Specialized metallurgical processes – compositions for use therei – Compositions – Consolidated metal powder compositions
Patent
1995-06-07
1998-08-25
Jenkins, Daniel J.
Specialized metallurgical processes, compositions for use therei
Compositions
Consolidated metal powder compositions
75228, 428548, 419 6, 419 36, 419 37, 264 56, 264 58, 264 63, 264 67, B22F 702
Patent
active
057984697
ABSTRACT:
A sintered structure is formed from a powdered material by the steps of providing a first, green powdered material which can be a ceramic or metallic ceramic material. A second, preformed mold blank material to the green powdered material, wherein the preformed mold blank will not fuse with the first, green powdered material. The mold blank material is different green material having a higher sintering temperature than the first green powdered material. Then the structure is fired at the sintering temperature of the first, green powdered material; and the preformed mold blank material from the fired powdered material is removed. Grooves can be formed by pressing non-sinterable lines into a green sheet prior to firing. A wave guide unit can be formed in the ceramic. A ceramic structure can be formed with fracture markings in the green powdered material. A heat sink can be composed of sintered metallic ceramic material in the form of a spiral, while the sintered metallic ceramic material of the heat sink can ban composed of laminated layers. The heat sink can include hollow spaces formed from laminated layers. The heat sink can be in the form of a bellows formed from laminated layers of metallic ceramic material.
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Ahsan Aziz M.
International Business Machines - Corporation
Jenkins Daniel J.
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