Glow-discharge plasma nitriding is carried out in nitrogen-hydrogen atmospheres at pressures in the range of 100 to 1000. At pressures below 10 Pa, the glow-discharge technique is not used, but plasma can still be generated by radio-frequency (RF) excitation, microwave energy, or electrons produced by a heated filament.
Thousands of people worked for almost two decades on construction and testing of the optical and science segment of the of NASA’sJames Webb Space Telescope.
The University of Nevada, Reno, announces that its engineers have designed bridge columns made of a flexible concrete reinforced with Nitinol rods to resist collapse during earthquakes.
Exergyn, Dublin, Ireland, has created a new engine called the Exergyn Drive, which turns waste hot water into electricity by means of Nitinol, which undergoes a phase transition when heated and reverts to its original shape when cooled.
Tohoku University, Japan, announces that a newly discovered magnesium-scandium alloy with a bcc structure shows a martensitic transformation and exhibits the superelastic effect at −150°C (−238°F).
