Effect of coated TiO 2 nano-particle on thermoelectric performance of TiC 0.5O 0.5 Ceramics

Yong Liu; Chunlin Ou; Jungang Hou; Hongmin Zhu

doi:10.1016/j.jallcom.2012.02.176

Effect of coated TiO ₂ nano-particle on thermoelectric performance of TiC _0.5O _0.5 Ceramics

Yong Liu, Chunlin Ou, Jungang Hou, Hongmin Zhu

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

2 Citations (Scopus)

Abstract

The polycrystalline TiO ₂@TiC _0.5-xO _0.5+x ceramics with core-shell structure were prepared through the spark plasma sintering process. Both thermoelectric (TE) transport properties and microstructure of the ceramics were investigated. The TiO ₂ shell had a remarkable effect on the transport properties of the system. Large electrical conductivity and thermopower was observed in coating 15% TiO ₂@TiC _0.5O _0.5 sample. The maximum power factor is 8.1 × 10 ^-4 W m ^-1 K ^-2 and the corresponding ZT value is 0.3 at 873 K for 15% TiO ₂@TiC _0.5O _0.5.

Original language	English
Pages (from-to)	5-9
Number of pages	5
Journal	Journal of Alloys and Compounds
Volume	531
DOIs	https://doi.org/10.1016/j.jallcom.2012.02.176
Publication status	Published - 2012 Aug 5
Externally published	Yes

Keywords

Coating
Electrical conductivity
Thermoelectric
Thermopower

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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@article{4776f3c854cc4dd289d2f53ddbacac89,

title = "Effect of coated TiO 2 nano-particle on thermoelectric performance of TiC 0.5O 0.5 Ceramics",

abstract = "The polycrystalline TiO 2@TiC 0.5-xO 0.5+x ceramics with core-shell structure were prepared through the spark plasma sintering process. Both thermoelectric (TE) transport properties and microstructure of the ceramics were investigated. The TiO 2 shell had a remarkable effect on the transport properties of the system. Large electrical conductivity and thermopower was observed in coating 15% TiO 2@TiC 0.5O 0.5 sample. The maximum power factor is 8.1 × 10 -4 W m -1 K -2 and the corresponding ZT value is 0.3 at 873 K for 15% TiO 2@TiC 0.5O 0.5.",

keywords = "Coating, Electrical conductivity, Thermoelectric, Thermopower",

author = "Yong Liu and Chunlin Ou and Jungang Hou and Hongmin Zhu",

note = "Funding Information: This work was financially supported by the Ministry of Science and Technology of China through a 973-Project, under grant no. 2007CB607505 , and the Natural Science Fund of China under grant no. 11220119 . Copyright: Copyright 2012 Elsevier B.V., All rights reserved.",

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doi = "10.1016/j.jallcom.2012.02.176",

language = "English",

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journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

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T1 - Effect of coated TiO 2 nano-particle on thermoelectric performance of TiC 0.5O 0.5 Ceramics

AU - Liu, Yong

AU - Ou, Chunlin

AU - Hou, Jungang

AU - Zhu, Hongmin

N1 - Funding Information: This work was financially supported by the Ministry of Science and Technology of China through a 973-Project, under grant no. 2007CB607505 , and the Natural Science Fund of China under grant no. 11220119 . Copyright: Copyright 2012 Elsevier B.V., All rights reserved.

PY - 2012/8/5

Y1 - 2012/8/5

N2 - The polycrystalline TiO 2@TiC 0.5-xO 0.5+x ceramics with core-shell structure were prepared through the spark plasma sintering process. Both thermoelectric (TE) transport properties and microstructure of the ceramics were investigated. The TiO 2 shell had a remarkable effect on the transport properties of the system. Large electrical conductivity and thermopower was observed in coating 15% TiO 2@TiC 0.5O 0.5 sample. The maximum power factor is 8.1 × 10 -4 W m -1 K -2 and the corresponding ZT value is 0.3 at 873 K for 15% TiO 2@TiC 0.5O 0.5.

AB - The polycrystalline TiO 2@TiC 0.5-xO 0.5+x ceramics with core-shell structure were prepared through the spark plasma sintering process. Both thermoelectric (TE) transport properties and microstructure of the ceramics were investigated. The TiO 2 shell had a remarkable effect on the transport properties of the system. Large electrical conductivity and thermopower was observed in coating 15% TiO 2@TiC 0.5O 0.5 sample. The maximum power factor is 8.1 × 10 -4 W m -1 K -2 and the corresponding ZT value is 0.3 at 873 K for 15% TiO 2@TiC 0.5O 0.5.

KW - Coating

KW - Electrical conductivity

KW - Thermoelectric

KW - Thermopower

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