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The surface micro-morphology transition of pearls induced by cerium

机译：铈诱导珍珠的表面微观形态转变

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The surface microstructure transition of pearl induced by rare earth element (REE) cerium (Ce) was investigated in micrometer scale range by means of scanning electronic microscopy (SEM). We found that pearls cultured in the control group (no REE Ce added) relatively grow slowly when there is in the culturing water, but the pearls grow quickly when REE Ce was added in the culturing water. At the same time, the former pearls were built up by aragonite blocks with spindly shape, but the latter pearls sampled in the REE test group are made of aragonite blocks with regular hexagonal shape. Moreover, the luster of the pearls free of REE Ce is relatively low because their surface were mainly build up by spindly aragonite blocks. On the contrary, the pearls with REE Ce have high luster since their surface were chiefly composed of regular hexagonal aragonite blocks that is the most idea blocks in crystallography. The results show that a quantity of Ce will promote the development and growth of pearls, and enhanced the lustrous of pearls significantly. Finally, we discussed the relevant of surface microstructure and lustrous of pearls to the concentration of REE in culture water by analyzing the influence of additive REE Ce on the surface microstructure.
机译：通过扫描电子显微镜（SEM）在微米刻度范围内研究由稀土元素（REE）铈（CE）诱导的珍珠丸的表面微观结构转变。我们发现当培养水中时，在对照组（没有REE CE添加）中培养的珍珠相对缓慢地生长，但是当在培养水中加入REE CE时，珍珠迅速生长。与此同时，前者是由基板形状的制动块构建的，但后一种珍珠在REE测试组中采样的是具有常规六边形形状的金属石块。而且，没有REE CE的珍珠的光泽相对较低，因为它们的表面主要由Spindly Aragone块积聚。相反，与ree ce的珍珠具有高光泽，因为它们的表面主要由常规六边形化石块组成，这是晶体学中最多的主题块。结果表明，一定数量的CE将促进珍珠的发展和成长，并显着增强了珍珠的光泽。最后，我们通过分析添加剂REE Ce对表面微观结构的影响，讨论了珍珠表面微观结构和光泽的珍珠浓度。

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