Powder injection molding of HA/Ti6Al4V composite using palm stearin as based binder for implant material

Arifin, Amir; Sulong, Abu Bakar; Muhamad, Norhamidi; Syarif, Junaidi; Ramli, Mohd Ikram

doi:10.1016/j.matdes.2014.10.039

Cited by 53 publications

(32 citation statements)

References 27 publications

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“…Although some argue that these micropores can be beneficial (e.g.in transporting body fluids and nutrients in biomedical applications [27]), the presence of such micropores can negatively impact the mechanical properties of foams by reducing the load bearing cross sectional area of the cell walls [28]. The true density was found to be equal to 4.5 g/cm 3 which is equivalent to the density of Ti and an indication that all pores present are open pores, whereas the foam density was equal to 2.005 g/cm 3 meaning that the volume percentage of porosity is equal to 55%. This percentage is much higher than the volume percentage of the space holder which was about 27.5% vol.…”

Section: Sintering Resultsmentioning

confidence: 99%

“…One such method is Metal Injection Moulding (MIM) in combination with the space holder method. MIM itself offers several advantages as a production process, and there is ongoing development of new binder systems adapted to different materials [3][4][5]. For foams, this technique offers several advantages over other foaming techniques, such as the potential for high volume production and the ability to produce complex near net shapes without the need for subsequent grinding and machining, which can result in closure and contamination of the pores with wear debris [6].…”

Section: Introductionmentioning

confidence: 99%

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Design of water debinding and dissolution stages of metal injection moulded porous Ti foam production

Shbeh

Goodall

2015

Materials & Design

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Section: Sintering Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design of water debinding and dissolution stages of metal injection moulded porous Ti foam production

Shbeh

Goodall

2015

Materials & Design

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“…% Ti-6Al-4V and 10 wt. % HA at a speed of 100 rpm for 2 h, as reported by Arifin et al (2015). 80 wt.…”

Section: Methodsmentioning

confidence: 67%

Effect of Space Holders on Fabrication of Porous Titanium Alloy-Hydroxyapatite Composite through Powder Injection Molding

Salleh

Sulong²,

Raza³

et al. 2017

JSM

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“…[36][37][38] The apatite FE-SEM morphology of the investigated samples after immersion in the simulated physiological solution for seven days is exhibited in Fig. 6.…”

Section: Resultsmentioning

confidence: 99%

Electrochemical Behavior in Simulated Physiological Solution of Ti-Nb-Zr-Calcium Pyrophosphate Composite with Enhanced Bioactivity by Spark Plasma Sintering

Zhang

Zhao

Tan

et al. 2018

J. Electrochem. Soc.

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The potential biomedical application near β-type Ti-35Nb-7Zr alloy with different CPP ceramic additions were evaluated in vitro using electrochemical method and osteoblasts co-cultured. A small amount addition of calcium pyrophosphate (CPP) ceramic induced the formation of oxide film on the surface of the composites that can withstand passive layer breakdown and the onset of localized forms of corrosion. But localized breakdown of the oxide layer occurred on composites as the CPP exceeded 20 wt%. Ti-35Nb-7Zr-10CPP exhibits a wide passive range in the polarization curve and gets a higher potential for inducing growth of bone-like apatite and proliferation of osteoblasts on its surface compared to that of the Ti-35Nb-7Zr, CP Ti and Ti6Al4V (TC4) alloys. The favorable cell viability and growth inside the pores of the composites arise from the rough micro-porous surface and the release of bioactive metal-ceramic phase ions into the physiological environment. Novel near β-type Ti-Nb-based alloys have attracted considerable attention for human bone implants due to their good mechanical properties, high corrosion resistance and low toxicity.1-3 Based on the Ti-Nb binary system, several near β-type Ti alloy containing nontoxic elements (Ta, Zr, Mo and Sn) have recently been developed for biomaterials. [4][5][6][7] Among them, Zr received renewed attention for surgical implants because it shows acceptable mechanical strength, satisfactory biocompatibility and corrosion resistance. In addition, Zr is a neutral element when dissolved in Ti and it can improve the strength. Zr-containing Ti alloys have been developed for commercial biomaterials. [8][9][10][11][12] It is reported that the elastic modulus of a near β-type Ti-Nb-Zr alloy at room temperature are about 40-55 GPa if the alloy composition and heat-treatment conditions are optimized. 10,13,14 This value is close to the elastic modulus of human bones (10-30 GPa) and it is conducive to reducing the stress shielding between natural bones and implants.15 Thus, β-type Ti-Nb-Zr alloys are considered to be one of the most promising alloys for biomedical applications. However, the osseointegration property of Ti-Nb-Zr alloys, which is necessary to promote bone tissue compatibility, is poorer than bio-ceramic materials because they are bio-inert. [15][16][17] Calcium pyrophosphate (Ca 2 P 2 O 7 , CPP) 18,19 is a bioactive ceramic material that has recently attracted wide attention in clinical orthopedic and bone repaired implants due to its similar chemical and crystallographic structure to natural bone apatite mineral. Maeda et al. 20 fabricated a CPP-Nb glass-ceramic, which mainly consisted of α-Ca 2 P 2 O 7 , β-Ca 2 P 2 O 7 and Nb 2 O 5 phases. In vitro tests revealed that CPP ceramic could significantly induce the formation and growth of bone-like apatite on the surface of the material. According to a research work from Lin et al., 21 a porous CPP-5 wt% Na 4 P 2 O 7 •10H 2 O ceramic was fabricated by powder sintering, and was implanted into New Zealand Rabbits. The vivo ...

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Powder injection molding of HA/Ti6Al4V composite using palm stearin as based binder for implant material

Cited by 53 publications

References 27 publications

Design of water debinding and dissolution stages of metal injection moulded porous Ti foam production

Design of water debinding and dissolution stages of metal injection moulded porous Ti foam production

Effect of Space Holders on Fabrication of Porous Titanium Alloy-Hydroxyapatite Composite through Powder Injection Molding

Electrochemical Behavior in Simulated Physiological Solution of Ti-Nb-Zr-Calcium Pyrophosphate Composite with Enhanced Bioactivity by Spark Plasma Sintering

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