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

Shiro Shimada, Anongsack Paseuth, Hajime Kiyono

研究成果: Article

1 引用 (Scopus)

抄録

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.

元の言語English
ページ(範囲)47-51
ページ数5
ジャーナルNippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
117
発行部数1361
出版物ステータスPublished - 2009 1
外部発表Yes

Fingerprint

Spark plasma sintering
Aluminum Oxide
sparks
sintering
Alumina
aluminum oxides
coatings
Coatings
Nitridation
Composite materials
Hydrolysis
Suspensions
Crystal structure
Ultrasonics
Heating
ceramics
Chemical analysis
composite materials
hydrolysis
ultrasonics

ASJC Scopus subject areas

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

これを引用

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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",
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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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