Unique combination of properties resulting from designed Hierarchical Microstructure

Heat resistant superalloys

Aluminum alloys' physical characteristics (high oxidation and corrosion resistance, low density, high conductivity and low cost) make them attractive as high-performance and heat-resistant materials. Current commercial aluminum cast alloys are, however, not usable above 390°F (200°C) because their strengthening precipitates dissolve or coarsen rapidly at higher temperatures.

Modern nickel-based superalloys are mechanically strong at temperatures exceeding 75% their absolute melting point. Similarly, Al-based alloys are expected to be analogously developed with a temperature of 797°F (425°C or 75% of the absolute melting point of aluminum) using the same type of coherent, coarsening resistant precipitates.

NanoAl designs and develops new multicomponent aluminum alloys that are reinforced by nano-scale and micro-scale precipitates that provide them with outstanding mechanical and thermal stability while maintaining the characteristics of pure aluminum; low cost, easy processing, light weight, excellent thermal/electrical conductivity, and high corrosion resistance. Our main advantage is that the family of high-performance aluminum alloys we are developing is far more affordable for large-scale applications, since they do not contain expensive elements.

These new low-cost and light-weight aluminum superalloys, which remain strong at service temperatures as high as 800°F (425°C), will replace various heavier, more expensive, or less temperature-tolerant materials currently employed in different industries including: automobile, aerospace, and electrical-conductor industries.

Following is a series of research papers written by NanoAl co-founders. The papers provide information about processing microstructure and mechanical properties of various dilute Al-Sc-based alloys.