中文摘要：

为了得到不同晶型的碳酸钙晶体，采用凝胶法生长出了碳酸钙的三种同质异象体：方解石、文石、球霰石．讨论了反应物浓度和杂质离子（Na^＋）对碳酸钙晶体生长的影响．结果表明：通过改变反应物浓度和利用不同的反应物可以生长出不同晶型的碳酸钙晶体．同时，利用原子力显微镜对生长的方解石晶体表面的形貌观察发现：晶体生长是以台阶簇（大台阶）的方式推进，不同高度的堆垛层错呈现在表面上．

英文摘要：

Three polymorphs of calcium carbonate （ calcite, aragonite and vaterite） were grown by gel method in the present paper. The effects of reactant concentration and inorganic impurity （Na^＋ ） on calcium carbonate crystals were studied. The results show that the different polymorphs can be obtained by altering growth conditions （such as reactant and reactant concentration）. Meanwhile, it is found that the crystal growth operates by the advance of step bouches （macrosteps） and the stacking faults are observed by using the Atomic Force Microscope.