| 摘要 |
A COMBINATION OF GETTER MATERIALS PARTICULARLY SUITABLE TO MAINTAIN VACUUM IN DEVICES WHICH CANNOT BE HEATED AT TEMPERATURES HIGHER THAN ABOUT 200 °C COMPRISES: A) A MIXTURE MO/PD BETWEEN AN OXIDE OF A TRANSITION METAL MO CHOSEN AMONG COBALT OXIDE, COPPER OXIDE OR THEIR COMBINATIONS AND METALLIC PALLADIUM, WHEREIN THE LATTER IS PRESENT UP TO ABOUT 2 % BY WEIGHT; AND B) A MOISTURE SORBING MATERIAL. IN PARTICULAR APPLICATIONS IT IS POSSIBLE TO ADD TO THIS COMBINATION ALSO A BARIUM-AND LITHIUM-BASED ALLOY, PREFERABLY BALi4. GETTER DEVICES FOR CONTAINING SUCH A COMBINATION ARE ALSO DESCRIBED.(FIG 1)
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