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 journalArticlepeer-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 languageEnglish
Pages (from-to)5-9
Number of pages5
JournalJournal of Alloys and Compounds
Volume531
DOIs
Publication statusPublished - 2012 Aug 5
Externally publishedYes

Keywords

  • Coating
  • Electrical conductivity
  • Thermoelectric
  • Thermopower

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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