Compositions – Electrically conductive or emissive compositions – Metal compound containing
Patent
1992-07-28
1994-06-21
Bell, Mark L.
Compositions
Electrically conductive or emissive compositions
Metal compound containing
H01B 106
Patent
active
053226429
ABSTRACT:
A method of manufacturing metal alloys to obtain a homogeneous powder made up of oxides of the metals and applications thereof to the manufacture of semiconductors and superconductors comprises, after placing the various metals selected in a crucible, melting the metals in a neutral or reducing atmosphere while stirring the liquid to homogenize it, recovering the liquid alloy, spraying the alloy obtained to form homogeneous powder particles of determined particle size, and oxidizing the particles. It applies to the manufacture of zinc oxide-based varistor type semiconductor ceramics and to the manufacture of superconductor products or positive or negative temperature coefficient thermistors.
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Bucher Olivier
Counioux Jean-Jacques
Delalu Henri
Marchand Alain R.
Marichy Gerard
Bell Mark L.
Ferraz
Wright A.
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