摘要
测量了同成分和掺镁铌酸锂晶体的热膨胀率和热膨胀系数。讨论了实验结果,并用最小二乘法对热膨胀率和热膨胀系数与温度的关系进行了多项式拟合。
Thermal expasion rastio (TER)(△L/L298×100%) and thermal expasion coefficient (TEC) ( α ×10-6ppmc-1) of congruent and magnesium doped lithium niobate crystals were measured. The results were discussed, and the temperature depedences of TER and TEC were fitted through a least square method.
出处
《压电与声光》
CSCD
北大核心
1991年第6期35-38,共4页
Piezoelectrics & Acoustooptics
基金
国家自然科学基金资助课题
关键词
铌酸锂
晶体
热膨胀
系数
lithium niobate crystal, thermal expasion, data fitting
