High temperature piezoelectric single crystals: Sr&lt;inf&gt;3&lt;/inf&gt;NbGa&lt;inf&gt;3&lt;/inf&gt;Si&lt;inf&gt;2&lt;/inf&gt;O&lt;inf&gt;14&lt;/inf&gt;, Sr&lt;inf&gt;3&lt;/inf&gt;TaGa&lt;inf&gt;3&lt;/inf&gt;Si&lt;inf&gt;2&lt;/inf&gt;O&lt;inf&gt;14&lt;/inf&gt; and GdCa&lt;inf&gt;4&lt;/inf&gt;O(BO&lt;inf&gt;3&lt;/inf&gt;)&lt;inf&gt;3&lt;/inf&gt;

A. V. Sotnikov; H. Schmidt; M. Weihnacht; M. Hengst; Robert Möckel; Jens Götze; G. Heide

doi:10.1109/isaf.2012.6297781

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High temperature piezoelectric single crystals: Sr<inf>3</inf>NbGa<inf>3</inf>Si<inf>2</inf>O<inf>14</inf>, Sr<inf>3</inf>TaGa<inf>3</inf>Si<inf>2</inf>O<inf>14</inf> and GdCa<inf>4</inf>O(BO<inf>3</inf>)<inf>3</inf>

A. V. Sotnikov H. Schmidt M. Weihnacht M. Hengst Robert Möckel Jens Götze G. Heide

Year: 2012 Vol: 40 Pages: 1-3

DOI: 10.1109/isaf.2012.6297781

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Abstract

We have successfully grown high quality piezoelectric single crystals of Sr ₃ NbGa ₃ Si ₂ O ₁₄ (SNGS), Sr ₃ TaGa ₃ Si ₂ O ₁₄ (STGS) and GdCa ₄ O(BO ₃ ) ₃ (GdCOB) by the Czochralski technique. Dielectric, elastic and piezoelectric constants of SNGS and STGS were measured in a temperature range from 25°C to 400°C. Some parameters of SNGS, STGS and GdCOB crystals important for acoustic applications have been investigated also at temperatures up to 940°C. The strong piezoelectric activity of all investigated materials is kept at least up to this high temperature.

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Acoustic Wave Resonator Technologies

Physical Sciences → Engineering → Biomedical Engineering

Ferroelectric and Piezoelectric Materials

Physical Sciences → Materials Science → Materials Chemistry

Microwave Dielectric Ceramics Synthesis

Physical Sciences → Engineering → Electrical and Electronic Engineering

High temperature piezoelectric single crystals: Sr<inf>3</inf>NbGa<inf>3</inf>Si<inf>2</inf>O<inf>14</inf>, Sr<inf>3</inf>TaGa<inf>3</inf>Si<inf>2</inf>O<inf>14</inf> and GdCa<inf>4</inf>O(BO<inf>3</inf>)<inf>3</inf>

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