摘要：用微观结晶理论解释提高水热温度时出现的纳米AlOOH形貌"逆转"现象,指出升高温度对纳米AlOOH晶体生长速率所具有的"双重"作用;分析温度的改变所引起的体系能量起伏,探讨温度变化直接引起生长基元变化,从而改变成核的机制,最终导致晶体形貌的改变的实质。结果表明:温度的提高激发新的晶核形成,诱导新的生长基元出现,改变原来的界面生长模型,从而彻底改变了晶体生长机制。

关键词： 水热法；纳米晶体；成核机理；界面模型

Abstract： In order to explain the phenomenon of morphotropic reversion of AlOOH nano-crystalline appeared during the hydrothermal process，the micro-crystalline theory was used to research the effect of hydrothermal temperature on morphology. It was pointed out that the increasing temperature profound a dual role in growth rate of AlOOH nano-crystalline. The energy fluctuations of the system caused by temperature was analyzed, and the substance that the change of temperature caused the different of growth primitive of crystal and nucleation mechanism and then led to the change of morphology of AlOOH nano-crystalline was discussed. The results showed that the increasing temperature activated the information of new nucleates and induced the new growth primitive of crystal and changed the model of interface growth of crystal and then transferred the growth mechanism of crystals thoroughly. 

Keywords： hydrothermal； nano-crystalline； nucleation mechanism； interfacemodel