Method of producing a spinel type ceramic sintered body

Details Method of producing a spinel type ceramic sintered body Method of producing a spinel type ceramic sintered body

1986-07-01

1988-06-14

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Refractory

501120, 501122, 501132, 501133, 501155, C04B 3514, C04B 3542, C04B 3544

Patent

active

047512083

ABSTRACT:
A spinel type ceramic sintered body is provided starting from a chromiferous slag which is a waste discharged from sodium chromate production, said sintered body being reproducable by selecting the mole ratios of R.sub.2 O/MgO to 0.9-2.0 and SiO.sub.2 /MgO to 1-6 wherein R represents collectively Al, Fe and Cr, the sintered body having high thermal conductivity falling within the range of 1.3-2.5 kcal/mh.degree. C., specific electric resistance falling within the range of 10.sup.2 -10.sup.7 cm high mechanical strengths and unique coloration and which can be used as a functional tile.

REFERENCES:
patent: 1814088 (1931-07-01), Housman
patent: 2063154 (1936-12-01), Easter et al.
patent: 2311970 (1943-02-01), Seil
patent: 2911313 (1959-11-01), Sandmeyer
patent: 3132954 (1964-05-01), Alper et al.
patent: 3188219 (1965-06-01), Miller et al.
patent: 3278320 (1966-10-01), Neely et al.
patent: 3342616 (1967-09-01), Alper et al.
patent: 3635740 (1972-01-01), Davies et al.

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