期刊论文

Controllable Synthesis and Polishing Properties of Ceria Behavior of Ceria Nanoparticles

中文

山东化工

1008-021X

2020

49

2

30-32

10.19319/j.cnki.issn.1008-021x.2020.02.010

湖南省研究生科研创新项目(项目编号:CX20190732)。

本校为第一机构

本文采用水热法制备了具有特定形貌的纳米氧化铈,并对其微观结构进行了表征,同时对其抛光性能进行研究,实验结果表明:利用水热法可控合成的八面体及方块纳米氧化铈,晶粒度均匀,结晶性良好;八面体状纳米氧化铈暴露面为{111},方块状纳米氧化铈暴露面为{001};抛光效率和质量与其形貌有很大关系,棱角可以增加抛光速率,摩擦磨损机理为颗粒磨损,犁削效应比较明显。纳米氧化铈和单晶硅片的接触应力与接触形式有关,为点接触时,接触应力最大;为面接触时,接触应力最小。

The nanoparticles with specific morphologies are synthesized via a facile yet efficient hydrothermal process.The microstructure and polishing properties of the harvested nanomaterials have also been investigated.The nano-octahedrons and nano-cubes with uniform size and high crystallinity are controllable synthesized by hydrothermal process.The nano-octahedrons exposed with eight{111}planes and nano-cube with six{001}planes.Those nanoparticles have shape corners and well-defined edges are found to show markedly enhanced material removal capacity.Wear mechanism of the nano-octahedron with sharp ...