Measurements of LGS, LGN, and LGT thermal coefficients of expansion and density

Malocha, D.C.; Francois‐Saint‐Cyr, Hugues; Richardson, Kathleen; Helmbold, R.C.

doi:10.1109/58.990952

Cited by 21 publications

(14 citation statements)

References 3 publications

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“…As expected, a slight parabolic behaviour of this crystal cut can be observed in this temperature regime (Hornsteiner, 1999;Naumenko and Solie, 2001;Malocha et al, 2002).…”

Section: Measurements and Signal Processingsupporting

confidence: 78%

Investigation of low-temperature cofired ceramics packages for high-temperature SAW sensors

Bardong

Binder

Toskov³

et al. 2016

J. Sens. Sens. Syst.

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Abstract. Surface acoustic wave (SAW) temperature sensor devices have been developed for operating temperatures up to and above 1000 • C. A challenging task to make these devices available on the market is to develop an appropriate housing concept. A concept based on low-temperature cofired ceramics (LTCC) has been investigated and tested under elevated temperatures up to 600 • C. The devices showed promising results up to 450 • C. Thorough analysis of the possible failure mechanisms was done to increase the maximum temperature above this limit in further production cycles.

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“…As expected, a slight parabolic behaviour of this crystal cut can be observed in this temperature regime (Hornsteiner, 1999;Naumenko and Solie, 2001;Malocha et al, 2002).…”

Section: Measurements and Signal Processingsupporting

confidence: 78%

Investigation of low-temperature cofired ceramics packages for high-temperature SAW sensors

Bardong

Binder

Toskov³

et al. 2016

J. Sens. Sens. Syst.

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“…Besides crystal growth, J. Bohm et al reported some properties of LGT, LGS and LGN, such as electric conductivity, optical activity, piezoelectric and elastic properties [7,8]. In 2002, J. Stade et al reported electro-optic, piezoelectric and dielectric properties of LGT, LGS and LGN [9], and D. C. Malocha et al measured the LGT thermal coefficients of expansion and density [10]. Until now, LGT crystal has been mainly researched as a piezoelectric material as Ref.…”

Section: Introductionmentioning

confidence: 96%

Growth and characterization of La₃Ga_5.5Ta_0.5O₁₄ crystal

Kong¹,

Wang

Zhang

et al. 2004

Cryst. Res. Technol.

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La 3 Ga 5.5 Ta 0.5 O 14 (LGT) crystal was grown by using the Czochralski method. The as-grown crystal is transparent, free from inclusions and with no cracks. Specific heat, thermal expansion, dielectric constants, transmission spectrum and optical damage threshold of LGT have been measured, and the results show general properties of LGT are similar to that of La 3 Ga 5 SiO 14 (LGS) crystal. The experiment to research the Qswitch properties of LGT has been performed and the results show LGT possesses smaller electrooptic coefficients than that of LGS and may not be an ideal material used as a Q-switch.

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“…The temperature dependence of the crystalline lattice parameters are usually studied using X-ray powder diffraction methods [6][7][8]. Each of the many peaks in the large angle X-ray diffraction pattern is caused by a different oriented crystal grain of the polycrystalline powder sample.…”

Section: Resultsmentioning

confidence: 99%

Temperature dependence of lattice parameters of langasite single crystals

Kräußlich¹,

Höfer

Zastrau

et al. 2010

Cryst. Res. Technol.

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To determine the coefficient of thermal expansion of trigonal langasite (La 3 Ga 5 SiO 14 ) the two independent lattice parameters a and c are measured over a temperature range of 800 °C using X-ray diffraction on single crystal samples. From the given nonlinear temperature dependence the linear and quadratic thermal coefficients of expansion α 11 , β 11 and α 33 , β 33 for the two lattice parameters a and c could be deduced.

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Measurements of LGS, LGN, and LGT thermal coefficients of expansion and density

Cited by 21 publications

References 3 publications

Investigation of low-temperature cofired ceramics packages for high-temperature SAW sensors

Investigation of low-temperature cofired ceramics packages for high-temperature SAW sensors

Growth and characterization of La₃Ga_5.5Ta_0.5O₁₄ crystal

Temperature dependence of lattice parameters of langasite single crystals

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Measurements of LGS, LGN, and LGT thermal coefficients of expansion and density

Cited by 21 publications

References 3 publications

Investigation of low-temperature cofired ceramics packages for high-temperature SAW sensors

Investigation of low-temperature cofired ceramics packages for high-temperature SAW sensors

Growth and characterization of La3Ga5.5Ta0.5O14 crystal

Temperature dependence of lattice parameters of langasite single crystals

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Product

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Growth and characterization of La₃Ga_5.5Ta_0.5O₁₄ crystal