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Title: Dielectric ceramic compositions based on magnesium, calcium and rare earth metal titanates

Abstract

A dielectric ceramic composition for microwave applications consists essentially of a sintered mixture represented by the general formula: (1-x)MgTiO3-x(CA1-ymey)TiO3 wherein me is at least one rare earth element selected from the group of Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, and wherein X and Y are molar fractions of respective components and take values within the following respective ranges: 0.03 < or = X < or = 0.15, 0.001 < or = Y < or = 0.06. The composition is a fine-grained, dence ceramic and enables to produce microwave devices with high permittivity, high quality factor and small temperature coefficient of resonance frequency.

Inventors:
;
Publication Date:
OSTI Identifier:
6830870
Alternate Identifier(s):
OSTI ID: 6830870
Patent Number(s):
US 4242213
Assignee:
Murata Manufacturing Co Ltd (Japan) IFI; EDB-81-051280
Resource Type:
Patent
Resource Relation:
Patent Priority Date: Priority date 19 Apr 1978, Japan
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CERAMICS; DIELECTRIC MATERIALS; MICROWAVE EQUIPMENT; CALCIUM COMPOUNDS; MAGNESIUM COMPOUNDS; PERMITTIVITY; RARE EARTH COMPOUNDS; TITANATES; ALKALINE EARTH METAL COMPOUNDS; ELECTRONIC EQUIPMENT; EQUIPMENT; MATERIALS; OXYGEN COMPOUNDS; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS 360204* -- Ceramics, Cermets, & Refractories-- Physical Properties; 360201 -- Ceramics, Cermets, & Refractories-- Preparation & Fabrication

Citation Formats

Katsube, M., and Tamura, H.. Dielectric ceramic compositions based on magnesium, calcium and rare earth metal titanates. United States: N. p., 1980. Web.
Katsube, M., & Tamura, H.. Dielectric ceramic compositions based on magnesium, calcium and rare earth metal titanates. United States.
Katsube, M., and Tamura, H.. Tue . "Dielectric ceramic compositions based on magnesium, calcium and rare earth metal titanates". United States. doi:.
@article{osti_6830870,
title = {Dielectric ceramic compositions based on magnesium, calcium and rare earth metal titanates},
author = {Katsube, M. and Tamura, H.},
abstractNote = {A dielectric ceramic composition for microwave applications consists essentially of a sintered mixture represented by the general formula: (1-x)MgTiO3-x(CA1-ymey)TiO3 wherein me is at least one rare earth element selected from the group of Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, and wherein X and Y are molar fractions of respective components and take values within the following respective ranges: 0.03 < or = X < or = 0.15, 0.001 < or = Y < or = 0.06. The composition is a fine-grained, dence ceramic and enables to produce microwave devices with high permittivity, high quality factor and small temperature coefficient of resonance frequency.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Dec 30 00:00:00 EST 1980},
month = {Tue Dec 30 00:00:00 EST 1980}
}