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首页> 外文期刊>Journal of Crystal Growth >Growth and characterization of tetramethyl ammonium tetrachloro zincate II: A ferroic crystal
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Growth and characterization of tetramethyl ammonium tetrachloro zincate II: A ferroic crystal

机译:四氯锌酸四甲基铵的生长与表征II:铁酸盐晶体

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摘要

Ferroic crystals of tetramethyl ammonium tetrachlorozincate (TMA-ZnCl) were grown by slow evaporation technique and the morphology of the grown crystals varies with different pH values. The compound crystallizes in orthorhombic primitive system at room temperature with non-centro symmetric space group Pmna. The grown crystals were subjected to powder X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, ultraviolet-visible-near-infrared (UV-vis-NIR) spectral studies and thermal studies. Differential scanning calorimetry (DSC) measurement confirms the existence of structural phase transition and the thermogravimetric analysis (TGA) studies reveals that the crystal is thermally stable up to 330 ℃. Vicker's microhardness studies expose that the material is mechanically stable up to a load of 60 g. The laser second harmonic generation (SHG) efficiency of the grown crystal was found to be 1.3 times that of potassium dihydrogen orthophosphate (KDP) crystal.
机译:通过缓慢蒸发技术生长了四氯锌酸四甲基铵(TMA-ZnCl)的铁酸盐晶体,并且该晶体的形态随pH值的变化而变化。该化合物在室温下以正交中心空间群Pmna在正交晶系中结晶。将生长的晶体进行粉末X射线衍射(XRD),傅立叶变换红外(FTIR)光谱,紫外可见近红外(UV-vis-NIR)光谱研究和热学研究。差示扫描量热法(DSC)测量证实了结构相变的存在,热重分析(TGA)研究表明该晶体在高达330℃的温度下具有热稳定性。维氏的显微硬度研究表明,该材料在60 g的载荷下仍具有机械稳定性。发现生长晶体的激光二次谐波(SHG)效率是正磷酸二氢钾(KDP)晶体的1.3倍。

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