Sintering metal explained Melting iron or nickel? Easy. But tungsten and molybdenum? Their melting points are so high that casting isn’t an option. Instead, they’re shaped using powder metallurgy and sintering, where metal powder is compressed and heated just below melting point. This process bonds the particles without turning them to liquid, preserving the heat resistance and strength of these refractory metals. #science #engineering #facts #metal #sintering #metal #metallurgy | vt.physics

A process developed at the Karlsruher Institut für Technologie (KIT) produces nanometer-fine quartz glass structures that can be printed directly onto semiconductor chips. A hybrid organic-inorganic polymer resin serves as the starting material for the 3D printing of silicon dioxide. Since the process does not require sintering, the temperatures required are significantly lower. At the same time, higher resolution enables nanophotonics with visible light. | Wevolver.com