Preparation of Titanium Alloy/Bioactive Glass Composite for Biomedical Applications via Selective Laser Melting

Abstract

Selective laser melting (SLM) is widely used for the additive manufacturing (AM) of metal components, which can produce net shape complex geometries. Novel titanium alloy/bioactive glass composites were successfully fabricated via SLM method for biomedical applications. The fabricated composites contained a Ti 5 Si 3 phase, which resulted from the reaction between the titanium alloy and the bioactive glass. The phase can improve the bonding strength between composite and bone. Additionally, the remained amorphous bioactive glass phase could improve bioactivity. The present study opens a new avenue for developing new titanium alloy/bioactive glass composites with optimal bioactivity and bonding strength with the bone.

Laser cladding of bioactive glass coating on pure titanium substrate with highly refined grain structure

“…Moreover, the complete melting of the glass results in obtaining a high relative density in its volume, which is beneficial in terms of cladded track strength [43]. Furthermore, the complete melting, compared to the partial melting of glass, results in its lower tendency to crystallization [44,45].…”

Bioactive Glass—An Extensive Study of the Preparation and Coating Methods

“…The powder or paste material can also be deposited on the surface of the substrate, then melted with a laser beam [162]. Bioactive glass coatings obtained using this technique were applied to Ti-6Al-4V alloy substrates [163,164]. In addition to the 45S5 bioactive glass, S520 type bioactive glass coatings were obtained.…”