Effect of space holder percent on the porosity biocompatibility of nano Ti foam by PM technique

Abstract

Powder metallurgy (PM) approach was utilized for the preparation of Ti porous material mixed mechanically with different percentages of sodium chloride salt from 10 to 40 % with stirring speed 100 rpm and ball to powder ratio 10:1 for milling time 24 h. The Ti -NaCl mixed samples were compacted under 600Mpa, then sintered at 1450 ᴼC for 90 min in a vacuum furnace. The phase composition and microstructure of Ti samples are investigated through X-ray diffraction analysis and scanning electron microscope (SEM). All the prepared samples were characterized by measuring the porosity percentage, Vickers hardness, and compression strength. Microstructure indicated that porosity was found to increase with increasing salt percent while the highest hardness (380) and the compression strength (45MPa) were recorded for the lowest ratio of salt (10%NaCl). Biocompatibility test was estimated for the prepared samples, which exhibited the high viability for cell with good growth of the life cells on the sample's surface, and low adhesion.