公开(公告)号：ZA8859B

公开(公告)日：1988-06-27

申请号：ZA8859

申请日：1988-01-06

Applicant: LANXIDE TECHNOLOGY COMPANY, LP.

Inventor： EVANS ALLEN LAROCHE, JR.

IPC: C04B35/622 ,  B22F3/00 ,  C04B35/10 ,  C04B35/56 ,  C04B35/65 ,  C22C29/12 ,  C04B ,  B22C ,  C01B

Abstract: A method of producing shaped, self-supporting ceramic bodies includes preparing a mold by applying a permeable, conformable material (5) to a shape-defining surface (3) of an expendable pattern (2). The permeable, conformable material, when set or stable, provides a mold with a shaped surface which is defined by, and is therefore substantially congruent to, the shape-defining surface. Upon heating, the material of the expendable pattern (2) combusts or volatilizes and thus establishes the shaped cavity mold. A molten parent metal (1) is then vaporized with a vapor-phase oxidant in such a manner as to form a ceramic body which grows into the mold cavity, and is shaped by it. The ceramic body is recovered from the mold having a shaped surface replicating the shape-defining surface (3) of the expendable pattern (2).

公开(公告)号：ZA8800058B

公开(公告)日：1988-06-27

申请号：ZA8800058

申请日：1988-01-06

Applicant: LANXIDE TECHNOLOGY COMPANY, LP.

Inventor： EVANS ALLEN LAROCHE, JR.

IPC: C01B20060101 ,  C04B20060101 ,  C01B ,  C04B

公开(公告)号：ZA876898B

公开(公告)日：1988-03-17

申请号：ZA876898

申请日：1987-09-15

Applicant: LANXIDE TECHNOLOGY COMPANY LP.

Inventor： ANDREW WILLIARD URQUHART ,  EVANS ALLEN LAROCHE, JR.

IPC: C04B35/622 ,  B28B7/34 ,  C04B35/00 ,  C04B35/10 ,  C04B35/56 ,  C04B35/65 ,  C22C29/00 ,  C22C29/02 ,  C22C29/12 ,  C22C29/14 ,  C22C29/16 ,  B28B ,  C04B

Abstract: There is disclosed a method of producing a self-supporting ceramic composite body having therein at least one cavity which inversely replicates the geometry of an expendable pattern (6). The method includes the steps of surrounding the expendable pattern (6) with a filler material (4) to thereby form a filled cavity within the filler material (4). The expendable pattern (6) is chemically or physically removed from the filler material (4) and a quantity of a parent metal is put into the cavity. The parent metal is heated to a temperature above its melting point and an oxidation reaction process begins whereby the oxidation reaction product infiltrates and embeds the surrounding filler material (4). Excess filler material and/or excess parent metal are removed, thus resulting in a self-supporting ceramic composite body having a cavity in the shape of the expendable pattern (6).

公开(公告)号：ZA8858B

公开(公告)日：1988-06-27

申请号：ZA8858

申请日：1988-01-06

Applicant: LANXIDE TECHNOLOGY COMPANY, LP.

Inventor： EVANS ALLEN LAROCHE, JR.

IPC: C01B20060101 ,  C04B20060101 ,  C01B ,  C04B

公开(公告)号：ZA8800059B

公开(公告)日：1988-06-27

申请号：ZA8800059

申请日：1988-01-06

Applicant: LANXIDE TECHNOLOGY COMPANY, LP.

Inventor： EVANS ALLEN LAROCHE, JR.

IPC: C04B35/622 ,  B22F3/00 ,  C04B35/10 ,  C04B35/56 ,  C04B35/65 ,  C22C29/12 ,  C04B ,  B22C ,  C01B

CPC classification number: B22F3/00 ,  C04B35/652

公开(公告)号：ZA8706898B

公开(公告)日：1988-03-17

申请号：ZA8706898

申请日：1987-09-15

Applicant: LANXIDE TECHNOLOGY COMPANY LP.

Inventor： ANDREW WILLIARD URQUHART ,  EVANS ALLEN LAROCHE, JR.

IPC: C04B35/622 ,  B28B7/34 ,  C04B35/00 ,  C04B35/10 ,  C04B35/56 ,  C04B35/65 ,  C22C29/00 ,  C22C29/02 ,  C22C29/12 ,  C22C29/14 ,  C22C29/16 ,  B28B ,  C04B

CPC classification number: B28B7/348 ,  B28B7/342 ,  C04B35/652