Microwave heating behavior in SiC Fiber-MO2 mixtures (M = Ce, Zr)-selective heating of micrometer-sized fibers facilitated by ZrO2 Powder

Keiichiro Kashimura, Jun Fukushima, Tomoaki Namioka, Takashi Fujii, Hirotsugu Takizawa, Hideoki Fukushima

研究成果: Article査読

1 被引用数 (Scopus)

抄録

SiC fiber-MO2 (M= Ce, Zr) mixtures with various compositions were heated by applying an 80 W microwave electric field, to investigate their heating rate, maximum temperature, and dielectric constant. For the SiC fiber-CeO2 mixture, all three parameters continued to increase as the weight ratio of the SiC fiber increased; in contrast, for the SiC fiber-ZrO2 mixture, these parameters reached a maximum value at a certain composition. A thermal gradient of 500 °C was observed at a microlevel in the SiC fiber-ZrO2 mixture, and hot spots were located in regions with a certain composition. This result not only contributes to designing a novel good microwave absorber but also presents new aspects with regard to high-temperature microwave processing, including the mechanism behind the high-temperature gradients on the order of micrometers as well as engineering applications that utilize these high-temperature gradients.

本文言語English
論文番号47
ジャーナルProcesses
8
1
DOI
出版ステータスPublished - 2020 1 1

ASJC Scopus subject areas

  • バイオエンジニアリング
  • 化学工学(その他)
  • プロセス化学およびプロセス工学

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