Synthesis of As-sintered 60NiTi Parts with a High Open Porosity Level

What is it about?

Blended Ni and Ti powders provide the possibility of liquid formation in the samples during sintering which leads to an increase in porosity. Different processing parameters such as pressing pressure, sintering temperature, heating rate and sintering holding time were investigated in a systematic way to obtain 60NiTi parts with approximately 30 Vol.% open porosity using conventional press-and-sinter method.

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Why is it important?

Implants that are intended for use in general bone replacements such as spinal or cranial inserts are expected to have a porous structure. In such cases, other than dimensional integrity, final parts should contain interconnected and open pores of 30-80 Vol.%..