Influence of Bi2O3 and MnO2 doping on microwave properties of [(Pb,Ca) La](Fe,Nb)O3 dielectric ceramics
- 1. Shool of Physics and Electronics, Hubei University, Xueyuan Road, 430062 Wuhan, Hubei (China)
- 2. Electronic Department, Hua Zhong University of Science and Technology, Luoyu Road, 430074 Wuhan, Hubei (China)
Description
The effect of Bi2O3 and MnO2 addition in [(Pb0.5Ca0.5)0.92La0.08](Fe0.5Nb0.5)O3 system on the sintering and dielectric properties have been investigated using X-ray diffractions and post-resonator measurement. Perovskite and pyrochlore phase exist in samples with MnO2 content -bar 2wt.% while specimens with Bi2O3 doping possessed the third unknown phase. The dielectric properties could be obviously adjusted as well as reducing the sintering temperature in both Bi2O3 and MnO2 addition system. It was found that Bi2O3 and MnO2 co-doping could reduce the sintering temperature more effectively by 100-140oC while improve the microwave dielectric properties. Microwave dielectric properties of -bar r=91.1, Qf=4870GHz and τf=18.5ppm/oC could be obtained in [(Pb0.5Ca0.5)0.92La0.08](Fe0.5Nb0.5)O3 system when k=1, w=1wt.% and sintered at 1050oC for 4h
Additional details
Identifiers
- DOI
- 10.1016/j.mseb.2004.11.022;
- PII
- S0921-5107(04)00615-4;
Publishing Information
- Journal Title
- Materials Science and Engineering. B, Solid-State Materials for Advanced Technology
- Journal Volume
- 117
- Journal Issue
- 2
- Journal Page Range
- p. 199-204
- ISSN
- 0921-5107
- CODEN
- MSBTEK
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 37114454
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- BISMUTH OXIDES; CALCIUM COMPOUNDS; CERAMICS; DIELECTRIC MATERIALS; DIELECTRIC PROPERTIES; FERRITES; LANTHANUM COMPOUNDS; LEAD COMPOUNDS; MANGANESE OXIDES; MICROWAVE RADIATION; NIOBATES; PEROVSKITE; PYROCHLORE; RESONATORS; SINTERING; X-RAY DIFFRACTION
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; BISMUTH COMPOUNDS; CHALCOGENIDES; COHERENT SCATTERING; DIFFRACTION; ELECTRICAL PROPERTIES; ELECTROMAGNETIC RADIATION; ELECTRONIC EQUIPMENT; EQUIPMENT; FABRICATION; FERRIMAGNETIC MATERIALS; IRON COMPOUNDS; MAGNETIC MATERIALS; MANGANESE COMPOUNDS; MATERIALS; MINERALS; NIOBIUM COMPOUNDS; OXIDE MINERALS; OXIDES; OXYGEN COMPOUNDS; PEROVSKITES; PHYSICAL PROPERTIES; RADIATIONS; RARE EARTH COMPOUNDS; REFRACTORY METAL COMPOUNDS; SCATTERING; TRANSITION ELEMENT COMPOUNDS
Optional Information
- Copyright
- Copyright (c) 2004 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.