The latest models of tabletop SEMs (TT-SEMs) feature a range of electron sources. Although a tungsten filament is used in a majority of TT-SEMs, certain models come with a Cerium Hexaboride (CeB 6) ...

Tungsten has the highest melting point of all metals, 3,422 degrees Celsius. This makes the material ideal for use at high temperatures in e.g. space rocket nozzles, heating elements of ...

Tungsten atoms are seen to come together in a way that is similar to an outer space ion. The finding suggests many more types of electron sharing between atoms could exist in nature. A team of ...

Acetylene hydratase (AH) is a unique enzyme that catalyses the hydration of acetylene to acetaldehyde using a tungsten centre as the key catalytic site. The enzyme’s active site is distinguished by ...