Dilatometric sintering study of Ti–50Ni elemental powders

Detailed dilatometric study of the sintering behaviour of equiatomic Ti–Ni elemental powder has been carried out the under controlled atmosphere. Two different activation energies, 200.9 and 46.2 kJ/mol were observed in a lower and higher temperature range, indicating sintering to be controlled by the solid state inter-diffusion and the chemical reactions. Sintered product shows the reversible austenitic and martensitic transformations.