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dc.contributor.authorCHANG, FCen_US
dc.contributor.authorCHU, LHen_US
dc.date.accessioned2014-12-08T15:04:57Z-
dc.date.available2014-12-08T15:04:57Z-
dc.date.issued1992-03-25en_US
dc.identifier.issn0021-8995en_US
dc.identifier.urihttp://dx.doi.org/10.1002/app.1992.070440915en_US
dc.identifier.urihttp://hdl.handle.net/11536/3481-
dc.description.abstractThe ductile-brittle transition behavior of polycarbonate and methylmethacrylate-butadiene-styrene (MBS) elastomer modified polycarbonate has been investigated in terms of notch radius and temperature. At -40-degrees-C and 21-mil notch radius, polycarbonate fractures in three possible modes, ductile (25%), semi-ductile (50%), and brittle (25%). This semi-ductile mode fracture has never been reported previously with brittle characterization, but to a greater extent in localized shear yielding on the fracture surface and intermediate toughness. A two-dimensional fracture mode diagram in terms of temperature and notch radius has been constructed to interpret the observed phenomena. This diagram can also predict the existence of other conditions under which the triplet fracture modes may also occur. Another unstable zone has also been identified where the fracture occurs in either ductile mode or brittle mode over a broad temperature range, instead of the narrow temperature range typically observed for polycarbonate. A model based on the excessive precrack strain just below yielding due to the greater notch radius is proposed to explain such observed semi-ductile mode fracture.en_US
dc.language.isoen_USen_US
dc.titleCOEXISTENCE OF DUCTILE, SEMI-DUCTILE, AND BRITTLE FRACTURES OF POLYCARBONATEen_US
dc.typeArticleen_US
dc.identifier.doi10.1002/app.1992.070440915en_US
dc.identifier.journalJOURNAL OF APPLIED POLYMER SCIENCEen_US
dc.citation.volume44en_US
dc.citation.issue9en_US
dc.citation.spage1615en_US
dc.citation.epage1623en_US
dc.contributor.department交大名義發表zh_TW
dc.contributor.department應用化學系zh_TW
dc.contributor.departmentNational Chiao Tung Universityen_US
dc.contributor.departmentDepartment of Applied Chemistryen_US
dc.identifier.wosnumberWOS:A1992HE63900015-
dc.citation.woscount14-
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