Morgan Advanced Materials, England, has partnered with global aerospace giant Airbus Safran Launchers (ASL) to develop and manufacture ceramic thruster chambers to aid satellite propulsion by ion beam engines.
Animated short film by ESA shows robots using 3D printing to build a Lunar base. In 2013 ESA, working with industrial partners, proved that 3D printing using lunar material was feasible in principle. Since then, work continues to investigate the technique. The shielding against radiation provided by a 3D-printed block of simulated lunar regolith was measured, providing important inputs for next-stage designs.
The graph shows the solubility of nitrogen in expanded austenite (γN) as a function of the imposed nitrogen activity (aN) in a gas mixture of NH3 and H2 for the stainless steels and temperatures indicated in the legend.
It was great to see so many of you at the Thermal Spray Characterization: Materials, Coatings and Processes event held in Charleston last month. I’ve received a lot of very positive feedback from the attendees of this event. A big thank you again to Rick Bajan and the organizing committee which made this event possible.
The angle of impingement of the spray stream is a source of porosity, because of shadowing. The diagram illustrates the type of shadowing generally associated with coatings sprayed at angles below 45° from the optimal normal angle of incidence.
