In this research approach, a β-phase titanium alloy was produced successfully
employing mechanical alloying and consolidated with spark plasma sintering (SPS)
process. Herein, Ni, Si and HA powders with varied weight percentage were used to
fabricate the Ti alloy. The influence of HA addition on microstructure of the alloy
was assessed using optical microscopy route and further amplified using field
emission scanning electron microscopy (FESEM). The elemental composition and
phase of Ti-alloy was investigated using x-ray diffractometer. Vicker hardness (HV)
tester was employed to estimate the micro hardness of the specimen surface. During
the FESEM analysis, it was observed that within the sintering process, alloy exhibits
complex reactions with HA, which leads to the progress of bioactive compounds
(CaO, TiO2, Ca3 (PO4)2, Ti2Ni, CaTiO3 and CaTiSiO5) enhancing the bioactivity of
the Ti alloy. The fabricated Ti alloy (Ti-25Ni-15Si-10HA) exhibited superior
microhardness (~458HV) at 900°C, comparative to the other alloys of the native
category. Based upon the current investigation, Ti-25Ni-15Si-10HA alloy could find
applications as bioimplants in dental and orthopedic areas
