Stainless steel 316L-hydroxyapatite composite via powder injection moulding

Rheological and mechanical properties characterisation

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Powder injection moulding is a manufacturing process capable of producing complex, precise and net-shaped components from metal or ceramic powders at a competitive cost. This study investigated the rheological properties of stainless steel 316L-hydroxyapatite composite by using palm stearin and polyethylene as a binder system, evaluates the physical and mechanical properties, and composition change of the sintered part at different temperatures through powder injection moulding process. Stainless steel 316L powder was mixed with hydroxyapatite by adding a binder system (palm stearin and polyethylene) at 580 vol% powder loading prepared via critical powder volume percentage. A green dumbbell-shaped part was produced via plunger-type injection moulding. The green part was sintered at 1000, 1100, 1200 and 1300°C at 3 hours. The value of flow behaviour index n is from 01 to 039, which is within range of the injectability index. The obtained activation energy is 575 kJ mol1. Morphological results indicate the formation of pores at a sintering temperature of 1000°C, a decrease of pores when the temperature is increased, and the occurrence of densification. At 1300°C it showed the highest mechanical properties of Young's modulus which is 4118 GPa. The decomposition of hydroxyapatite into -tricalcium phosphate and tetracalcium phosphate phases started to occur at 1000 and 1100°C, respectively. The highest sintered density is 37744 g cm3 which is close to the density of hydroxyapatite but the mechanical properties is higher than pure hydroxyapatite.

Original languageEnglish
Pages (from-to)S6-100-S6-104
JournalMaterials Research Innovations
Volume18
DOIs
Publication statusPublished - 18 Dec 2014

Fingerprint

injection molding
Stainless Steel
Durapatite
Hydroxyapatite
Injection molding
Powders
stainless steels
Stainless steel
mechanical properties
Mechanical properties
composite materials
Composite materials
Polyethylene
Binders
Polyethylenes
polyethylenes
phosphates
Phosphates
plungers
porosity

Keywords

  • Hydroxyapatite-stainless steel 316L composite
  • Physical properties
  • Powder injection moulding
  • Rheological properties

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

Cite this

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title = "Stainless steel 316L-hydroxyapatite composite via powder injection moulding: Rheological and mechanical properties characterisation",
abstract = "Powder injection moulding is a manufacturing process capable of producing complex, precise and net-shaped components from metal or ceramic powders at a competitive cost. This study investigated the rheological properties of stainless steel 316L-hydroxyapatite composite by using palm stearin and polyethylene as a binder system, evaluates the physical and mechanical properties, and composition change of the sintered part at different temperatures through powder injection moulding process. Stainless steel 316L powder was mixed with hydroxyapatite by adding a binder system (palm stearin and polyethylene) at 580 vol{\%} powder loading prepared via critical powder volume percentage. A green dumbbell-shaped part was produced via plunger-type injection moulding. The green part was sintered at 1000, 1100, 1200 and 1300°C at 3 hours. The value of flow behaviour index n is from 01 to 039, which is within range of the injectability index. The obtained activation energy is 575 kJ mol1. Morphological results indicate the formation of pores at a sintering temperature of 1000°C, a decrease of pores when the temperature is increased, and the occurrence of densification. At 1300°C it showed the highest mechanical properties of Young's modulus which is 4118 GPa. The decomposition of hydroxyapatite into -tricalcium phosphate and tetracalcium phosphate phases started to occur at 1000 and 1100°C, respectively. The highest sintered density is 37744 g cm3 which is close to the density of hydroxyapatite but the mechanical properties is higher than pure hydroxyapatite.",
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author = "Ramli, {M. I.} and Sulong, {Abu Bakar} and Norhamidi Muhamad and Andanastuti Muchtar and A. Arifin",
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T1 - Stainless steel 316L-hydroxyapatite composite via powder injection moulding

T2 - Rheological and mechanical properties characterisation

AU - Ramli, M. I.

AU - Sulong, Abu Bakar

AU - Muhamad, Norhamidi

AU - Muchtar, Andanastuti

AU - Arifin, A.

PY - 2014/12/18

Y1 - 2014/12/18

N2 - Powder injection moulding is a manufacturing process capable of producing complex, precise and net-shaped components from metal or ceramic powders at a competitive cost. This study investigated the rheological properties of stainless steel 316L-hydroxyapatite composite by using palm stearin and polyethylene as a binder system, evaluates the physical and mechanical properties, and composition change of the sintered part at different temperatures through powder injection moulding process. Stainless steel 316L powder was mixed with hydroxyapatite by adding a binder system (palm stearin and polyethylene) at 580 vol% powder loading prepared via critical powder volume percentage. A green dumbbell-shaped part was produced via plunger-type injection moulding. The green part was sintered at 1000, 1100, 1200 and 1300°C at 3 hours. The value of flow behaviour index n is from 01 to 039, which is within range of the injectability index. The obtained activation energy is 575 kJ mol1. Morphological results indicate the formation of pores at a sintering temperature of 1000°C, a decrease of pores when the temperature is increased, and the occurrence of densification. At 1300°C it showed the highest mechanical properties of Young's modulus which is 4118 GPa. The decomposition of hydroxyapatite into -tricalcium phosphate and tetracalcium phosphate phases started to occur at 1000 and 1100°C, respectively. The highest sintered density is 37744 g cm3 which is close to the density of hydroxyapatite but the mechanical properties is higher than pure hydroxyapatite.

AB - Powder injection moulding is a manufacturing process capable of producing complex, precise and net-shaped components from metal or ceramic powders at a competitive cost. This study investigated the rheological properties of stainless steel 316L-hydroxyapatite composite by using palm stearin and polyethylene as a binder system, evaluates the physical and mechanical properties, and composition change of the sintered part at different temperatures through powder injection moulding process. Stainless steel 316L powder was mixed with hydroxyapatite by adding a binder system (palm stearin and polyethylene) at 580 vol% powder loading prepared via critical powder volume percentage. A green dumbbell-shaped part was produced via plunger-type injection moulding. The green part was sintered at 1000, 1100, 1200 and 1300°C at 3 hours. The value of flow behaviour index n is from 01 to 039, which is within range of the injectability index. The obtained activation energy is 575 kJ mol1. Morphological results indicate the formation of pores at a sintering temperature of 1000°C, a decrease of pores when the temperature is increased, and the occurrence of densification. At 1300°C it showed the highest mechanical properties of Young's modulus which is 4118 GPa. The decomposition of hydroxyapatite into -tricalcium phosphate and tetracalcium phosphate phases started to occur at 1000 and 1100°C, respectively. The highest sintered density is 37744 g cm3 which is close to the density of hydroxyapatite but the mechanical properties is higher than pure hydroxyapatite.

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