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首页> 外文期刊>Crystal growth & design >Equilibrium Shape of 2D Nuclei Obtained from Spiral Hillocks on {010} Form of Gypsum
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Equilibrium Shape of 2D Nuclei Obtained from Spiral Hillocks on {010} Form of Gypsum

机译：从{010}形式的螺旋小丘获得的2D核的平衡形状

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摘要

Growth patterns on the {010} form of gypsum crystals were investigated, under controlled temperature and supersaturation, by atomic force microscope. With the morphology of hillocks formed by growth spirals generated by screw dislocations, the two-dimensional (2D) equilibrium morphology on the {010} form of gypsum was calculated. Edge energies of the [001], [102], [101], [201], and [100] steps were obtained by measuring the spacing between hillocks steps running in the same direction. Their values range between 8 x 10 and 2.3 x 10(-6) erg/cm. The calculated critical size of 2D nucleus on {010} form is quite large (similar to 3400 nm(2)) and witnesses the low supersaturation value at which experiments were done.
机译：通过原子力显微镜，在受控温度和过饱和下研究了石膏晶体的{010}形式的生长模式。 随着通过螺旋脱位产生的生长螺旋形成的小丘形态，计算了{010}形式的石膏形式的二维（2D）平衡形态。 通过测量在相同方向上运行的小丘步骤之间的间距，获得了[001]，[102]，[101]，[201]和[100]步骤的边缘能量。 它们的值范围在8×10和2.3 x 10（-6）erg / cm之间。 在{010}形式上的2D核的计算临界尺寸非常大（类似于3400nm（2）），并证明了所需实验的低过饱和值。

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