Calcium aluminate silicate Ca2Al2SiO7 single crystal applicable to piezoelectric sensors at high temperature

Hiroaki Takeda, Manabu Hagiwara, Hiroaki Noguchi, Takuya Hoshina, Tomoko Takahashi, Nobuhiro Kodama, Takaaki Tsurumi

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

Ca2Al2SiO7 (CAS) bulk single crystals were grown by the Czochralski method. Material constants of the crystal were determined over the driving temperature range of a typical combustion pressure sensor. The electrical resistivity at 800°C was found to be of the order of 108 Ωcm. We constructed a measurement system for the direct piezoelectric effect at high temperature, and characterized the crystals in a simulated engine cylinder combustion environment. Output charge signal against applied stress was detected at 700°C. These observations suggest that CAS crystals are superior candidate materials for high temperature for stress sensing.

Original languageEnglish
Article number242907
JournalApplied Physics Letters
Volume102
Issue number24
DOIs
Publication statusPublished - 2013 Jun 17
Externally publishedYes

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calcium silicates
sensors
single crystals
crystals
Czochralski method
pressure sensors
engines
electrical resistivity
output
temperature

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Calcium aluminate silicate Ca2Al2SiO7 single crystal applicable to piezoelectric sensors at high temperature. / Takeda, Hiroaki; Hagiwara, Manabu; Noguchi, Hiroaki; Hoshina, Takuya; Takahashi, Tomoko; Kodama, Nobuhiro; Tsurumi, Takaaki.

In: Applied Physics Letters, Vol. 102, No. 24, 242907, 17.06.2013.

Research output: Contribution to journalArticle

Takeda, Hiroaki ; Hagiwara, Manabu ; Noguchi, Hiroaki ; Hoshina, Takuya ; Takahashi, Tomoko ; Kodama, Nobuhiro ; Tsurumi, Takaaki. / Calcium aluminate silicate Ca2Al2SiO7 single crystal applicable to piezoelectric sensors at high temperature. In: Applied Physics Letters. 2013 ; Vol. 102, No. 24.
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