La_3Ga_5SiO-(14)单晶电弹常数的测量  

Determination of the Electro-elastic Constants of La_3Ga_5SiO_(14) Single Crystal

作　　者：尹鑫[1] 王继扬[1] 胡少勤[2] 蒋春健[2] 

机构地区：[1]山东大学晶体材料研究所晶体材料国家重点实验室,济南250100 [2]四川压电与声光技术研究所,重庆400060

出　　处：《压电与声光》2003年第1期75-77,共3页Piezoelectrics & Acoustooptics

摘　　要：用LCR电桥、干涉法和谐振法分别测量了La3Ga5SiO14单晶的相对介电常数,压电应变常数和弹性柔顺常数。结果为:介电常数ε11=18.27,ε33=52.26;压电应变常数d11=6.3pC/N,d14=-5.4pC/N;弹性柔顺常数sE11=9.28pm2/N,sE33=6.14pm2/N,sE12=-2.72pm2/N,sE13=-2.33pm2/N,sE14=-3.48pm2/N,sE44=20.56pm2/N,sE66=24.0pm2/N。In thispaper,the relative dielectric constants,the piezoelectric strain constants and elastic compliance constants of La3Ga5SiO14 single crystal have been determined by the LCR bridge,interferometric method and resonant method,respectivelyThe resultants obtained are:the relative constants ε11=1827,ε33=5226;the piezoelectric strain constants d11=63 pC/N,d14=-54 pC/N;the elastic compliance constants sE11=928 pm2/N,sE33=614 pm2/N,sE12=-272 pm2/N,sE13=-233 pm2/N,sE14=-348 pm2/N,sE44=2056 pm2/N,sE66=240 pm2/N.

关 键 词：La3Ga5SiO14单晶 介电常数 压电应变常数 弹性柔顺常数 

分 类 号：TN304[电子电信—物理电子学] O48[理学—固体物理]