Process for preparing rare earth nano-films by sol-gal method

Abstract

The invention is a preparing method of rare-earth nano film by sol-gel method. It preprocesses a monocrystalline silicon slice, soak the silicon slice in the royal water, heats the royal water by electric cooker, naturally cools at room temperature, takes out the silicon slice, repeatedly washes by deionized water, then places in dry vessel for drying; or preprocess the glass substrate slice by hydroxylation, processes by Priahan solution at room temperature, drip-washes by a large amount of deionized water and dries; dips the processed substrate slice in the prepared sol solution, placing still and then pulls, then places the substrate slice in the drier, puts in the oven for drying or repeats the above mentioned operations to prepare multilayer films; places the monocrystalline silicon slice or glass substrate slice covered with films into muffle for preserving heat, slowly raises the temperature to 500 deg.C, preserves heat and naturally cools to room temperature, and obtains the rare-earth nano film at once. It can reduce the friction coefficient from 0.5 without any film to 0.2, and has completely friction reducing action.

Description

technical field [0001] The invention relates to a preparation method of a nano film, in particular to a preparation method of a sol-gel method rare earth nano film, and belongs to the field of film preparation. Background technique [0002] The sol-gel method has the advantages of simple equipment, low cost, and can realize large-area special-shaped coating films. Especially through the chemical approach of the liquid phase, it is convenient to accurately control the material components to achieve the designed chemical ratio in the early stage of material preparation, and realize the material composition. The uniformity of the material reaches the nanometer level, or even the molecular level. Through the liquid phase process, the multi-component materials and composite materials that cannot be achieved by other processes are realized. Starting from the microstructure of the material, such as grafting, embedding, and fine compounding, the tailoring of material characteristics ...

AI Technical Summary

Problems solved by technology

However, this method does not involve the use of rare earth elements to improve the quality of the film and improve the friction performance of the film.