Formation mechanisms of Ti ₃(Si,Al)C ₂/Al ₂O ₃ composites from Ti ₃AlC ₂ and SiO via low-temperature sintering

Reactive Sintering of TiAl - Ti 5 Si 3 Lnsitu Composites

TiAl with between 0 and 20 volume percent (v%)Ti5Si3 was produced by reactive sintering of cofd pressed compacts of elemental Ti, Al and Si powder mixtures at 7OO0C for 15 minutes in vacuum. The results show that adding Si to Ti and A1 reduces the swelling associated with reactive sintering of TiAI, as composites containing more than 5 vYoTigSi3 densified during reactive sintering. However, com...

Enhancement in Ti–6Al–4V sintering via nanostructured powder and spark plasma sintering

Photocatalytic activity of low temperature oxidized Ti-6Al-4V.

Numerous advanced surface modification techniques exist to improve bone integration and antibacterial properties of titanium based implants and prostheses. A simple and straightforward method of obtaining uniform and controlled TiO(2) coatings of devices with complex shapes is H(2)O(2)-oxidation and hot water aging. Based on the photoactivated bactericidal properties of TiO(2), this study was a...

Low Temperature Transient Liquid Phase Bonding of Ti-6AI-4V

Transient liquid phase bonds can be made at low temperatures in vacuum using zinc inderlayers. The resulting microstructure is interface free with no detection of zinc by X-ray flourenscence, after 4 hours at 800°C The mechanical properties of the joint are at least one third of the parent metal. The process relies on evaporation, diffusion and intermetallic reaction of the zinc with the titan...

Sintering Properties of Mechanically Alloyed Ti-5Al-2.5Fe

In this study, Ti-5Al-2.5Fe alloy was prepared by powder metallurgy. The elemental titanium, aluminum, and iron powders were mechanically alloyed for 10 h in a vacuum atmosphere. A stainless steel jar and stainless steel balls were used for mechanical alloying. The alloyed powders were then sintered by vacuum hot pressing at 950 °C for a soaking time of 30 minutes. Pure titanium was also sinter...