MAX phase Ti2AlC foams using a leachable space-holder material

Structure of a new bulk Ti5Al2C3 MAX phase produced by the topotactic transformation of Ti2AlC

Upon annealing cold-pressed Ti2AlC, -325 mesh powders, at 1500 °C for 8 h in argon, the resulting partially sintered sample contained 43(±2) wt.% of the layered ternary carbide Ti5Al2C3. Herein, the X-ray powder diffraction pattern of Ti5Al2C3 is reported for the first time. Its structure and stoichiometry are confirmed through high-resolution transmission electron microscopy. This phase has a ...

Fatigue behavior of TiNi foams processed by the magnesium space holder technique.

While the wide range of applications of TiNi alloys makes them highly appealing due to their shape memory and superelasticity properties, the production of TiNi in the porous form further enlarges their application fields. Porous TiNi alloys have been studied extensively for biomedical applications since their elastic modulus is similar to that of bone. Accordingly, TiNi foams have been widely ...

Creating Aligned, Elongated Pores in Titanium Foams by Swaging of Preforms with Ductile Space-Holder

[*] Dr. Y. Chino Materials Research Institute for Sustainable Development, National Institute of Advanced Industrial Science and Technology Nagoya, 463-8560, Japan E-mail: [email protected] Prof. D. C. Dunand Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois, 60208, USA [**] This research was supported by the US National Science Foundation through gra...

Stiffness variation of porous titanium developed using space holder method

The excellent properties of Ti have resulted in its generalised use for bone implants. However, Ti is very stiff in comparison with human cortical bone, and this creates problems of bone weakening and loosening of the implant. This article discusses the mechanical properties (flexural and compressive strength, and stiffness) of porous Ti–6Al–4V specimens developed using the space holder method....

Phase Transitions in Foams