Method for preparing TiO2 coating on surface of iron-based amorphous ribbon through sol-gel method

A sol-gel method, iron-based amorphous technology, applied in metal material coating process, coating, solid-state chemical plating, etc., can solve the problems of low high-frequency characteristics, influence on appearance and performance, and low free surface activity. , to achieve uniform particle size distribution, strong UV resistance, and excellent transparency.

Inactive Publication Date: 2011-12-07
NANCHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the free surface activity of this material is not high, the high-frequency characteristics are relatively low, and its main component is iron, which is easy to rust in a humid environment and affect its appearance and performance

Method used

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  • Method for preparing TiO2 coating on surface of iron-based amorphous ribbon through sol-gel method
  • Method for preparing TiO2 coating on surface of iron-based amorphous ribbon through sol-gel method
  • Method for preparing TiO2 coating on surface of iron-based amorphous ribbon through sol-gel method

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Effect test

Embodiment 1

[0012] Fe 73.5 Cu 1 Nb 3 Si 13.5 B 9 Iron-based amorphous and nanocrystalline strips 0.5~5mm wide, 20~30 mu m thick, after being degreased by a degreasing solution at 80-90°C, it is pulled in a sol at 80°C for 5 times, dried in an oven at 55°C, and then annealed at 300°C for 60 minutes. A layer of transparent film mainly composed of titanium dioxide is obtained on the surface of the strip.

Embodiment 2

[0014] Fe 73.5 Cu 1 Nb 3 Si 13.5 B 9 Iron-based amorphous nanocrystalline strip 5~10mm wide, 20~30 mu m thick, after being degreased by a degreasing solution at 80-90°C, it is pulled in a sol at 80°C for 5 times, dried in an oven at 55°C, and then annealed at 300°C for 60 minutes. A layer of transparent film mainly composed of titanium dioxide is obtained on the surface of the strip.

Embodiment 3

[0016] Fe 73.5 Cu 1 Nb 3 Si 13.5 B 9 Iron-based amorphous and nanocrystalline strips 10~50mm wide, 20~30mm mu m thick, after being degreased by a degreasing solution at 80-90°C, it is pulled in a sol at 80°C for 5 times, dried in an oven at 55°C, and then annealed at 300°C for 60 minutes. A layer of transparent film mainly composed of titanium dioxide is obtained on the surface of the strip.

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Abstract

The invention provides a method for preparing a TiO2 coating on the surface of an iron-based amorphous ribbon through a sol-gel method. The preparation process steps of the TiO2 coating are as follows: (1) selecting raw materials; and (2) preparing the coating: 1) using NaOH, Na2CO3, Na3PO4.12 H2O and Na2SiO3 as the solute and deionized water as the solvent to prepare solution; 2) placing the iron-based amorphous ribbon in the oil-removing solution prepared in the step 1); 3) soaking the iron-based amorphous ribbon obtained in the step 2) in a 80-95 DEG C of water bath to perform ultrasonic treatment for 10-15 minutes; and 4) cleaning the iron-based amorphous ribbon with distilled water. The invention has the following advantages: (1) the reaction process is easy to control, side reactions are fewer, the process operations are simple; and (2) titanium dioxide is characterized by good weather resistance, chemical resistance and ultraviolet resistance, excellent transparency, uniform size distribution and the like, thus the comprehensive performance of the surface of the iron-based amorphous ribbon can be increased.

Description

technical field [0001] The invention relates to a method for preparing TiO 2 Coating method, especially relates to a sol-gel method to prepare TiO on the surface of iron-based amorphous strip 2 Coating method. Background technique [0002] With the increasing tension of energy sources and the deterioration of the global environment, low-carbon energy saving has become one of the most concerned topics in the world. In power electronic systems, the research on green, energy-saving and environment-friendly soft magnetic materials has become a hot spot. Iron-based amorphous alloy strips currently under development (Fe 78 Si 9 B 13 ), iron-based amorphous nanocrystalline alloy strips (Fe 73.5 Cu 1 Nb 3 Si 13.5 B 9 ) has become the most promising soft magnetic alloy material in power system applications because of its low loss, high magnetic permeability, and high saturation magnetic induction (Bs). Among them, the iron-based alloy composition is Fe 78 Si 9 B 13 , Fe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C20/08C22C45/02
Inventor 朱正吼尹镭
Owner NANCHANG UNIV
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