公开(公告)号：ZA876944B

公开(公告)日：1988-03-21

申请号：ZA876944

申请日：1987-09-16

Applicant: LANXIDE TECHNOLOGY COMPANY, LP.

Inventor： ROBERT CAMPELL KANTNER ,  MICHAEL KEVORK AGHAJANIAN ,  STANISLAV ANTOLIN ,  ALAN SCOTT NAGELBERG ,  RATNESH KUMAR DWIVEDI

IPC: C04B35/622 ,  C04B35/00 ,  C04B35/10 ,  C04B35/65 ,  C22C29/12 ,  C04B ,  G01N ,  B28B ,  C01F

Abstract: A ceramic body is formed of alumina obtd. by oxidn. of molten aluminium with an oxygen-contg. gas under such conditions that the product remains in contact with the metal to form a body through which metal is continuously drawn to the oxidant interface to cause growth of the body. The body may also include non-oxidised metal components. - The body is caused to have a refined microstructure by including a process modifier either in the molten metal or in contact with it. - In a modification a body of filler is located adjacent to the metal bath so that it becomes embedded in the oxidn. product. Pref. the modifier is Cu, Ni, Fe, Zr, Cr, Ti, W, Nb or Co. - The modifier is pref. used in an amt. of 0.1-10 wt.% based on the aluminium metal. It may be alloyed with the latter, applied as a powder to the growth surface of the initial aluminium body, or mixed with the filler, which may be silicon carbide. (Dwg.0/3)

公开(公告)号：ZA8706944B

公开(公告)日：1988-03-21

申请号：ZA8706944

申请日：1987-09-16

Applicant: LANXIDE TECHNOLOGY COMPANY, LP.

Inventor： ROBERT CAMPELL KANTNER ,  MICHAEL KEVORK AGHAJANIAN ,  STANISLAV ANTOLIN ,  ALAN SCOTT NAGELBERG ,  RATNESH KUMAR DWIVEDI

IPC: C04B35/622 ,  C04B35/00 ,  C04B35/10 ,  C04B35/65 ,  C22C29/12 ,  C04B ,  B28B ,  C01F ,  G01N

CPC classification number: C04B35/652 ,  C22C29/12