HYDROTHERMAL REACTION SINTERING OF PERMALLOY-IRON OXIDE COMPOSITE.

Takahiro Nakagawa, Kimiyuki Kamino, Masahiro Yoshimura, Shigeyuki Somiya

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1 Citation (Scopus)

Abstract

Hydrothermal reaction sintering is one of the methods to prepare oxides ceramics. Metals, intermetallic compounds or alloys are sealed in a Pt capsule with water. On heating they react with high pressure high temperature water, and produce metal oxides and hydrogen gas. The known quantities of alloy powders; water-atomized permalloy powder (Fe-47 wt% Ni less than #100, and Fe-36 wt% Ni less than #100) and redistilled water were hermetically sealed with an electric arc in a platinum capsule 2. 7 mm inside diameter, 0. 15 mm thick and 35 mm long. This capsule was treated at 100 MPa, 800 degree -1000 degree C, for 10-240 min in a high pressure high temperature apparatus using Ar gas as pressurizing medium. The produced sintered ceramics were examined by X-ray diffraction, optical and scanning electron microscopy, and energy dispersive spectroscopy (EDS).

Original languageEnglish
Pages (from-to)1131-1135
Number of pages5
JournalYogyo Kyokai Shi/Journal of the Ceramic Society of Japan
Volume94
Issue number11
Publication statusPublished - 1986 Dec 1

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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