Synthesis of As-sintered 60NiTi Parts with a High Open Porosity Level

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aut.relation.issue5en_NZ
aut.relation.journalMaterials Researchen_NZ
aut.relation.volume21en_NZ
aut.researcherRamezani, Maziar
dc.contributor.authorKhanlaria, Ken_NZ
dc.contributor.authorRamezani, Men_NZ
dc.contributor.authorKelly, Pen_NZ
dc.contributor.authorCao, Pen_NZ
dc.contributor.authorNeitzert, Ten_NZ
dc.date.accessioned2018-10-01T23:30:24Z
dc.date.available2018-10-01T23:30:24Z
dc.date.copyright2018-01-01en_NZ
dc.date.issued2018-01-01en_NZ
dc.description.abstract60NiTi, despite exhibiting attractive chemical and mechanical properties desirable for biomedical applications, has not yet been processed to a porous structure suitable for general bone replacement applications. In this research, elemental Ni and Ti powders were used to process and manufacture 60NiTi parts by employing conventional press-and-sinter method. Blended Ni and Ti powders provided the possibility of liquid formation in the samples during sintering which leaded to an increase in porosity. Different processing parameters such as pressing pressure, sintering temperature, heating rate and sintering holding time were investigated in a systematic way to obtain 60NiTi parts with approximately 30 Vol.% open porosity. Further, the effects of these processing parameters on the microstructure, phase structure and dimensional stability of the as-sintered parts were investigated. Porous parts with satisfactory dimensional stability were obtained in all cases. It was found that applying lower compaction pressure, final sintering temperatures of above 942°C, faster heating rates and shorter sintering time were beneficial in terms of obtaining parts with more open porosities. Samples sintered at a final temperature of 1050°C did not contain any elemental Ni or Ti material and were ready to be solutionized to obtain hard biocompatible 60NiTi parts.en_NZ
dc.identifier.citationMaterials Research, 21(5), e20180088. Epub July 10, 2018.https://dx.doi.org/10.1590/1980-5373-mr-2018-0088
dc.identifier.doi10.1590/1980-5373-MR-2018-0088en_NZ
dc.identifier.issn1516-1439en_NZ
dc.identifier.urihttps://hdl.handle.net/10292/11845
dc.publisherScielo
dc.relation.urihttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392018000500206&lng=en&tlng=en
dc.rightsThis is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
dc.rights.accessrightsOpenAccessen_NZ
dc.subject60NiTi; Open porosity; Conventional press-and-sinter; Biomedical
dc.titleSynthesis of As-sintered 60NiTi Parts with a High Open Porosity Levelen_NZ
dc.typeJournal Article
pubs.elements-id341942
pubs.organisational-data/AUT
pubs.organisational-data/AUT/Design & Creative Technologies
pubs.organisational-data/AUT/Design & Creative Technologies/Engineering, Computer & Mathematical Sciences
pubs.organisational-data/AUT/PBRF
pubs.organisational-data/AUT/PBRF/PBRF Design and Creative Technologies
pubs.organisational-data/AUT/PBRF/PBRF Design and Creative Technologies/PBRF ECMS
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