B - Operations – Transporting – 05 – D
Patent
B - Operations, Transporting
05
D
73/63, 73/64
B05D 3/06 (2006.01) G01K 1/08 (2006.01)
Patent
CA 1266787
Abstract of the Disclosure A protective sheath for a temperature sensing device for use in determining the temperature of molten metals. The temperature sensing device, such as a thermocouple, is encased in a molybdenum tube which is coated with successive porous layers of molybdenum, a plurality of layers of A1203-Cr203-Mo in a decreasing concentration of Mo in proceeding from the inner to the outer layers, and a layer of substantially pure Al203-Cr203. The Al203-Cr203 layer may be covered with an outer coating of a material, such as boron nitride, to protect the Al203-Cr203 layer from attack by slag. Alternating layers of Al203-Cr203 and boron nitride may be applied as outermost sacrificial layers.
505764
Bush James R.
Drzewiecki Tadeusz M.
Ellis Richard T.
Greenspan David C.
Negas Taki
Bush James R.
Drzewiecki Tadeusz M.
Ellis Richard T.
Gowling Lafleur Henderson Llp
Greenspan David C.
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