Synthesis of nanograined ZrO2-based composites by chemical processing and pulse electric current sintering

Masashi Yoshimura; Tatsuki Ohjl; Mutsuo Sando; Yong Ho Choa; Tohru Sekino; Koichi Niihara

doi:10.1016/S0167-577X(98)00125-6

Synthesis of nanograined ZrO₂-based composites by chemical processing and pulse electric current sintering

Masashi Yoshimura, Tatsuki Ohjl, Mutsuo Sando, Yong Ho Choa, Tohru Sekino, Koichi Niihara

Institute of Multidisciplinary Research for Advanced Materials (IMRAM)

Research output: Contribution to journal › Article

21 Citations (Scopus)

Abstract

Nanograined yttrium-stabilized ZrO₂/Al₂O₃ composites were fabricated by a pulse electric current sintering (PECS) method. The starting powders with sizes less than 10 nm were successfully synthesized by the chemical process. The composites sintered at temperatures above 1300°C showed the relative density above 98%. Examination by transmission electron microscopy (TEM) showed that the yttrium-stabilized ZrO₂/10 mol% Al₂O₃ composite consisted of the homogeneous and very fine matrix grains with sizes less than 100 nm.

Original language	English
Pages (from-to)	18-21
Number of pages	4
Journal	Materials Letters
Volume	38
Issue number	1
DOIs	https://doi.org/10.1016/S0167-577X(98)00125-6
Publication status	Published - 1999 Jan 1

Keywords

Chemical processing
Nanograined material
Pulse electric current sintering
ZrO/AlO composites

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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title = "Synthesis of nanograined ZrO2-based composites by chemical processing and pulse electric current sintering",

abstract = "Nanograined yttrium-stabilized ZrO2/Al2O3 composites were fabricated by a pulse electric current sintering (PECS) method. The starting powders with sizes less than 10 nm were successfully synthesized by the chemical process. The composites sintered at temperatures above 1300°C showed the relative density above 98%. Examination by transmission electron microscopy (TEM) showed that the yttrium-stabilized ZrO2/10 mol% Al2O3 composite consisted of the homogeneous and very fine matrix grains with sizes less than 100 nm.",

keywords = "Chemical processing, Nanograined material, Pulse electric current sintering, ZrO/AlO composites",

author = "Masashi Yoshimura and Tatsuki Ohjl and Mutsuo Sando and Choa, {Yong Ho} and Tohru Sekino and Koichi Niihara",

year = "1999",

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T1 - Synthesis of nanograined ZrO2-based composites by chemical processing and pulse electric current sintering

AU - Yoshimura, Masashi

AU - Ohjl, Tatsuki

AU - Sando, Mutsuo

AU - Choa, Yong Ho

AU - Sekino, Tohru

AU - Niihara, Koichi

PY - 1999/1/1

Y1 - 1999/1/1

N2 - Nanograined yttrium-stabilized ZrO2/Al2O3 composites were fabricated by a pulse electric current sintering (PECS) method. The starting powders with sizes less than 10 nm were successfully synthesized by the chemical process. The composites sintered at temperatures above 1300°C showed the relative density above 98%. Examination by transmission electron microscopy (TEM) showed that the yttrium-stabilized ZrO2/10 mol% Al2O3 composite consisted of the homogeneous and very fine matrix grains with sizes less than 100 nm.

AB - Nanograined yttrium-stabilized ZrO2/Al2O3 composites were fabricated by a pulse electric current sintering (PECS) method. The starting powders with sizes less than 10 nm were successfully synthesized by the chemical process. The composites sintered at temperatures above 1300°C showed the relative density above 98%. Examination by transmission electron microscopy (TEM) showed that the yttrium-stabilized ZrO2/10 mol% Al2O3 composite consisted of the homogeneous and very fine matrix grains with sizes less than 100 nm.

KW - Chemical processing

KW - Nanograined material

KW - Pulse electric current sintering

KW - ZrO/AlO composites

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