Fabrication of Biomedical Ti-Zr-Nb by Reducing Metal Oxides with Calcium Hydride.

ABSTRACT: In the present study, a powder of Ti-18Zr-15Nb biomedical alloy with spongy morphology and with more than 95% vol. of β-Ti was obtained by reducing the constituent oxides with calcium hydride. The influence of the synthesis temperature, the exposure time, and the density of the charge (TiO₂ + ZrO₂ + Nb₂O₅ + CaH₂) on the mechanism and kinetics of the calcium hydride synthesis of the Ti-18Zr-15Nb β-alloy was studied. Temperature and exposure time were established as crucial parameters with the help of regression analysis. Moreover, the correlation between the homogeneity of the powder obtained and the lattice microstrain of β-Ti is shown. As a result, temperatures above 1200 °C and an exposure time longer than 12 h are required to obtain

SUBMITTER: Yudin S 

PROVIDER: S-EPMC10219185 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature