Intermetallics - Synthesis, Production, Properties

Abstract

This work summarizes recent results in the field of intermetallics achieved during the research in our department. The research was focused on high temperature materials, shape memory alloys and hydrogen storage materials. In the case of high-temperature intermetallics, the development of TiAl-Ti5Si3 and NiAl-Al2O3 composites and Fe-Al-Si based alloys is described. During this research, powder metallurgy using reactive sintering has been established as an innovative and promising method for easy preparation of these materials. This method is also currently being tested and optimized for NiTi shape memory alloy. Another important property of several intermetallics (as LaNi5 or Mg2Ni) is the ability to store hydrogen reversibly.

Solutions for Critical Raw Materials under Extreme Conditions: A Review

“…However, the wear resistance does not reach the performances of WC-Co, but it exceeds the properties of current cold work tool steels without the need for heat treatment [ 55 ]. Current research results also indicate that the ternary Fe-Al-Si and Ti-Al-Si alloys exhibit excellent wear resistance [ 56 ]. However, these materials, similarly as many other materials based on intermetallics, are relatively brittle at room temperature.…”