Electrically insulating filler for sheathed heaters

Details Electrically insulating filler for sheathed heaters Electrically insulating filler for sheathed heaters

1986-01-02

1987-07-21

Dixon, Jr., William R.

Compositions: ceramic

Ceramic compositions

Refractory

106288B, 106306, C04B 3502

Patent

active

046818626

ABSTRACT:
This disclosure relates to an electrically insulating filler for sheathed heaters. The filler includes globular and nonglobular particles containing at least 95 wt. % MgO, and the percentage of globular particles being at least 5 wt. %. The globular magnesia includes at least one single magnesia or a combination of magnesias selected from groups of sintered magnesias and electro-fused magnesias.

REFERENCES:
patent: 2285952 (1942-06-01), Vogel et al.
patent: 3457092 (1969-07-01), Tervo
patent: 3583919 (1971-06-01), Balint et al.
patent: 3622755 (1971-11-01), Vedder
patent: 3991005 (1976-11-01), Wallace
patent: 4268320 (1981-05-01), Klingaman et al.
patent: 4280932 (1981-07-01), Broom et al.
patent: 4435693 (1984-03-01), Johnson

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