Neutron diffraction measurements of residual stress and mechanical testing of pressure sintered metal-ceramic composite systems

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dc.contributor.authorToppler, Ken_AU
dc.contributor.authorLuzin, Ven_AU
dc.contributor.authorSaleh, Men_AU
dc.contributor.authorRuys, AJen_AU
dc.contributor.authorKabir, Ken_AU
dc.contributor.authorChavara, DTen_AU
dc.date.accessioned2017-03-27T05:08:26Zen_AU
dc.date.available2017-03-27T05:08:26Zen_AU
dc.date.issued2016-12-22en_AU
dc.date.statistics2017-03-07en_AU
dc.description.abstractAbstract. Functionally graded materials (FGMs) are composite materials which vary in phase composition, microstructure and properties over one or more dimensions. They are a good potential choice for nuclear reactor components as they can be engineered to effectively resist corrosion and radiation damage. In the case of a metal-ceramic FGM, they can mate the strength and ductility of a metal with the hardness and toughness of a ceramic. A series of composite samples of variable metal-ceramic ratios was manufactured by hot uniaxial pressing in cylinders. Bulk uniform samples of a certain composition were manufactured as a more efficient way of studying FGMs without the extreme gradient required in practical applications. Thermally and mechanically generated stresses, inherent in composites, frequently create conditions for micro-cracking development, depending on the material’s micro-structural characteristics and the thermo-mechanical processing route. Bulk stress measurements in the prepared samples were carried out on the Kowari diffractometer on the OPAL reactor at ANSTO. Both phases – metal matrix and ceramic inclusions – were measured in both axial and lateral directions for full characterisation of the composite stress state. When compared against analytical evaluation, experimental results, for some samples, demonstrated significant stress relaxation with micro-cracking being the main suspect. Copyright © 2016 by the author(s)en_AU
dc.identifier.booktitleMaterials Research Proceedingen_AU
dc.identifier.citationToppler, K., Luzin, V., Saleh, M., Ruys, A., Kabir, K., & Chavara, D. (2016). Neutron diffraction measurements of residual stress and mechanical testing of pressure sintered metal-ceramic composite systems. Paper presented at the Residual Stresses 2016: ICRS-10. In T. M. Holden, O. Muránsky, & L. Edwards. Materials Research Proceedings, Vol. 2 (pp. 545-550). Millersville, USA: Materials Research Forum LLC. doi:10.21741/9781945291173-92en_AU
dc.identifier.conferenceenddate7 July 2016en_AU
dc.identifier.conferencenameInternational Conference on Residual Stresses 2016: ICRS-10en_AU
dc.identifier.conferenceplaceSydney, Australiaen_AU
dc.identifier.conferencestartdate3 July 2106en_AU
dc.identifier.govdoc7985en_AU
dc.identifier.isbn978-1-94529116-6en_AU
dc.identifier.pagination545-550en_AU
dc.identifier.urihttp://dx.doi.org/10.21741/9781945291173-92en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/8503en_AU
dc.identifier.volume2en_AU
dc.language.isoenen_AU
dc.publisherMaterials Research Forum LLC.en_AU
dc.subjectResidual stressesen_AU
dc.subjectMechanical testsen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectComposite materialsen_AU
dc.subjectOPAL Reactoren_AU
dc.subjectReactor componentsen_AU
dc.subjectCeramicsen_AU
dc.titleNeutron diffraction measurements of residual stress and mechanical testing of pressure sintered metal-ceramic composite systemsen_AU
dc.typeConference Paperen_AU
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