... for top supporting for joule exhaust, and using cathode iridium-core electrophoresis yttria for strong anti-oxidation and long life ... for top supporting for joule exhaust, and using cathode iridium-core electrophoresis yttria for strong anti-oxidation and long life ... for top supporting for joule exhaust, and using cathode iridium-core electrophoresis yttria for strong anti-oxidation and long life ...