To improve the stability of α-Fe_2O_3 in high temperature application, the SiO_2 and Al_2O_3-coated α-Fe_2O_3 composite particles were prepared from α-Fe_2O_3 coated uniformly with Si(OH)_4 and Al(OH)_3 by heterogeneous nucleation process.
为解决氧化铁红在高温下呈现不稳定性的问题,采用非均匀成核法使Si(OH)4和Al(OH)3均匀包覆在氧化铁红粉末颗粒表面,用X射线衍射仪、透射电镜、Zeta电位测定仪对包覆前后的Fe2O3粉末颗粒进行分析。
Its hydrolysate ——aluminum hydroxide is coatedon the surface of flaky graphite to improve the wetting property by heterogeneous nucleation process.
本文用异丙醇铝作前驱物,通过非均匀成核法使鳞片石墨表面包覆氢氧化铝,石墨表面由疏水性变为亲水性。
Nano-SiC particles were coated with Al(OH) 3 by heterogeneous nucleation process using a buffered pH solution as the precipitating reagent.
ｐＨ值缓冲溶液作为沉淀剂，利用非均匀成核法在纳米ＳｉＣ微粒表面均匀涂覆一层Ａｌ（ＯＨ）３。