Microstructure, mechanical property and corrosion behavior of interpenetrating (HA+β-TCP)/MgCa composite fabricated by suction casting

Structure, mechanical property and corrosion behaviors of (HA + β-TCP)/Mg–5Sn composite with interpenetrating networks

“…In addition, our previous study [19] indicated that the hollow structure of the porous scaffold disappeared due to the filling of alloy into the struts for the composite. There are two main reasons responsible for the resultant compact microstructure: (1) β-TCP exhibits a relative good wettability with Mg alloy [26], which reduces infiltration resistance, and (2) the external pressure exerted during the process of infiltration and solidification accelerates infiltration effectively.…”

“…The three sets of continuous networks had different biodegradation rates, so bone tissue would grow towards the fastest biodegrading network while the remaining networks still maintained their geometrical shape and carried the physiological load for the tissue ingrowth. In our previous study, (HA + β-TCP)/Mg-Ca interpenetrating biomedical composites had also been successfully prepared [19]. By adding suitable content of HA, the mechanical property and corrosion behaviors of the (HA + β-TCP)/Mg-Ca composites can be adjusted and satisfy the requirement of implant materials.…”

The role of titania on the microstructure, biocorrosion and mechanical properties of Mg/HA-based nanocomposites for potential application in bone repair

“…Fabrication Mgmatrix composite (MMC) reinforced with bioactive ceramics [30] is another route to reduce degradation rate of Mg-based alloys. Bioactivity, biocompatibility, and osteo-conductivity of the calcium-phosphate (CaP) based bio-ceramics led to these bio-ceramics became attractive for the fabrication of Mg-based bio-composites as the additives [31][32][33]. In this category, HA as a composition of natural bone is emerged as the major inorganic component in mammalian hard tissues.…”

Facile fabrication of hydrophobic surfaces on mechanically alloyed-Mg/HA/TiO2/MgO bionanocomposites

“…Therefore, there is a high demand to improve the corrosion resistance of Mg alloys to meet the requirement of their clinical applications. The fabrication of Mg-based composites reinforced by bioceramics of natural human bone compositions such as hydroxyapatite (HA) is a promising approach to improve the corrosion behavior [5][6][7][8]. However, HA alone has some disadvantages such as (i) the low melting point of phosphorous (ii) the low bonding strength of HA to the metal substrate, which will ultimately lead to loosening and failure of the implant [9,10].…”