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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...

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Main Authors: Nashrah Hani Jamadon,, Nurul Izaan Abdullah Halid,, Abu Bakar Sulong,, Mohd Hamdi Abd Shukor,, Miyashita, Yukio
Format: Article
Language:English
Published: Penerbit Universiti Kebangsaan Malaysia 2020
Online Access:http://journalarticle.ukm.my/17206/1/16.pdf
http://journalarticle.ukm.my/17206/
https://www.ukm.my/jkukm/volume-324-2020/
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spelling my-ukm.journal.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/
institution Universiti Kebangsaan Malaysia
building Tun Sri Lanang Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Kebangsaan Malaysia
content_source UKM Journal Article Repository
url_provider http://journalarticle.ukm.my/
language English
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.
format Article
author Nashrah Hani Jamadon,
Nurul Izaan Abdullah Halid,
Abu Bakar Sulong,
Mohd Hamdi Abd Shukor,
Miyashita, Yukio
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
author_facet Nashrah Hani Jamadon,
Nurul Izaan Abdullah Halid,
Abu Bakar Sulong,
Mohd Hamdi Abd Shukor,
Miyashita, Yukio
author_sort Nashrah Hani Jamadon,
title Evaluation of sintered hydroxyapatite (HA) via powder injection molding
title_short 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_sort evaluation of sintered hydroxyapatite (ha) via powder injection molding
publisher Penerbit Universiti Kebangsaan Malaysia
publishDate 2020
url http://journalarticle.ukm.my/17206/1/16.pdf
http://journalarticle.ukm.my/17206/
https://www.ukm.my/jkukm/volume-324-2020/
_version_ 1706958279019593728
score 13.211869

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