A5066338534- Orthopaedic implants and arthroplasty
- Additive Manufacturing and 3D Printing Technologies
- Injection Molding Process and Properties
- Bone Tissue Engineering Materials
- Titanium Alloys Microstructure and Properties
- Advanced materials and composites
- biodegradable polymer synthesis and properties
- Welding Techniques and Residual Stresses
- Dental materials and restorations
- Innovations in Concrete and Construction Materials
- Microstructure and Mechanical Properties of Steels
- Powder Metallurgy Techniques and Materials
- Metal Alloys Wear and Properties
- Conducting polymers and applications
- Manufacturing Process and Optimization
- Advanced Sensor and Energy Harvesting Materials
- Shape Memory Alloy Transformations
- Carbon Nanotubes in Composites
- Advanced Welding Techniques Analysis
- Surface Treatment and Residual Stress
- Material Selection and Properties
National Institutes of Biotechnology Malaysia
2022
National University of Malaysia
2013-2022
City University College of Science and Technology
2020
University Kebangsaan Malaysia Medical Centre
2014
This paper presents an alternative approach in powder injection moulding (PIM) process by highlighting the advantages of using irregular-shaped and bimodal size Ti6Al4V-HA composite. An investigation on rheological behaviour feedstock at a ratio 90:10 weight percent was done spherical irregular shapes Ti6Al4V particle, together with palm stearin polyethylene acts as binder system. Subsequent to results, critical volume percentage (CPVP) value improved 5–8 vol. %. Furthermore, shows...
The combination of metallic bio-inert material, stainless-steel 316L (SS316L) and a bio-active hydroxyapatite (HA) can produce composite which has superior properties for orthopaedic applications. main objective this study is to investigate the effects sintering temperature holding time on physical mechanical sintered part. 50wt.% SS316L HA were mixed with binder system palm stearin (PS) polyethylene (PE) at 61 vol.% powder loading. Rheological show pseudo-plastic behaviour feedstock, where...
The development of porous metal structures, especially for the use titanium alloys in bone implant applications, has attracted attention researchers. However, forming structures composites via powder injection molding (PIM) remains early stages analysis, allowing determination processing parameters to be studied greater detail. In this study, critical PIM alloy titanium–hydroxyapatite were identified space holder method. Titanium (Ti6Al4V) was mixed with hydroxyapatite (HA) at a weight...
Shape memory alloys (SMAs) are a class of smart materials that have the unusual feature remembering initial shape after plastic deformation. SMAs differ from traditional elastic/plastic in because reversible hysteretic thermos mechanical behavior. Copper (Cu) based most promising terms practical application due to their inexpensive cost and high recovery force. Powder injection molding (PIM) is well known for creation complex components (micro parts) Aluminium Manganese (CuAlMn) studied...
Metal Injection Molding (MIM) is widely known as net shape process to mass production for complex shape. In this study polyethylene and palm stearin was used binder system composite HA Ti6Al4V. Ti6Al4V has spherical with particle size 25 μm Hydroxyapatite 5 μm. Brabender ® mix powder making feedstock, rheological properties of feedstock examined by capillary rheometer. Effects temperature, viscosity, shear rate activation energy were discussed in paper. Binder removed thermal debinding....
Powder injection moulding is a manufacturing process capable of producing complex, precise and net-shaped components from metal or ceramic powders at competitive cost. This study investigated the rheological properties stainless steel 316L–hydroxyapatite composite by using palm stearin polyethylene as binder system, evaluates physical mechanical properties, composition change sintered part different temperatures through powder process. Stainless 316L was mixed with hydroxyapatite adding...
Pembangunan bahan komposit aloi titanium (Ti6Al4V)/wolastonit (WA) semakin mendapat permintaan yang tinggi terutamanya dalam aplikasi implan tulang. Ti6Al4V adalah sejenis logam terkenal dengan sifat mekanik dan bioserasi manakala seramik WA merupakan biokaca bersifat bioaktif sesuai untuk dijadikan implan. Proses pengacuan suntikan serbuk (PIM) proses teknologi boleh menghasilkan jasad kecil berbentuk kompleks pada kos rendah. Ketumpatan anum rendah menyebabkan kecacatan seperti retakan...
This study focuses on the synthesis of hydroxyapatite (HA) from bovine bones through calcination and subsequent combination with Polyvinyl Alcohol (PVA) using Cold Sintering Process (CSP). The CSP, operating at lower temperatures than conventional methods, aims to preserve bioactivity biocompatibility HA, crucial for biomedical applications. research investigates influence HA composition, sintering temperature, PVA content porosity compressive strength HA-PVA composite. Hydroxyapatite...
The 3D printing has fundamentally transformed the approach to object design and manufacturing, enabling costeffective production of intricate customized components. This study aims investigate rheological mechanical properties Poly-lactic Acid (PLA)/Wollastonite (WA) composite filaments for printing, particularly bone implant applications. powder composition used is 90 wt.% PLA 10 WA. blending process was conducted at a temperature 190°C torque value 30 rpm. Capillary rheometer testing...
AISI 1037 and 304 steels are widely used across various industrial sectors, including manufacturing, transportation, petrochemical, automotive industries. In this study, the effect of preheating on toughness dissimilar welded joints between 304, joined by Shielded Metal Arc Welding (SMAW) using E309-16 electrodes, was investigated. The process performed prior to welding, its influence joint's assessed through impact testing. Additionally, hardness profile joint evaluated...
This study explores the effect of preheating on toughness dissimilar welded joints between AISI 1037 and 304 steels, using Shielded Metal Arc Welding (SMAW) E309-16 electrodes. The innovation this approach lies in assessing how temperatures influence mechanical properties such welds. Preheating ranged from 150 °C to 300 °C, with impact testing revealing a notable increase toughness, 6.01 Joules at 19.57 °C. Hardness tests indicated maximum hardness 313 VHN fusion zone minimum 185 area....
The combination of a metallic bioinert material, stainless steel 316L (SS316L) and bioactive hydroxyapatite (HA) can produce composite material which has superior properties for orthopaedic applications. main objective this study is to investigate the effects sintering temperature time on physical mechanical sintered part. 50wt.% SS316L HA were mixed with binder system consisted palm stearin (PS) polyethylene (PE) 61.0vol.% powder loading. Rheological show pseudoplastic behavior feedstock,...
Powder injection moulding (PIM) is a process that combines the technologies of plastic and powder metallurgy. The fabrication titanium alloy-hydroxyapatite (Ti6Al4V/HA) composite using PIM still poorly reported due to difficulties in processing two different materials namely metal ceramic. Such promising can be proposed as an implant material its great properties. Hence, this work aims characterise properties Ti6Al4V/HA produced by PIM. In work, 90 wt% Ti6Al4V 10 HA were mixed with binder...