Clarification of how oxidation and counterface materials influence the high temperature tribological properties of TiAl alloy is the main object of this research. As evident from the comparison tests in air and argon, surface oxidation is detrimental to the tribological properties of the alloy at low temperature, but favorable above 600 °C.
Counterface (Si3N4, SiC and Al2O3) is an important factor that largely affects the tribological properties of TiAl alloys, and this effect is strongly dependent on the system environment. In general, TiAl alloy shows superior tribological properties when Al2O3 is mating surface, excluding at 800 °C in argon.
This paper was originally published in Materials & Design 84 (2015), Pages 245–253.
Hierarchical carbon structures also show promise for CO2 capture
Electroconductive hydrogel for tissue repair, drug delivery and medical implants
Novel smart coatings for orthopedic implants have bacteria-killing nanopillars on one side and strain-mapping flexible electronics on the other.
autonomous, self-powered mechanical metamaterials perform basic computation