Abstract
In-situ directly nitrided and sintered Al-AIN composite material has been developed by utilizing a chemical reaction between aluminum and nitrogen gas at temperatures below 823 K. It shows an extremely low friction coefficient. We have investigated the behavior of magnesium dissolved in aluminum alloy powders by x-ray photoelectron spectroscopy using synchrotron radiation (SR-XPS). We clarified that magnesium played an important role in surface nitridation of aluminum.
