The most common source of coating porosity is trapped, unmelted, or resolidified particles. Depending on the particle temperatures, the arriving droplets may cover the full range of liquid to solid states.
Titanium powders produced by reducing TiO2 with magnesium in a hydrogen atmosphere
The University of Utah, Salt Lake City, announces that it recently received $3 million in funding to develop two process technologies for production of low-cost titanium powders, from the Advanced Research Projects Agency-Energy (ARPA-E) of the U.S. Department of Energy and its industrial partners.
3-D printed aluminum electronics enclosure flies on Lockheed Martin military satellite
Lockheed Martin, Sunnyvale, Calif., announces that an electronics enclosure fabricated via additive manufacturing will be the first 3D printed part certified for service on a Lockheed Martin military satellite.
Supercritical carbon dioxide carries thin-film coating to protect silicon
The Agency for Science, Technology and Research (A-STAR) Institute of Materials Research and Engineering, Singapore, reports that its researchers have now developed a new way to coat silicon with a layer of protective molecules using supercritical carbon dioxide (scCO2).
Cold spray of metal particles entrained in supersonic gas jet rebuilds aircraft parts
The University of Akron and Airborne Maintenance and Engineering Services, Wilmington, Ohio, announce that they have developed supersonic particle deposition, an aircraft repair method for cold spraying metal particles to rebuild the surfaces of corroded and worn parts.