Synthesis of As-sintered 60NiTi Parts with a High Open Porosity Level
60NiTi, 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 60Ni...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)
2018-07-01
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| Series: | Materials Research |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392018000500206&tlng=en |
| _version_ | 1798019501451640832 |
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| author | Khashayar Khanlari Maziar Ramezani Piaras Kelly Peng Cao Thomas Neitzert |
| author_facet | Khashayar Khanlari Maziar Ramezani Piaras Kelly Peng Cao Thomas Neitzert |
| author_sort | Khashayar Khanlari |
| collection | DOAJ |
| description | 60NiTi, 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. |
| first_indexed | 2024-04-11T16:41:47Z |
| format | Article |
| id | doaj.art-9161df219d4a41668fe0aa85e757b9cb |
| institution | Directory Open Access Journal |
| issn | 1516-1439 |
| language | English |
| last_indexed | 2024-04-11T16:41:47Z |
| publishDate | 2018-07-01 |
| publisher | Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol) |
| record_format | Article |
| series | Materials Research |
| spelling | doaj.art-9161df219d4a41668fe0aa85e757b9cb2022-12-22T04:13:40ZengAssociação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)Materials Research1516-14392018-07-0121510.1590/1980-5373-mr-2018-0088Synthesis of As-sintered 60NiTi Parts with a High Open Porosity LevelKhashayar Khanlarihttps://orcid.org/0000-0003-0320-8280Maziar RamezaniPiaras KellyPeng CaoThomas Neitzerthttps://orcid.org/0000-0001-5701-003X60NiTi, 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.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392018000500206&tlng=en60NiTiOpen porosityConventional press-and-sinterBiomedical |
| spellingShingle | Khashayar Khanlari Maziar Ramezani Piaras Kelly Peng Cao Thomas Neitzert Synthesis of As-sintered 60NiTi Parts with a High Open Porosity Level Materials Research 60NiTi Open porosity Conventional press-and-sinter Biomedical |
| title | Synthesis of As-sintered 60NiTi Parts with a High Open Porosity Level |
| title_full | Synthesis of As-sintered 60NiTi Parts with a High Open Porosity Level |
| title_fullStr | Synthesis of As-sintered 60NiTi Parts with a High Open Porosity Level |
| title_full_unstemmed | Synthesis of As-sintered 60NiTi Parts with a High Open Porosity Level |
| title_short | Synthesis of As-sintered 60NiTi Parts with a High Open Porosity Level |
| title_sort | synthesis of as sintered 60niti parts with a high open porosity level |
| topic | 60NiTi Open porosity Conventional press-and-sinter Biomedical |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392018000500206&tlng=en |
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