TARGET FOR BARIUM - SCANDATE DISPENSER CATHODE

World Intellectual Property Organization Patent

APP PUB NO WO-2013018027-A1
SERIAL NO

PCTIB2012053901

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Abstract

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The invention relates to the field of production of barium-scandate dispenser cathodes or other barium-scandate materials. A target (66) containing a mixture of BaO, CaO, Al2O3 and SC2O3 tends to be more stable, the higher the scandia (scandium oxide) content is. However, an increased scandia content results in a reduced emission capability. A destabilizing effect of BaO and CaO reactions is counteracted by the more inert SC2O3 and also AI2O3 components, as not only an increased scandia content stabilizes the material but also an increased alumina (aluminum oxide) content improves the stability.

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Patent Owner(s)

Patent OwnerAddress
KONINKL PHILIPS ELECTRONICS NVNLHOLLAND IAN DEHO FINN

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Inventor(s)

Inventor Name Address
KEUR WILHELMUS CORNELIS WEERT
GAERTNER GEORG FRIEDRICH C/O HIGH TECH CAMPUS BUILDING 44 NL-5656 AE EINDHOVEN

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