Open AccessFabrication of Magnesium-Carbonate Apatite by Conventional Sintering and Spark Plasma Sintering for Orthopedic Implant Applications
Author(s) -
Iwan Setyadi,
Toto Sudiro,
Bambang Hermanto,
Prima Rizky Oktari,
Achmad Fauzi Kamal,
Ahmad Jabir Rahyussalim,
Bambang Suharno,
Sugeng Supriadi
Publication year - 2022
Publication title -
sains malaysiana
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.251
H-Index - 29
eISSN - 2735-0118
pISSN - 0126-6039
DOI - 10.17576/jsm-2022-5103-22
Subject(s) - spark plasma sintering , materials science , sintering , indentation hardness , magnesium , fabrication , metallurgy , powder metallurgy , microstructure , apatite , relative density , mineralogy , chemistry , medicine , alternative medicine , pathology
Magnesium-Carbonate Apatite (Mg-xCA) is one of the potential magnesium composites to be developed as an alternative biodegradable implant material. Several attempts were made to optimize its characteristics. In this study, Mg-xCA (x = 0, 5, 10, and 15% wt) was prepared by powder metallurgy through warm compaction (WC) and further densified by 2 sintering process methods, namely conventional sintering (CS) and spark plasma sintering (SPS). The characterization included density test, XRD test, microstructure test (OM and SEM-EDS-Mapping), microhardness test, and electrochemical test. The SPS process improves the characteristics of Mg-xCA better than the CS process. The SPS process can increase the relative density by about 0.7-2.4%, increase the hardness by about 2-13%, and reduce the corrosion rate by about 32-49% compared to the initial condition before sintering (WC). The SPS structure has a lower oxygen elemental content than the CS structure. The sintered process with SPS is considered effective for the fabrication of Mg-xCA powder-based composites compared to the CS process.