本文選題：氟金云母　切入點(diǎn)：溶膠凝膠　出處：《河南科技大學(xué)學(xué)報(bào)(自然科學(xué)版)》2017年05期 　論文類型：期刊論文

【摘要】：以Mg(NO_3)_2·6H_2O、Al(NO_3)_3·9H_2O、NH_4F、NaF、CO(NH_2)_2和硅溶膠為原料,采用溶膠凝膠法制備氟金云母(NaMg_3AlSi_3O_(10)F_2)。借助X射線衍射(XRD)、同步熱分析(DTA/TG)、場發(fā)射掃描電鏡(FESEM)和透射電鏡(TEM)等檢測手段,研究了熱處理溫度等因素對(duì)氟金云母粉體晶相組成和晶體生長情況的影響。研究結(jié)果表明:合成粉體的物相具備典型的玻璃陶瓷材料特征,粉體直徑約為30 nm。晶化熱處理后粉體晶態(tài)比例顯著提高,呈現(xiàn)尺寸較大的片狀形貌。氟金云母晶相在500℃開始明顯析出,隨著晶化溫度的適當(dāng)提高,氟金云母的晶化速度顯著提高,雜相也明顯減少。
[Abstract]:Based on Mg(NO_3)_2 路6H _ 2O-AlNO3C _ 3 路9H _ 2O _ _ _-_ _ _. The effects of heat treatment temperature on the crystal phase composition and crystal growth of fluorophlogopite powder were studied. The diameter of the powder is about 30 nm. After the crystallization heat treatment, the proportion of crystal state of the powder increases significantly, showing a large size flake shape. The crystal phase of fluorophlogopite begins to precipitate obviously at 500 鈩，

本文編號(hào)：1562980