dc.subject	Yielding	en
dc.subject.classification	Polymer Science	en
dc.subject.other	Activation energy	en
dc.subject.other	Annealing	en
dc.subject.other	Cooling	en
dc.subject.other	Elastic moduli	en
dc.subject.other	Glass transition	en
dc.subject.other	Polycarbonates	en
dc.subject.other	Reaction kinetics	en
dc.subject.other	Viscoplasticity	en
dc.subject.other	Liquid nitrogen	en
dc.subject.other	Postyield behavior	en
dc.subject.other	Slow cooling	en
dc.subject.other	Yielding	en
dc.subject.other	Heat treatment	en
dc.subject.other	polycarbonate	en
dc.title	Effect of thermal treatments on the yielding of polycarbonate	en
heal.type	journalArticle	en
heal.identifier.primary	10.1002/app.22077	en
heal.identifier.secondary	http://dx.doi.org/10.1002/app.22077	en
heal.language	English	en
heal.publicationDate	2005	en
heal.abstract	Two different thermal treatments were applied to polycarbonate (PC) in terms of slow cooling (annealed samples) after a thermal treatment at a temperature above the glass-transition temperature or abrupt cooling in a liquid-nitrogen environment (quenched samples). Tensile and compression experiments were performed on the two types of samples at three different effective strain rates. A viscoplastic model based on the fundamental assumptions of the Eyring model and on a kinematic formulation, which separated the viscoelastic and plastic strain, developed in previous works, was used to describe the yield and post-yield behavior of thermally treated PC. The different thermal treatments affected the parameters of the material microstructure. A satisfactory agreement between the experimental data and calculated results was found. (c) 2005 Wiley Periodicals, Inc.	en
heal.publisher	JOHN WILEY & SONS INC	en
heal.journalName	Journal of Applied Polymer Science	en
dc.identifier.doi	10.1002/app.22077	en
dc.identifier.isi	ISI:000231680500034	en
dc.identifier.volume	98	en
dc.identifier.issue	2	en
dc.identifier.spage	796	en
dc.identifier.epage	805	en