Electron (material)
The technical material electron is a magnesium alloy made of at least 90% magnesium and almost 10% aluminum , and zinc , tin and other alloy components can also be contained in small, different proportions .
properties
Elektron is available as cast and wrought alloys , which are characterized by good corrosion resistance , including against salt water. It was developed in 1908 by the Griesheim-Elektron chemical factory .
Electron melts at approx. 650 ° C and then burns in the presence of atmospheric oxygen in a strongly exothermic and glistening light (approx. 2200 ° C). The density is (depending on the composition) 1.8 g / cm³ and thus significantly below that of aluminum alloys.
use
- Elektron has been used for the shell of electron thermite stick incendiary bombs since 1918 .
- Electron is used for components in optics and precision mechanics and in aircraft construction.
- The engine covers of the Honda XL250 K0 are made of electron.
- The swing arm, brake drum and anchor plate of the front wheel, brake shield of the rear wheel, the rear wheel (rim, spokes and hub in one piece) and the rear part of the Münch “Mammut” 1200 TTS / E motorcycle, which was produced from 1973 to 1979, were made of electron.
- The prototype Bugatti Type 57C Aérolithe from 1934 had a body made of electron half-shells that are riveted to a flange running centrally across the entire vehicle. This design element, but not the electron material, can also be found on the better-known Bugatti Type 57SC Atlantic .
- The tubular space frame and the body of the Mercedes-Benz 300 SLR were made of electron, which in 1955 at Le Mans contributed to the worst catastrophe in the history of motorsport .
- The body of the last Borgward 1500 RS is made of electron.
Materials of the same name
- In ancient times , alloys made of gold and silver were considered electrons . This was mainly used to mint coins .
- The ancient Greek name for amber , which consists of hydrocarbons , is electron . The terms electricity , electronics and the elementary particle electron are derived from this, as the electrostatic charge was first observed on amber.
literature
- Serge Bellu: La Carrosserie Française: you style au design ; ETAI publisher (Editions Techniques pour l'Automobile et l'Industrie), 2007. ISBN 978-27268-8716-5 ; Hardcover (French)
Web links
Individual evidence
- ^ Bellu: La Carrosserie Française: du Style au Design (2007); Pp. 158-159