Growth and characterization of Ca2Al2SiO7 piezoelectric single crystals for high-temperature sensor applications

Manabu Hagiwara, Hiroaki Noguchi, Takuya Hoshina, Hiroaki Takeda, Shinobu Fujihara, Nobuhiro Kodama, Takaaki Tsurumi

Research output: Contribution to journalArticle

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Abstract

The electrical properties of a piezoelectric single crystal of calcium aluminate silicate Ca2Al2SiO7 (CAS) were studied at elevated temperatures and its applicability to high-temperature pressure sensors was investigated. The CAS bulk single crystal was grown by the Czochralski method. The piezoelectric d14 and d36 constants were respectively evaluated as 6.04 and 4.04 pC/N by the resonance and antiresonance method. The temperature dependence of the piezoelectric constant was investigated at temperatures up to 500 °C. The electrical resistivity at 800 °C was on the order of 108 Ω·cm along both the crystallographic a- and c-axes. The measurement of direct piezoelectric response at 700 °C demonstrated that the CAS crystal could detect a pseudo-combustion pressure change of an automobile engine. Our observations suggest that CAS crystals are superior candidates for sensing pressure at high temperatures.

Original languageEnglish
Article number09KD03
JournalJapanese Journal of Applied Physics
Volume52
Issue number9 PART2
DOIs
Publication statusPublished - 2013 Sep

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piezoelectric crystals
temperature sensors
Temperature sensors
automobile engines
Single crystals
calcium silicates
Czochralski method
single crystals
pressure sensors
crystals
electrical properties
Automobile engines
Calcium silicate
Temperature
temperature dependence
Crystals
electrical resistivity
Crystal growth from melt
temperature
Pressure sensors

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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Growth and characterization of Ca2Al2SiO7 piezoelectric single crystals for high-temperature sensor applications. / Hagiwara, Manabu; Noguchi, Hiroaki; Hoshina, Takuya; Takeda, Hiroaki; Fujihara, Shinobu; Kodama, Nobuhiro; Tsurumi, Takaaki.

In: Japanese Journal of Applied Physics, Vol. 52, No. 9 PART2, 09KD03, 09.2013.

Research output: Contribution to journalArticle

Hagiwara, Manabu ; Noguchi, Hiroaki ; Hoshina, Takuya ; Takeda, Hiroaki ; Fujihara, Shinobu ; Kodama, Nobuhiro ; Tsurumi, Takaaki. / Growth and characterization of Ca2Al2SiO7 piezoelectric single crystals for high-temperature sensor applications. In: Japanese Journal of Applied Physics. 2013 ; Vol. 52, No. 9 PART2.
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