本文選題：納米氧化鋯 + 晶粒生長(zhǎng)�。� 參考：《稀有金屬材料與工程》2017年04期

【摘要】：對(duì)水熱法制備的納米氧化鋯在不同溫度和保溫時(shí)間條件下進(jìn)行了煅燒,采用X射線衍射結(jié)合全譜模型方法分析了晶粒尺寸和晶粒尺寸分布的變化。結(jié)果表明,當(dāng)煅燒溫度在300℃時(shí),納米氧化鋯晶粒開(kāi)始生長(zhǎng)并伴隨著晶粒尺寸分布寬化。納米氧化鋯的晶粒生長(zhǎng)速率及晶粒尺寸分布與煅燒溫度和保溫時(shí)間有關(guān)。根據(jù)分析結(jié)果,計(jì)算了晶粒生長(zhǎng)指數(shù)和晶粒生長(zhǎng)活化能。討論了晶粒生長(zhǎng)機(jī)理,晶粒旋轉(zhuǎn)合并是納米氧化鋯晶粒生長(zhǎng)的主要方式。
[Abstract]:Nanocrystalline zirconia prepared by hydrothermal method was calcined at different temperature and holding time. The changes of grain size and grain size distribution were analyzed by X-ray diffraction and full-spectrum model.The results show that nanocrystalline zirconia grains begin to grow and the grain size distribution broadens when calcining temperature is 300 鈩，

本文編號(hào)：1764588