Semi-solid processing of porous magnesium using Titanium Wire Space Holder (TWSH) for biodegradable bone scaffold application

• Main Authors: Irza, Sukmana, Ulin, Herlina, Anton Sapto, Handoko, Erik, Prasetyo, Yanuar, Burhanuddin, Tarkono, Tarkono, Fauzi, Ibrahim, Yanuar Zulardiansyah, Arief
• Format: Article
• Language: English
• Published: AIP Publishing 2023
• Subjects: TJ Mechanical engineering and machinery
• Online Access: http://ir.unimas.my/id/eprint/43755/3/Semi-solid.pdf; http://ir.unimas.my/id/eprint/43755/; https://pubs.aip.org/aip/acp/article-abstract/2601/1/020022/2894132/Semi-solid-processing-of-porous-magnesium-using?redirectedFrom=fulltext; https://doi.org/10.1063/5.0129762
• Institution: Universiti Malaysia Sarawak

Porous magnesium is one of the materials that can be used as a bulk bone implant (Scaffold) because it can be used in human body tissues and is biodegradable, non-toxic and resembles natural bones. The shape of the pore in magnesium with interconnections that resemble the original bone is a challenge in the manufacture of porous magnesium for bone scaffold material. Therefore, research activities to make porous magnesium using Titanium Wire Space Holder (TWSH) with a semi-solid process to produce bone scaffold material that is biodegradable. The process carried out in this study is to compact and sinter the powder magnesium material with titanium wire using a squeeze casting tool in a semi-solid process, then dissolved using a solution of hydro fluoride acid to form porous magnesium. The tests performed are corrosion rate, density and porosity, hardness and SEM-EDX. This study succeeded in fabricating porous magnesium, which has the potential to be a bone scaffold material where the variation of the test material that approaches bone properties is a specimen with a sintering temperature of 570 °C with composition of Ti:Mg=2:3.