Siccas LGS Crystal



  Basic Information


Chemical formula:

La3Ga5SiO14

Density:

ρ :
5.75
g/cm3


Curie temperature:



Material class:

Langasite

Point group:
32

Reviewed:

Yes


Tmax:
900
°C


Description:

Langastie crystal (La3Ga5SiO14, LGS), belonging to the space group P321, point group 32, has been reported to be promising new piezoelectric materials for fabrication of surface acoustic wave (SAW) and bulk acoustic wave (BAW) devices. It is reported that devices made of langasite crystal could be used at a high temperature up to 900°C because of its high thermal stability. Langasite crystal possesses some great properties, such as higher electromechanical coupling factor than quartz, no phase transition from room temperature to melt point.

   Electric Properties



d11:
5.66
*10-12 C/N

d14:
-5.48
*10-12 C/N




   Elastic Properties



C33E:
26.3
*1010 N/m2

C44E:
5.4
*1010 N/m2



Qm:
50000


Availability


SICCAS High Technology Corp.
http://www.siccas.com/
[email protected]



Applications