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History

In conjunction with separate evacuation systems, they protect the beam generation chamber on the vacuum side as far as possible from the harsh conditions in the melting or evaporation area. A…

History

High-purity metals were needed for this, which required melting processes under extreme vacuum conditions. Arc and induction furnaces reached their limits. During this time, the first powerful…

History

At the end of the Second World War, all the tools needed to start electron beam metallurgy were known. But it was not until 20 years later that industrial solutions for electron beam melting,…

History - The development of electron beam technology at VON ARDENNE

The development of electron beam technology at VON ARDENNE

History

Figure 2: US patent by Marcello von Pirani for melting refractory metals

History

Figure 3: Schematic diagram of a Pierce cathode. The conical electrode shape influences the field geometry in such a way that electron emission can also take place in the space charge range.

History

At the same time, the applications of X-rays and the discovery of cosmic rays and the associated desire for experiments with high-energy radiation also awakened the desire for high-energy energy…

History

Electron beams can also be used to efficiently melt and clean refractory metals such as titanium, tungsten and tantalum. Or metals and ceramics can be deposited as functional layers on a wide…

History

Figure 1: Family tree of electron beam technologies (from Siegfried S. Schultz, 1-2ebeam2002- International Conference on High-Power Electron Beam Technology - October 27- 29, 2002 - Paper 11)

History

Neither computers nor modern communication or the internet would be conceivable without the targeted use of the properties of the electron. But the electron is also very useful as a tool. This is…