Determining of 〖NH〗_4 〖HCO〗_3content of porous (Ti-Zr) Scaffolds

Abstract

Bone injuries often require the inception of implant biomaterial to heal and recover the damaged bone, Porous Titanium alloys are widely used as implants in orthopedic applications, the mechanical properties of porous Titanium alloys should match those of natural bone in order to obtain a functionally satisfactory implant, and Titanium scaffolds must have a higher porosity from (40%). In this research, porous scaffolds were prepared from (Ti-Zr-) by using Powder Metallurgy method and with different weight ratios from ammonium hydrogen carbonate to obtain the required porosity. The results showed that adding ammonium hydrogen carbonate in weight ratios (50%-20%-10%) gives unacceptable samples that are either crumbled or have large cracks, and the results also indicated that coherent samples can be obtained (70% Ti-30% Zr) and have the required porosity for scaffolds by a certain value of compacting pressure (1.5 Ton= 190.985 Mpa), as this value was determined experimentally. The experiments were conducted at the Higher Institute of Applied Sciences and Technology.