Effect of Milling and Sintering Temperature of TaC–TaB2 Composite on Lattice Parameter and C/Ta Ratio

Resumo

The lattice parameter of TaC–TaB₂ balk prepared by mechano-chemical and spark plasma sintering (SPS) was investigated by the Nelson–Riley method. In this study, TaC–B₄C powder was milled for 3, 6, 9, 12 hours and sintered by spark plasma sintering. The lattice parameter and C/Ta ratio of TaC–TaB₂ was calculated by the Nelson–Riley method and the Storms relation. In this research, TaC–B₄C powder was reacted and produced TaC–TaB₂ composite. Phase formation and powder morphology during milling and sintering were examined using different analysis techniques including XRD and FE-SEM. The lattice parameter of the powders was increased by milling time and sintering temperature.