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纳米ZnO在高压下的性质与结构研究

DOI: 10.11858/gywlxb.2003.01.007, PP. 45-49

Keywords: 相转变,金刚石压砧,高压,纳米晶

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Abstract:

在金刚石压砧上测量了20nm的ZnO和体相粉末ZnO的电阻-压力关系。研究结果表明,20nm的ZnO在7.9GPa压力时出现了相变,而体相粉末ZnO在5GPa时有相变发生。虽然粒径小的相变压力大于粒径大的,但与以前关于体相粉末ZnO所报道的文献结果有所不同。文中对此作了解释,并对纳米ZnO在压力下的畴破裂进行了研究。

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