BE388316A - - Google Patents

Info

Publication number

BE388316A

BE388316A BE388316DA BE388316A BE 388316 A BE388316 A BE 388316A BE 388316D A BE388316D A BE 388316DA BE 388316 A BE388316 A BE 388316A

Authority

BE

Belgium

Prior art keywords

cathode

heating element

grid

section

desc

Prior art date

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• 238000010438 heat treatment Methods 0.000 claims description 14
• 239000011810 insulating material Substances 0.000 description 5
• PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
• 239000000463 material Substances 0.000 description 3
• 229910052751 metal Inorganic materials 0.000 description 3
• 239000002184 metal Substances 0.000 description 3
• 229910000287 alkaline earth metal oxide Inorganic materials 0.000 description 2
• QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 description 2
• 239000004020 conductor Substances 0.000 description 2
• 239000011521 glass Substances 0.000 description 2
• 229910052759 nickel Inorganic materials 0.000 description 2
• 230000006978 adaptation Effects 0.000 description 1
• 230000009286 beneficial effect Effects 0.000 description 1
• 230000017525 heat dissipation Effects 0.000 description 1
• CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
• 239000000395 magnesium oxide Substances 0.000 description 1
• AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
• 238000001465 metallisation Methods 0.000 description 1
• 238000000034 method Methods 0.000 description 1
• 239000000203 mixture Substances 0.000 description 1
• 239000000126 substance Substances 0.000 description 1