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Controlled degradation rate control method of magnesium-based biocomposite coatings

A composite coating, degradation rate technology, applied in the direction of coating, neural learning method, biological neural network model, etc., can solve the problems of poor controllability of biological composite coating degradation, reduce experimental exploration and facilitate industrialization Effect

Active Publication Date: 2017-01-11
ZHEJIANG UNIV OF TECH
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  • Abstract
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Problems solved by technology

[0006] The present invention overcomes the disadvantages of poor controllability of the degradation of biological composite coatings on the surface of magnesium-based materials in the prior art, and provides a method for controlling the controllable degradation rate of biological composite coatings on magnesium-based materials

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  • Controlled degradation rate control method of magnesium-based biocomposite coatings
  • Controlled degradation rate control method of magnesium-based biocomposite coatings
  • Controlled degradation rate control method of magnesium-based biocomposite coatings

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings.

[0032] The technical scheme adopted in the present invention is:

[0033] The controllable degradation rate control method of magnesium-based material biocomposite coating comprises the following steps:

[0034] (1) Micro-arc oxidation biocomposite coatings with controllable degradation were prepared on the surface of magnesium alloys by micro-arc oxidation and electrophoretic deposition;

[0035] (2) Preparation of micro-arc oxidation coating: select sodium silicate, sodium fluoride and sodium hydroxide as the main electrolyte components, and prepare micro-arc oxidation on the surface of magnesium alloy under the set micro-arc oxidation process parameters. coating;

[0036] (3) Preparation of micro-arc oxidation biological composite coating: the micro-arc oxidation coating sample is used as the sample to be treated by electrophoretic deposition, in the suspension wi...

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Abstract

The invention discloses a magnesium-based material biological composite coating controllable-degradation rate control method. The method realizes preparation of composite coatings having different degradation rates by change of micro-arc oxidation technological parameters, and realizes network training by the technological parameter and degradation rate respectively as an input layer and an output layer and by a BP artificial neural network optimized by a genetic algorithm thereby acquiring a prediction model having a small error.

Description

[0001] (1) Technical field [0002] The invention relates to a controllable prediction method for the degradation rate of a micro-arc oxidation biological composite coating, specifically realizing the predictability of the degradation rate of the coating by using a BP artificial neural network optimized by a genetic algorithm. [0003] (2) Background technology [0004] Since the 1990s, the focus of research on biomedical materials implanted in the body began to change from biostable materials to degradable materials. Degradable magnesium alloys have been hailed as a revolutionary metal biomaterial in Europe and the United States. Magnesium alloys have attractive application prospects as bioabsorbable orthopedic implant materials. However, bone implants typically remain strong enough to last 12 to 18 weeks in the body until the damaged tissue heals. Magnesium alloy implant materials will degrade rapidly in the corrosive medium containing chloride ions in the human body, making...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D11/30C25D13/00C25D21/12G06N3/12G06N3/08
Inventor 熊缨卢超
Owner ZHEJIANG UNIV OF TECH