Influences of sintering parameters on shape-retention ability of porous Ni3Al intermetallic fabricated by powder metallurgy

Effect of the heating rate on the thermal explosion behavior and oxidation resistance of 3D-structure porous NiAl intermetallic

“…To solve this problem, Cai et al [29] proved that the real combustion temperature of porous NiAl can be decreased effectively by extending the holding time, which can effectively suppress the deformation and melting of the product. Jiang et al [30] studied the effect of heating rate and isothermal treatment on the sintering of Ni 3 Al sample, and concluded that when the sample was treated at a lower heating rate (1-2 • C min − 1 ) to a proper temperature (470-490 • C), the product can maintain its original morphology. Previous studies have made important contributions to the successful preparation of porous NiAl materials, but the effects of sintering parameters on thermodynamics and the oxidation kinetics of sintered products with different heating rates are still unclear.…”

Microstructure and oxidation resistance of porous NbAl3 intermetallic prepared by thermal explosion reaction

“…Porous intermetallic materials have attracted extensive attention because they combine the characteristic properties of intermetallic compounds and porous materials, such as relatively high-temperature strength, good corrosion resistance and high interface area [1,2]. In this context, niobium aluminides, particularly NbAl 3 , possessing a desirable combination of low density (4.54 g cm −3 ) and relatively high melting temperature (1680°C), are considered as prospective materials for applications to lightweight structural components, filters and catalyst carriers in severe environments [3,4].…”