Coating and spark plasma sintering of nano-sized TiN on alumina particles of different size, shape and structure

Shiro Shimada; Anongsack Paseuth; Hajime Kiyono

doi:10.2109/jcersj2.117.47

Coating and spark plasma sintering of nano-sized TiN on alumina particles of different size, shape and structure

Shiro Shimada, Anongsack Paseuth, Hajime Kiyono

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

TiN-coated Al₂O₃ particles of different size, shape and crystal structure were prepared by depositing nano-size TiO₂ on the Al₂O₃ surfaces from Ti(O-i-C₃H ₇)₄ solution (TiO₂ precursor) by controlled hydrolysis, then nitrided with NH₃ at 1000°C. Irrespective of the source of Al₂O₃ particles, a homogeneous TiO₂ coating was achieved by heating from 10 to 40°C an ultrasonic suspension of the Al₂O₃ particles containing the precursor with 1.0 vol% H₂O. After nitridation, the Al₂O₃ grains were coated with 10-20 nm TiN particles. Spark plasma sintering of the TiN/Al ₂O₃ particles at 1500°C and 1600°C yielded the composite ceramics with a relative density of 94-97%. Composite TiN/Al ₂O₃ ceramics with an electrical resistivity of ∼10^-2 Ω. cm were obtained at 25 vol% TiN composition.

Original language	English
Pages (from-to)	47-51
Number of pages	5
Journal	Journal of the Ceramic Society of Japan
Volume	117
Issue number	1361
DOIs	https://doi.org/10.2109/jcersj2.117.47
Publication status	Published - 2009 Jan
Externally published	Yes

Keywords

Alumina
Coating
Composites
Nano-sized TiN
Spark plasma sintering

ASJC Scopus subject areas

Ceramics and Composites
Chemistry(all)
Condensed Matter Physics
Materials Chemistry

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@article{c6a5340be63b49789c7074f117fba6f0,

title = "Coating and spark plasma sintering of nano-sized TiN on alumina particles of different size, shape and structure",

abstract = "TiN-coated Al2O3 particles of different size, shape and crystal structure were prepared by depositing nano-size TiO2 on the Al2O3 surfaces from Ti(O-i-C3H 7)4 solution (TiO2 precursor) by controlled hydrolysis, then nitrided with NH3 at 1000°C. Irrespective of the source of Al2O3 particles, a homogeneous TiO2 coating was achieved by heating from 10 to 40°C an ultrasonic suspension of the Al2O3 particles containing the precursor with 1.0 vol% H2O. After nitridation, the Al2O3 grains were coated with 10-20 nm TiN particles. Spark plasma sintering of the TiN/Al 2O3 particles at 1500°C and 1600°C yielded the composite ceramics with a relative density of 94-97%. Composite TiN/Al 2O3 ceramics with an electrical resistivity of ∼10-2 Ω. cm were obtained at 25 vol% TiN composition.",

keywords = "Alumina, Coating, Composites, Nano-sized TiN, Spark plasma sintering",

author = "Shiro Shimada and Anongsack Paseuth and Hajime Kiyono",

year = "2009",

month = jan,

doi = "10.2109/jcersj2.117.47",

language = "English",

volume = "117",

pages = "47--51",

journal = "Journal of the Ceramic Society of Japan",

issn = "1882-0743",

publisher = "Ceramic Society of Japan/Nippon Seramikkusu Kyokai",

number = "1361",

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TY - JOUR

T1 - Coating and spark plasma sintering of nano-sized TiN on alumina particles of different size, shape and structure

AU - Shimada, Shiro

AU - Paseuth, Anongsack

AU - Kiyono, Hajime

PY - 2009/1

Y1 - 2009/1

N2 - TiN-coated Al2O3 particles of different size, shape and crystal structure were prepared by depositing nano-size TiO2 on the Al2O3 surfaces from Ti(O-i-C3H 7)4 solution (TiO2 precursor) by controlled hydrolysis, then nitrided with NH3 at 1000°C. Irrespective of the source of Al2O3 particles, a homogeneous TiO2 coating was achieved by heating from 10 to 40°C an ultrasonic suspension of the Al2O3 particles containing the precursor with 1.0 vol% H2O. After nitridation, the Al2O3 grains were coated with 10-20 nm TiN particles. Spark plasma sintering of the TiN/Al 2O3 particles at 1500°C and 1600°C yielded the composite ceramics with a relative density of 94-97%. Composite TiN/Al 2O3 ceramics with an electrical resistivity of ∼10-2 Ω. cm were obtained at 25 vol% TiN composition.

AB - TiN-coated Al2O3 particles of different size, shape and crystal structure were prepared by depositing nano-size TiO2 on the Al2O3 surfaces from Ti(O-i-C3H 7)4 solution (TiO2 precursor) by controlled hydrolysis, then nitrided with NH3 at 1000°C. Irrespective of the source of Al2O3 particles, a homogeneous TiO2 coating was achieved by heating from 10 to 40°C an ultrasonic suspension of the Al2O3 particles containing the precursor with 1.0 vol% H2O. After nitridation, the Al2O3 grains were coated with 10-20 nm TiN particles. Spark plasma sintering of the TiN/Al 2O3 particles at 1500°C and 1600°C yielded the composite ceramics with a relative density of 94-97%. Composite TiN/Al 2O3 ceramics with an electrical resistivity of ∼10-2 Ω. cm were obtained at 25 vol% TiN composition.

KW - Alumina

KW - Coating

KW - Composites

KW - Nano-sized TiN

KW - Spark plasma sintering

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JO - Journal of the Ceramic Society of Japan

JF - Journal of the Ceramic Society of Japan

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ER -

Coating and spark plasma sintering of nano-sized TiN on alumina particles of different size, shape and structure

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Keywords

ASJC Scopus subject areas

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