Effect of Diluent Amount on Properties of Porous NiAl

Porous NiAl parts were formed by using Ni and Al elemental powders, preformed as diluent NaCl particles space holder (SH). The aim of utilizing (30%-40%) a was to preserve the shape products. amounts SH in 25-50-75 vol.% their sizes 300-500 µm range. samples prepared volume combustion synthesis (VCS). adiabatic temperatures Ni+Al mixtures having 30 40% calculated 1638.9 1460.8°C, respectively. Formation phase verified XRD analyses. In green pellets, total porosity amount higher than added amount. Also it slightly product pellets before VCS. Compressive strength microhardness values which contained 30% diluent. Average compressive products that obtained 25% additions 112.0±29.5 66.0±20.5 MPa,