Preparation and absorption characteristics of Ni-Zn ferrite/SiC sintered composites prepared by pre-ceramics method

Makoto Nakanishi, Masaki Yoshino, Tatsuo Fujii, Jun Takada, Minoru Fukuhara

Research output: Contribution to journalArticle

Abstract

Ni-Zn ferrite/SiC sintered composite was prepared as electromagnetic wave absorber through pre-ceramics method and subsequent annealing at 1273 K. Amorphous SiC particles dispersed uniformly in Ni-Zn ferrite matrix and the density of the composites decreased with increasing the amount of SiC particles. The absorption characteristics of the sintered composite were found to depend upon the amount of SiC particles. The matching frequency of the composites shifted toward higher frequency, from about 100 MHz to 1 GHz, with increasing the amount of SiC particles.

Original languageEnglish
Pages (from-to)927-930
Number of pages4
JournalFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume47
Issue number8
Publication statusPublished - Aug 2000

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Ferrite
Composite materials
Electromagnetic waves
Annealing

ASJC Scopus subject areas

  • Mechanical Engineering
  • Metals and Alloys

Cite this

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AU - Nakanishi, Makoto

AU - Yoshino, Masaki

AU - Fujii, Tatsuo

AU - Takada, Jun

AU - Fukuhara, Minoru

PY - 2000/8

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N2 - Ni-Zn ferrite/SiC sintered composite was prepared as electromagnetic wave absorber through pre-ceramics method and subsequent annealing at 1273 K. Amorphous SiC particles dispersed uniformly in Ni-Zn ferrite matrix and the density of the composites decreased with increasing the amount of SiC particles. The absorption characteristics of the sintered composite were found to depend upon the amount of SiC particles. The matching frequency of the composites shifted toward higher frequency, from about 100 MHz to 1 GHz, with increasing the amount of SiC particles.

AB - Ni-Zn ferrite/SiC sintered composite was prepared as electromagnetic wave absorber through pre-ceramics method and subsequent annealing at 1273 K. Amorphous SiC particles dispersed uniformly in Ni-Zn ferrite matrix and the density of the composites decreased with increasing the amount of SiC particles. The absorption characteristics of the sintered composite were found to depend upon the amount of SiC particles. The matching frequency of the composites shifted toward higher frequency, from about 100 MHz to 1 GHz, with increasing the amount of SiC particles.

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