Method for in-situ generation of diamond-like film precursor

A diamond-like film, in situ generation technology, applied in electrolytic organic production, metal material coating process, gaseous chemical plating, etc., can solve the problem of increasing the complexity of experimental equipment

Inactive Publication Date: 2021-06-08
SHENYANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the chemical properties of metal Ca are relatively active, and the process of adding raw materials needs to be completed in a glove box, which increases the complexity of the experimental equipment.

Method used

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  • Method for in-situ generation of diamond-like film precursor
  • Method for in-situ generation of diamond-like film precursor
  • Method for in-situ generation of diamond-like film precursor

Examples

Experimental program
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Effect test

Embodiment 1

[0024] This example provides a method for in-situ generation of a carbon precursor and its subsequent use to prepare a diamond-like film, and the Raman spectrum of the sample is obtained as figure 1 shown. Substrate is a nickel base material in the present embodiment, and specific implementation steps are as follows:

[0025] (1) Weigh LiCl:KCl:CaCl 2 Molar ratio is the molten salt of 38.5:8.5:53, is placed in graphite crucible, in muffle furnace, 300 DEG C of drying more than 48 h removes the adsorption water in molten salt;

[0026] (2) Under the protective atmosphere of high-purity argon, heat the molten salt to 550 °C; after the temperature is stable, perform electrolysis;

[0027] (3) Cut to a certain length Φ 2 mm Ni wire, wound into a helical shape with a length of about 5 cm and a diameter of about 1 cm, which is used as a counter electrode;

[0028] (4) In LiCl-KCl-CaCl 2 In the system, the working electrode is a graphite crucible, the counter electrode is a hel...

Embodiment 2

[0032] This example provides a method for in-situ generation of a carbon precursor and its subsequent use to prepare a diamond-like film to obtain a Raman spectrum of the sample such as figure 2 shown. Substrate is a nickel base material in the present embodiment, and specific implementation steps are as follows:

[0033] (1) Weigh LiCl:KCl:CaCl 2 Molar ratio is the molten salt of 38.5:8.5:53, is placed in graphite crucible, in muffle furnace, 300 DEG C of drying more than 48 h removes the adsorption water in molten salt;

[0034] (2) Under the protective atmosphere of high-purity argon, heat the molten salt to 550 °C; after the temperature is stable, perform electrolysis;

[0035] (3) Cut to a certain length Φ 2 mm Ni wire, wound into a helical shape with a length of about 5 cm and a diameter of about 1 cm, which is used as a counter electrode;

[0036] (4) In LiCl-KCl-CaCl 2 In the system, the working electrode is a graphite crucible, the counter electrode is a helica...

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Abstract

The invention discloses a method for in-situ generation of a diamond-like film precursor, and relates to the technical field of coating. According to the method, through a molten salt medium electrolyzing method, acetylene compounds are generated in an electrolytic tank by the chemical reaction to serve as precursors of carbon, and personal injury and environmental harm caused by use of industrial acetylene compounds are avoided. The provided preparation method for in-situ generation of the diamond-like film precursor is simple and feasible, and the concentration of the prepared acetylene compounds is relatively high.

Description

technical field [0001] The invention relates to the field of coating technology, in particular to a method for in-situ generation of a diamond-like film precursor. Background technique [0002] Carbon films mainly include diamond films, graphite films and amorphous carbon films. Among them, the amorphous carbon film can be divided into two types according to the different hybridization methods of carbon atoms 3 Diamond-like carbon film with more bonds and sp 2 Graphite-like film with more bonds. Due to its high hardness, wear resistance, low friction coefficient, high light transmittance and excellent field emission properties, diamond-like carbon films have broad application prospects in the fields of machinery, electronics, optics and biomedicine. [0003] Molten salt electrochemical technique is a very promising method to prepare diamond-like films. The molten salt as a reaction medium can anneal the film to a certain extent, which is beneficial to reduce defects and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C16/448C25B3/03C23C16/26
CPCC23C16/4488C25B3/00C23C16/26
Inventor 陈莹
Owner SHENYANG UNIV
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