Dielectric ceramics

Details Dielectric ceramics Dielectric ceramics

1981-05-21

1982-07-06

McCarthy, Helen M.

Compositions: ceramic

Ceramic compositions

Titanate, zirconate, stannate, niobate, or tantalate or...

501137, 501139, 501152, C04B 3546, C04B 3550, H01B 312

Patent

active

043384030

ABSTRACT:
A dielectric ceramic consisting essentially of at least 88 weight % of a main component and up to 12 weight % of stannic oxide (SnO.sub.2), said main component consisting essentially of 34.5 to 82 weight % of titanium oxide (TiO.sub.2), 9 to 63 weight % of Praseodymium oxide (Pr.sub.6 O.sub.11) and 2.5 to 23.5 weight % of barium oxide (BaO), at most 95 weight % of said praseodymium oxide being replaceable by neodymium oxide (Nd.sub.2 O.sub.3).
It exhibits large dielectric constant and low microwave loss with large temperature-stability for resonant frequency and it is suitable for use as dielectric resonators, electrical filters, substrates, etc.

REFERENCES:
patent: 3268783 (1966-08-01), Saburi
patent: 3938064 (1976-02-01), O'Bryan et al.

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