Electric resistance element
AssigneeKanthal AB
InventorMats Sundberg
Life of this patent
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Abstract
An electrical resistance element of the molybdenum silicide type including at least one hot zone and at least two lead-in conductors. The hot zone includes an homogenous silicide material that contains molybdenum and tungsten having the chemical formula Mo.sub.x W.sub.1-x Si.sub.2, where x is between 0.5 and 0.75. From 10% to 40% of the total of the silicide material is replaced with at least one of the compounds molybdenum boride or tungsten boride; those compounds are present in the silicide material in particle form.
Claims10
An electric resistance element of the molybdenum silicide type comprising at least one hot zone and at least two lead-in conductors, wherein the hot zone includes an homogenous silicide material that contains molybdenum and tungsten having the chemical formula Mo.sub.X W.sub.1-X Si.sub.2, where x is between 0.5 and 0.75, wherein from 10% to 40% of the total weight of the silicide material is replaced with at least one of the compounds molybdenum boride or tungsten boride that are present in the silicide material in particle form.
Dependencies are inferred from the claim text.