CERAMIC RESONATOR MATERIAL FOR I.F. FILTERS.

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Abstract:

Compositional studies described in the First Quarterly Report were continued. Two different tasks are discussed 1 The improvement of the resonant frequency-temperature characteristics, frT, characteristics of the zero coefficient materials, compositions ranging from Pb0.60Ba0.40Nb206 to Pb0.54Ba0.46Nb206. These were synthesized by making blends of the calcined single phase end members. The object being to attain the appropriate balance of phases in the final specimen to yield a flat frT characteristic. 2 The substitution of Sr for Ba in Pb0.70Ba0.30Nb206 was made to this high Qm composition to improve the frT characteristics by increasing the Curie temperature. Problems in repeating Qm compositions impeded this study. A computer program for calculation and tabulation of results from experimental data was developed. Author

Author(s):
Dietz, J. P. ; Willis, W. L.
Author Organization(s):
GENERAL ELECTRIC CO SYRACUSE NY ELECTRONICS LAB
Descriptive Note:
Quarterly progress rept. no. 2, 1 Jun-31 Aug 65,
Annotation:
Ceramic resonator material for I.F. filters.
Pagination:
0031

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Contract/Grant Number(s):
DA-28-043-AMC-01220-E
Task Number(s):
1CO24401A34833
Project Number(s):
DA-1C024401A348
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*CERAMIC MATERIALS), (*RESONATORS, (*FERROELECTRIC MATERIALS, RESONATORS), NIOBATES, LEAD COMPOUNDS, BARIUM COMPOUNDS, THERMAL EXPANSION, RESONANT FREQUENCY, STABILITY, THERMAL PROPERTIES, PHASE STUDIES, STRONTIUM, COMPUTER PROGRAMMING, INTERMEDIATE FREQUENCIES
Field(s)/Group(s):
Electrical and Electronic Equipment, Ceramics, Refractories and Glass
Report Date:
1965 Aug 31