2. Preparation of amorphous metallic materials
2.1 Cooling rate and amorphization capacity
The first amorphous metal alloys obtained by rapid quenching were developed in a device devised by P. Duwez's team, where a droplet of liquid alloy is sprayed by a jet of gas, before crashing onto a cooled copper ramp (figure 9 ). The first samples, Au-Si, Pd-Si, were obtained in the form of particles of a few mg. Major efforts were then required to find rapid quenching methods, producing appreciable quantities of material, and then industrial-scale quantities.
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Preparation of amorphous metallic materials
Properties of amorphous materials
Bibliography
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Leonardo ENERGY – The global Community for Sustainable Energy Professionals
http://www.leonardo-energy.org/selecting-least-cost-energy-efficient distribution-transformers
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Amorphous magnetic ribbons are manufactured and/or processed today by a large number of companies, some of them spin-offs from academic laboratories, in Eastern Europe, India, Taiwan, Singapore and, above all, China.
The "historical" suppliers and users are :
Hitachi metals and Toshiba (Japan);...
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