Refractory carbide multilayer
AssigneeSgl Carbon SE
InventorsChristian Militzer, Charles Wijayawardhana, Urban Forsberg, Henrik Pedersen
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Abstract
A refractory carbide multilayer including a first layer, a second layer and a third layer. The first layer has an average thickness of at least 25 nm and contains at least one refractory carbide, the second layer has an average thickness of at least 25 nm and contains at least one refractory carbide, the third layer has an average thickness of at least 25 nm and contains at least one refractory carbide, and the first layer has a larger mean linear intercept section grain size than the second layer.
Claims12
A refractory carbide multilayer comprising a first layer, a second layer, and a third layer, wherein:
- a. the first layer has an average thickness of at least 25 nm and contains at least one refractory carbide,
- b. the second layer has an average thickness of at least 25 nm and contains at least one refractory carbide,
- c. the third layer has an average thickness of at least 25 nm and contains at least one refractory carbide,
- d. the first layer has a larger mean linear intercept section grain size than the second layer;
- and wherein the second layer is sandwiched between the first layer and the third layer, and the third layer has a larger mean linear intercept section grain size than the second layer, and
- wherein the second layer contains more of a non-carbon constituent of the refractory carbide than the first layer.
Dependencies are inferred from the claim text.