Evaluation of sintered hydroxyapatite (HA) via powder injection molding
Hydroxyapatite (HA), a ceramic phosphate with good biocompatibility, has been extensively used in the field of bone replacement, both in orthopedics and in dentistry. Desired molded part of HA is fabricated by using powder injection molding (PIM) method. Powder loading, rheological properties an...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Penerbit Universiti Kebangsaan Malaysia
2020
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| Online Access: | http://journalarticle.ukm.my/17206/ http://journalarticle.ukm.my/17206/1/16.pdf |
| _version_ | 1848814254597079040 |
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| author | Nashrah Hani Jamadon, Nurul Izaan Abdullah Halid, Abu Bakar Sulong, Mohd Hamdi Abd Shukor, Miyashita, Yukio |
| author_facet | Nashrah Hani Jamadon, Nurul Izaan Abdullah Halid, Abu Bakar Sulong, Mohd Hamdi Abd Shukor, Miyashita, Yukio |
| author_sort | Nashrah Hani Jamadon, |
| building | UKM Institutional Repository |
| collection | Online Access |
| description | Hydroxyapatite (HA), a ceramic phosphate with good biocompatibility, has been extensively used in the field of bone
replacement, both in orthopedics and in dentistry. Desired molded part of HA is fabricated by using powder injection
molding (PIM) method. Powder loading, rheological properties and sintering atmosphere can significantly affect the quality
of molded HA. The effect of these factors on the microstructure and mechanical properties of powder injection molded HA
were investigated. Different powder loading of HA (54, 55 and 56 vol%), were mixed with binder 40 wt.% of palm stearin
and 60 wt.% polyethylene. The temperature injection were set at 150°C, 160°C and 170°C with the pressure injection of 12
bar. The green body were then sintered in the furnace at temperature of 1100°C, 1200°C and 1300°C for 4 hours. Analysis
of variance (ANOVA) is used to determine the optimization of injection molding. Based on the analysis, it was found that
56 vol% powder loading, temperature injection at 150°C up to 170°C and 12 bar pressure injection are the optimum
parameters for the process of injection molding. Results further demonstrate that the optimum condition involves the
specified HA with temperature injection at 170°C and sintered at 1300°C provides the highest hardness value and flexural
strength of 690 Hv and 17.75 MPa respectively. |
| first_indexed | 2025-11-15T00:31:10Z |
| format | Article |
| id | oai:generic.eprints.org:17206 |
| institution | Universiti Kebangasaan Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T00:31:10Z |
| publishDate | 2020 |
| publisher | Penerbit Universiti Kebangsaan Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | oai:generic.eprints.org:172062021-07-27T02:35:47Z http://journalarticle.ukm.my/17206/ Evaluation of sintered hydroxyapatite (HA) via powder injection molding Nashrah Hani Jamadon, Nurul Izaan Abdullah Halid, Abu Bakar Sulong, Mohd Hamdi Abd Shukor, Miyashita, Yukio Hydroxyapatite (HA), a ceramic phosphate with good biocompatibility, has been extensively used in the field of bone replacement, both in orthopedics and in dentistry. Desired molded part of HA is fabricated by using powder injection molding (PIM) method. Powder loading, rheological properties and sintering atmosphere can significantly affect the quality of molded HA. The effect of these factors on the microstructure and mechanical properties of powder injection molded HA were investigated. Different powder loading of HA (54, 55 and 56 vol%), were mixed with binder 40 wt.% of palm stearin and 60 wt.% polyethylene. The temperature injection were set at 150°C, 160°C and 170°C with the pressure injection of 12 bar. The green body were then sintered in the furnace at temperature of 1100°C, 1200°C and 1300°C for 4 hours. Analysis of variance (ANOVA) is used to determine the optimization of injection molding. Based on the analysis, it was found that 56 vol% powder loading, temperature injection at 150°C up to 170°C and 12 bar pressure injection are the optimum parameters for the process of injection molding. Results further demonstrate that the optimum condition involves the specified HA with temperature injection at 170°C and sintered at 1300°C provides the highest hardness value and flexural strength of 690 Hv and 17.75 MPa respectively. Penerbit Universiti Kebangsaan Malaysia 2020 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/17206/1/16.pdf Nashrah Hani Jamadon, and Nurul Izaan Abdullah Halid, and Abu Bakar Sulong, and Mohd Hamdi Abd Shukor, and Miyashita, Yukio (2020) Evaluation of sintered hydroxyapatite (HA) via powder injection molding. Jurnal Kejuruteraan, 32 (4). pp. 671-676. ISSN 0128-0198 https://www.ukm.my/jkukm/volume-324-2020/ |
| spellingShingle | Nashrah Hani Jamadon, Nurul Izaan Abdullah Halid, Abu Bakar Sulong, Mohd Hamdi Abd Shukor, Miyashita, Yukio Evaluation of sintered hydroxyapatite (HA) via powder injection molding |
| title | Evaluation of sintered hydroxyapatite (HA) via powder injection molding |
| title_full | Evaluation of sintered hydroxyapatite (HA) via powder injection molding |
| title_fullStr | Evaluation of sintered hydroxyapatite (HA) via powder injection molding |
| title_full_unstemmed | Evaluation of sintered hydroxyapatite (HA) via powder injection molding |
| title_short | Evaluation of sintered hydroxyapatite (HA) via powder injection molding |
| title_sort | evaluation of sintered hydroxyapatite (ha) via powder injection molding |
| url | http://journalarticle.ukm.my/17206/ http://journalarticle.ukm.my/17206/ http://journalarticle.ukm.my/17206/1/16.pdf |