Electrical and mechanical properties of nano-sized TiN-Al2O3 ceramics

Zhihua Yang; Dechang Jia; Leiyang Chu; Xiaoming Duan; Fang Luo; Yu Zhou; Peifeng Zhang

Electrical and mechanical properties of nano-sized TiN-Al₂O₃ ceramics

Zhihua Yang^*
, Dechang Jia
, Leiyang Chu
, Xiaoming Duan
, Fang Luo
, Yu Zhou
, Peifeng Zhang

^*Corresponding author for this work

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

3 Scopus citations

Abstract

Nano TiN-Al₂O₃ composite ceramics were prepared by hot-pressing using nano Al₂O₃ and TiN as raw materials and SiO2 as sintering additive. The flexural strength of the as-prepared ceramics is up to 565.8 MPa and the fracture toughness is between 4 and 6 MPa · m^1/2. The cubic TiN grains are homogenously distributed in Al₂O₃ matrix in the composite ceramics. Most of TiN particles lay in the grain boundaries of Al₂O₃. When the volume fraction of TiN was 5%, the electrical resistivity of TiN-Al₂O₃ composite ceramics is between 10¹² to 10⁴ Ω · cm. The highest on-load voltage of the ceramics could reach 0.75 kV/mm.

Original language	English
Pages (from-to)	1480-1483+1492
Journal	Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society
Volume	38
Issue number	8
State	Published - Aug 2010
Externally published	Yes

Keywords

Alumina-titanium nitride composite ceramics
Conductive ceramics
Electrical properties
Mechanical properties

Cite this

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title = "Electrical and mechanical properties of nano-sized TiN-Al2O3 ceramics",

abstract = "Nano TiN-Al2O3 composite ceramics were prepared by hot-pressing using nano Al2O3 and TiN as raw materials and SiO2 as sintering additive. The flexural strength of the as-prepared ceramics is up to 565.8 MPa and the fracture toughness is between 4 and 6 MPa · m1/2. The cubic TiN grains are homogenously distributed in Al2O3 matrix in the composite ceramics. Most of TiN particles lay in the grain boundaries of Al2O3. When the volume fraction of TiN was 5\%, the electrical resistivity of TiN-Al2O3 composite ceramics is between 1012 to 104 Ω · cm. The highest on-load voltage of the ceramics could reach 0.75 kV/mm.",

keywords = "Alumina-titanium nitride composite ceramics, Conductive ceramics, Electrical properties, Mechanical properties",

author = "Zhihua Yang and Dechang Jia and Leiyang Chu and Xiaoming Duan and Fang Luo and Yu Zhou and Peifeng Zhang",

year = "2010",

month = aug,

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volume = "38",

pages = "1480--1483+1492",

journal = "Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society",

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publisher = "Chinese Ceramic Society",

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TY - JOUR

T1 - Electrical and mechanical properties of nano-sized TiN-Al2O3 ceramics

AU - Yang, Zhihua

AU - Jia, Dechang

AU - Chu, Leiyang

AU - Duan, Xiaoming

AU - Luo, Fang

AU - Zhou, Yu

AU - Zhang, Peifeng

PY - 2010/8

Y1 - 2010/8

N2 - Nano TiN-Al2O3 composite ceramics were prepared by hot-pressing using nano Al2O3 and TiN as raw materials and SiO2 as sintering additive. The flexural strength of the as-prepared ceramics is up to 565.8 MPa and the fracture toughness is between 4 and 6 MPa · m1/2. The cubic TiN grains are homogenously distributed in Al2O3 matrix in the composite ceramics. Most of TiN particles lay in the grain boundaries of Al2O3. When the volume fraction of TiN was 5%, the electrical resistivity of TiN-Al2O3 composite ceramics is between 1012 to 104 Ω · cm. The highest on-load voltage of the ceramics could reach 0.75 kV/mm.

AB - Nano TiN-Al2O3 composite ceramics were prepared by hot-pressing using nano Al2O3 and TiN as raw materials and SiO2 as sintering additive. The flexural strength of the as-prepared ceramics is up to 565.8 MPa and the fracture toughness is between 4 and 6 MPa · m1/2. The cubic TiN grains are homogenously distributed in Al2O3 matrix in the composite ceramics. Most of TiN particles lay in the grain boundaries of Al2O3. When the volume fraction of TiN was 5%, the electrical resistivity of TiN-Al2O3 composite ceramics is between 1012 to 104 Ω · cm. The highest on-load voltage of the ceramics could reach 0.75 kV/mm.

KW - Alumina-titanium nitride composite ceramics

KW - Conductive ceramics

KW - Electrical properties

KW - Mechanical properties

UR - https://www.scopus.com/pages/publications/77956527886

M3 - 文章

AN - SCOPUS:77956527886

SN - 0454-5648

VL - 38

SP - 1480-1483+1492

JO - Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society

JF - Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society

IS - 8

ER -

Electrical and mechanical properties of nano-sized TiN-Al₂O₃ ceramics

Abstract

Keywords

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