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利用Y切和(yxl)30°切两种样品测量了Ca3NbGa3Si2O14晶体的介电、压 电和部分弹性参数.计算了(yxl)θ切型相关压电常数随切角的变化.与La3Ga5SiO14晶体相比，Ca3NbGa3Si2O14晶体具有更优良的压电性能，其压电常数 d11=7.93×10-12C/N，d14=-5.88×10-12C/N.
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关键词:
- Ca3NbGa3Si2O14晶体/
- 介电常数/
- 压电常数
The dielectric, piezoelectric and some elastic constants of the Ca3NbGa3Si2O14 crystal had been determined by using Ycut and (yxl)30°cut crystal samples.The calculated piezoelectric constants as functions of cut a ngle of (yxl)θ cut were also given. The Ca3NbGa3Si2O14 crystal showed superior piezoelectric properties with relatively large piezoelectric constants (d11=7.93×10-12C/N，d14=-5.88×10-12 C/N) compared with La3Ga5SiO14 crystal.
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