Dielectric and magnetic properties of low-temperature-fired ferrite-dielectric composites

Hsing I. Hsiang, Tai How Chen

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

The composition effects on the sintering behavior, microstructure evolution, dielectric, and magnetic properties of BaO·(Nd 0.8Bi0.2)2O3·4TiO 2 (BNBT)+Bi2O3-B2O 3-SiO2-ZnO (BBSZ) glass-(Ni0.28Cu 0.12Zn0.6O)-(Fe2O3)0.99 (NiCuZn ferrite) composites were investigated in developing low-temperature- fired composites for high-frequency electromagnetic interference devices. An X-ray diffractometer, a scanning electron microscope, and a dilatometer were used to examine the BNBT+BBSZ glass powder to NiCuZn ferrite ratio effect on the composites densification and chemical reaction between BNBT and NiCuZn ferrite. The results indicate that these composites can be densified at 950°C with no significant chemical reactions occurring between BNBT and NiCuZn ferrites during sintering. The BNBT+BBSZ glass-NiCuZn ferrite composites sintered at 950°C exhibit excellent dielectric and magnetic properties over a wide frequency range.

Original languageEnglish
Pages (from-to)2043-2046
Number of pages4
JournalJournal of the American Ceramic Society
Volume91
Issue number6
DOIs
Publication statusPublished - 2008 Jun 1

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Dielectric properties
Ferrite
Magnetic properties
Composite materials
Glass
Chemical reactions
Sintering
Temperature
Composition effects
Dilatometers
Ferrites
Diffractometers
Signal interference
Densification
Powders
Electron microscopes
Scanning
X rays
Microstructure

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

Cite this

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abstract = "The composition effects on the sintering behavior, microstructure evolution, dielectric, and magnetic properties of BaO·(Nd 0.8Bi0.2)2O3·4TiO 2 (BNBT)+Bi2O3-B2O 3-SiO2-ZnO (BBSZ) glass-(Ni0.28Cu 0.12Zn0.6O)-(Fe2O3)0.99 (NiCuZn ferrite) composites were investigated in developing low-temperature- fired composites for high-frequency electromagnetic interference devices. An X-ray diffractometer, a scanning electron microscope, and a dilatometer were used to examine the BNBT+BBSZ glass powder to NiCuZn ferrite ratio effect on the composites densification and chemical reaction between BNBT and NiCuZn ferrite. The results indicate that these composites can be densified at 950°C with no significant chemical reactions occurring between BNBT and NiCuZn ferrites during sintering. The BNBT+BBSZ glass-NiCuZn ferrite composites sintered at 950°C exhibit excellent dielectric and magnetic properties over a wide frequency range.",
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Dielectric and magnetic properties of low-temperature-fired ferrite-dielectric composites. / Hsiang, Hsing I.; Chen, Tai How.

In: Journal of the American Ceramic Society, Vol. 91, No. 6, 01.06.2008, p. 2043-2046.

Research output: Contribution to journalArticle

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