Effect of the particle size and solids volume fraction on the thermal degradation behaviour of Invar 36 feedstocks

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dc.contributor.author Hidalgo García, Javier
dc.contributor.author Fernández Blázquez, Juan Pedro
dc.contributor.author Jiménez Morales, Antonia
dc.contributor.author Barriere, T.
dc.contributor.author Gelin, J. C.
dc.contributor.author Torralba Castello, José Manuel
dc.date.accessioned 2014-03-07T09:06:58Z
dc.date.issued 2014-03-07
dc.identifier.bibliographicCitation Polymer Degradation and Stability, 98(12), pp. 2546-2555
dc.identifier.issn 0141-3910 (print)
dc.identifier.issn 1873-2321 (online)
dc.identifier.uri http://hdl.handle.net/10016/18367
dc.description.abstract Degradation kinetics and the thermal stability of Invar 36 powder injection moulding feedstocks (PIM) based on cellulose acetate butyrate (CAB) and polyethylene glycol (PEG) binders were investigated using simultaneous thermogravimetric analysis (STA) and differential scanning calorimetry (DSC). The initial decomposition temperature (IDT) and the integral procedure decomposition temperature (IPDT) were used to analyse the thermal stability of the binder system as a function of the solid loading content and powder particle size. The degradation kinetics was studied, and the process apparent activation energies were assessed using isoconversional methods. All the methodologies revealed changes in the thermal degradation behaviours of the feedstocks for solid loadings that were previously determined to correspond to optimal solid loadings using other experimental procedures. The studies also contrast previous similar findings with a ceramic powder. Therefore these results strengthen the proposal of thermodynamic degradation studies of feedstocks as an alternative or complementary technique to determine optimal solid loading contents in metal injection moulding (MIM).
dc.description.sponsorship The authors a wish to thank GUZMÁN GLOBAL S.L. and MIM TECH ALFA for their collaboration on the ECOPIM project (ref. IPT 2011 0931 20000) that was funded by the Spanish Ministry of the Economy and Competitiveness. Furthermore, the authors would like to acknowledge the strong support from the ESTRUMAT projects (ref. S2009/MAT 1585), which were funded by the CAM Consejería Educación Dir. Gral. Universidades e Investigación, and from the COMETAS project (ref. MAT2009/14448 C02 02), which was funded by the Spanish Ministry of the Economy and Compet itiveness. J.P.F. B. acknowledges support from “Marie Curie” Amarout Europe Program.
dc.format.mimetype application/pdf
dc.language.iso eng
dc.rights © 2013 Elsevier Ltd.
dc.subject.other Powder injection moulding
dc.subject.other Invar 36
dc.subject.other Cellulose acetate butyrate
dc.subject.other Polyethylene glycol
dc.subject.other Thermal degradation
dc.title Effect of the particle size and solids volume fraction on the thermal degradation behaviour of Invar 36 feedstocks
dc.type article
dc.relation.publisherversion http://dx.doi.org/10.1016/j.polymdegradstab.2013.09.015
dc.subject.eciencia Materiales
dc.identifier.doi 10.1016/j.polymdegradstab.2013.09.015
dc.rights.accessRights openAccess
dc.relation.projectID Comunidad de Madrid. S2009/MAT-1585/ESTRUMAT
dc.type.version acceptedVersion
dc.identifier.publicationfirstpage 2546
dc.identifier.publicationissue 12
dc.identifier.publicationlastpage 2555
dc.identifier.publicationtitle Polymer degradation and stability
dc.identifier.publicationvolume 98
dc.identifier.uxxi AR/0000014503
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