Heat exchange – Regenerator – Heat collector
Patent
1974-03-27
1976-03-16
Lesmes, George F.
Heat exchange
Regenerator
Heat collector
165166, 23288F, 264 56, 264 59, 264 63, 428178, 428182, 428184, F28D 1700, B32B 328
Patent
active
039439941
ABSTRACT:
A ceramic cellular structure having a cell density of up to 1600 cells per square inch and wall thicknesses down to 2 mils is produced by a process which comprises: 1) forming a slurry consisting essentially of finely divided sinterable solid particles of ceramic raw materials and a controlled amount of a plastic supporting matrix containing thermoplastic resin, a thermosetting resin, a plasticizer, an organic solvent and a small amount of a deflocculant; 2) ball milling the slurry; 3) casting the slurry in the form of a film; 4) removing the solvent to produce a selfsupporting green ceramic tape; 6) molding a portion of the tape to form a corrugated first member; 7) providing another portion of the tape to form a substantially flat second member; 8) forming a first bilayer by bonding the second member to the nodes of the first member; 9) mutually bonding a predetermined number of bilayers substantially identical to the first bilayer to form a cellular green structure of a desired shape; and 10) firing the green structure at a temperature sufficient to form a sinter-welded polycrystalline ceramic structure. The fired structures, after being subjected to various finishing operations, are useful as rotary heat regenerators, stationary heat recuperators and catalyst supports.
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patent: 3320044 (1967-05-01), Cole et al.
patent: 3444925 (1969-05-01), Johnson
patent: 3717487 (1973-02-01), Hurley et al.
patent: 3785781 (1974-01-01), Hervert et al.
patent: 3794707 (1974-02-01), O'Neill et al.
patent: 3819439 (1974-06-01), Taylor
Castle Donald R.
Fox John C.
GTE Sylvania Incorporated
Lesmes George F.
O'Malley Norman J.
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