Misorientation dependence of grain boundary resistivity in Nb-doped barium titanate

Katsuro Hayashi, Takahisa Yamamoto, Yuichi Ikuhara, Taketo Sakuma

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


The influence of orientation of grain boundary plane as well as misorientation of grain boundary on positive temperature coefficient of resistivity (PTCR) was examined in 0.1mol%Nb-doped barium titanate. The magnitude of the PTCR effect mainly depends on tilt component of misorientation as compared to twist one. This dependence is considered to be related to the fact that grain boundary with low-index plane has low grain boundary energy, and hence hinders the formation of potential barrier.

Original languageEnglish
Pages (from-to)51-54
Number of pages4
JournalKey Engineering Materials
Issue number181-182
Publication statusPublished - 2000 Jan 1
Externally publishedYes


  • Coincidence Site Lattice (CSL)
  • Positive Temperature Coefficient of Resistivity (PTCR)
  • Potential Barrier
  • Single Grain Boundary

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering


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