Dielectric, thermal, and mechanical properties of the semiorganic nonlinear optical crystal sodium p-nitrophenolate dihydrate
Dielectric, thermal, and mechanical properties of the semiorganic nonlinear optical crystal sodium p-nitrophenolate dihydrate
复制标题
半有机非线性光学晶体对硝基苯酚钠二水合物的介电、热和机械性能
DOI：
10.1063/1.1319651
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发表时间：
2000
影响因子：
3.2
通讯作者：
P. Goyal
中科院分区：
文献类型：
--
作者：
S. Brahadeeswaran;H. Bhat;N. Kini;A. Umarji;P. Balaya;P. Goyal
测量了对硝基苯酚钠二水合物单晶的介电、比热、热膨胀和机械硬度等物理性能。电介质测量作为频率（在15 kHz-10 MHz范围内）和温度（在30-80°C范围内）的函数进行。在室温下，e11的测量频率范围在4.03 ~ 3.69之间，e22的测量频率范围在8.11 ~ 7.05之间，e33的测量频率范围在5.71 ~ 5.36之间，并且在某些频率下观察到压电谐振。作为温度函数的介电测量在测量的温度范围内没有表现出任何异常。对该化合物进行的比热研究表明，在测量范围内，Cp随温度的升高而增加约30%。在30 ~ 80℃范围内，热膨胀随温度的变化呈线性，平均热膨胀系数为α1=7.48×10−5 K−1,α2=4.30×10−6 K−1,α3=1.99×…
Physical properties such as dielectric, specific heat, thermal expansion, and mechanical hardness have been measured for sodium p-nitrophenolate dihydrate single crystals. The dielectric measurements were made both as a function of frequency (in the range 15 kHz–10 MHz) and temperature (in the range 30–80 °C). For the range of frequencies measured the values were found to vary between 4.03 and 3.69 for e11, 8.11 and 7.05 for e22, and 5.71 and 5.36 for e33 at room temperature, and piezoelectric resonances were observed at certain frequencies. The dielectric measurements made as a function of temperature did not exhibit any anomaly in the temperature range measured. The specific heat studies carried out for this compound showed ≈30% increase in Cp with the temperature in the measured range. The thermal expansion measured as a function of temperature in the range 30–80 °C exhibited linear behavior and the average thermal expansion coefficients were found to be α1=7.48×10−5 K−1, α2=4.30×10−6 K−1, and α3=1.99×...