Title :
Measurements of LGS, LGN, and LGT thermal coefficients of expansion and density
Author :
Malocha, Donald C. ; François-Saint-Cyr, Hugues ; Richardson, Kathleen ; Helmbold, Robert
Author_Institution :
Sch. of Electr. Eng. & Comput. Sci., Univ. of Central Florida, Orlando, FL, USA
fDate :
3/1/2002 12:00:00 AM
Abstract :
This paper will report on the measurements of the thermal coefficients of expansion and density of langasite (LGS), langanite (LGN), and langatate (LGT). The data were obtained by fabricating cubes with X, Y, and Z faces with nominal dimensions of 1 cm on a side for each material under test. The techniques used for measurement of density and thermal coefficients of expansion (TCE) of the materials are discussed. The data sets obtained and the extracted coefficients are presented.
Keywords :
density; lanthanum compounds; piezoelectric materials; thermal expansion; LGN; LGS; LGT; La/sub 3/Ga/sub 5.5/Nb/sub 0.5/O/sub 14/; La/sub 3/Ga/sub 5.5/Ta/sub 0.5/O/sub 14/; La/sub 3/Ga/sub 5/SiO/sub 14/; density; langanite; langasite; langatate; piezoelectric crystals; thermal coefficients of expansion; Acoustic devices; Acoustic materials; Acoustic measurements; Data mining; Density measurement; Dielectric materials; Dielectric measurements; Surface acoustic waves; Temperature distribution; Thermal expansion; Chemistry, Physical; Crystallography; Gallium; Heat; Lanthanum; Models, Chemical; Nitrogen Compounds; Oxygen Compounds; Sensitivity and Specificity; Silicon Compounds; Stress, Mechanical; Tantalum;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
