Low-temperature plasma modification of LiYF4 crystal surface

8th All-Russian Conference on Low Temperature Plasma in the Processes of Functional Coating Preparation

Luchkin, A.G.^1 ; Hakki, A.^1 ; Rahimov, N.F.^1 ; Sadikov, K.G.^1 ; Luchkin, G.S.^1

Kazan (Volga Region) Federal University, 18 Kremljovskaja str., Kazan

420008, Russia^1

关键词: Diffusion process;    Helium atmosphere;    Low temperature plasmas;    Material structure;    Materials surface modifications;    Morphology and mechanical properties;    Plasma chemical reactions;    Plasma technology;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/789/1/012074/pdf
DOI  :  10.1088/1742-6596/789/1/012074

来源: IOP

【 摘 要 】

Low-temperature plasma modification of LiYF4crystal surface in Helium atmosphere caused microhardness decreasing and increasing of roughness of crystal surface. The change of microhardness and morphology is a possible result of Fluorine outgoing from material structure due to heating of surface and plasma chemical reactions and ingoing of Oxygen. As a result of exchange and diffusion processes crystal surface structure become more crumbly, its morphology and mechanical properties change.