Ceramics binder mixture and binding method

Details Ceramics binder mixture and binding method Ceramics binder mixture and binding method

1994-09-20

1996-04-09

Marcantoni, Paul

Compositions: ceramic

Ceramic compositions

Devitrified glass-ceramics

501118, 501119, 2523155, C04B 3518, C04B 35195

Patent

active

055061796

ABSTRACT:
A ceramics binder mixture having from 4.3 to 7 parts by weight, as calculated as silica, of a silica-sol mixed to 100 parts by weight of a mixture comprising (1) from 25 to 60 parts by weight of cordierite aggregates prepared by melting and vitrifying a mixture of an approximate cordierite composition (2MgO.2Al.sub.2 O.sub.3.5%SiO.sub.2), followed by crystallization to cordierite, and having a particle size of from 0.1 to 1 mm, (2) from 6 to 17 parts by weight of a fine powder of silica having particle sizes of from 0.1 to 10 .mu.m, and (3) the rest being a powder composed mostly of cordierite particles and having particle sizes smaller than 0.1 mm, whereby the Na.sub.2 O content in the binder mixture excluding moisture is not higher than 0.3 wt %.

REFERENCES:
patent: 4257810 (1981-03-01), Narumiya
patent: 4367292 (1983-01-01), Sano et al.
patent: 4584003 (1986-04-01), Oda et al.
patent: 5045514 (1991-09-01), Ismail et al.
patent: 5073178 (1991-12-01), Mimori et al.
"Porous Ceramic For Adsorption of Soils" Yokoyama et al., JP01-61368 (Jun. 15, 1989).

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