Ni Porous Preforms Compacted with AlO Particles and Al Binding Agent.

This work presents an energy-efficient, cheap, and rapid production method of a metal-ceramic preform with open porosity suitable for liquid metal infiltration and filtration applications. It is based on cold isostatic pressing of a mixture of relatively hard Ni and AlO powders with the addition of small amount of Al powders, acting as a binding agent. Open porosity is primarily controlled by AlO particles partially separating Ni particles from mutual contacts.