Reactive Ni–Al-Based Materials: Strength and Combustion Behavior

Reactive Infiltration Processing and Secondary Compressive Creep of NiAl and NiAl-W Composites

Reactive infiltration processing was used to fabricate bulk NiAl and fiber-reinforced NiAl composites. Homogenous, pore-free materials were obtained by chemical reaction between nickel and aluminum after complete infiltration with liquid aluminum of preforms of nickel wires (containing tungsten wires for the composites) with low surface-to-volume ratio, high permeability, and regular infiltrati...

Reactive Infiltration Processing and Compression Creep of NiAl and NiAl Composites

....................................... 2 TA BLE O F C O N TEN TS ................................................................................................. ..................................... 3 LIST OF FIGURES .................................. ............................... ....... ......................... 5 LIST O F T A B LE S .........................................................

The wetting behavior of NiAl and NiPtAl on polycrystalline alumina

In order to understand the beneficial effect of Pt on the adherence of thermally grown alumina scales, sessile drop experiments were performed to study the wetting of poly-crystalline alumina by nickel-aluminum alloys with or without platinum addition where the amount of Pt ranged from 2.4 to 10 at.%. Subsequent interfacial structure was evaluated using atomic force microscopy. Platinum additio...

Combustion joining of refractory materials

This paper overviews heterogeneous exothermic reactive systems as they apply to the joining of materials. Techniques that are investigated fall under two general schemes: so-called Volume Combustion Synthesis (VCS) and Self-Propagating High-Temperature Synthesis (SHS). Within the VCS scheme, applications that are considered include Reactive Joining (RJ), Reactive Resistance Welding (RRW), and S...

Combustion and fire retardance in polymeric materials