Show simple item record

dc.contributor.authorYu, Zhaoju
dc.contributor.authorYang, Le
dc.contributor.authorZhan, Junying
dc.contributor.authorZhou, Cong
dc.contributor.authorMin, Hao
dc.contributor.authorZheng, Qiang
dc.contributor.authorXia, Haiping
dc.contributor.author夏海平
dc.date.accessioned2013-04-01T03:33:55Z
dc.date.available2013-04-01T03:33:55Z
dc.date.issued2012-06
dc.identifier.citationJOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2012,32(10):1291-1298zh_CN
dc.identifier.issn0955-2219
dc.identifier.urihttp://dx.doi.org/10.1016/j.jeurceramsoc.2011.12.015
dc.identifier.uriWOS:000301316900017
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/15438
dc.description.abstractSiC/ZrC/C composites were prepared via pyrolysis of a polymeric precursor, namely AHPCS/Cp2ZrCl2 hybrid precursor prepared by the blend of allylhydridopolycarbosilane (AHPCS) and bis(cyclopentadienyl) zirconium dichloride (Cp2ZrCl2). The cross-linking and polymer-to-ceramic conversion of as-synthesized AHPCS/Cp2ZrCl2 were characterized by means of FTIR, C-13 NMR, TGA, EDS, Raman spectroscopy and XRD. It is suggested that dehydrocoupling, hydrosilylation and dehydrochlorication are involved in the cross-linking of the hybrid precursor, which is responsible for a relatively high ceramic yield of 75.5% at 1200 degrees C. The polymer-to-ceramic conversion is complete at 900 degrees C, and it gives an amorphous ceramic. Further heating at 1350 degrees C induces partial crystallization, and then the characteristic peaks of p-sic and cubic ZrC appear at 1600 degrees C. The effect of the composition of the hybrid precursor is also studied in the work. Crown Copyright (C) 2012 Published by Elsevier Ltd. All rights reserved.zh_CN
dc.description.sponsorshipNational Natural Science Foundation of China [50802079, 51072169]; Natural Science Foundation of Fujian Province of China [2011J01330]zh_CN
dc.language.isoenzh_CN
dc.publisherELSEVIER SCI LTDzh_CN
dc.subjectAHPCS/Cp2ZrCl2 hybrid precursorszh_CN
dc.subjectPrecursors-organiczh_CN
dc.subjectThermal propertieszh_CN
dc.subjectCarbideszh_CN
dc.subjectCompositeszh_CN
dc.titlePreparation, cross-linking and ceramization of AHPCS/Cp2ZrCl2 hybrid precursors for SiC/ZrC/C compositeszh_CN
dc.typeArticlezh_CN


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record