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Carbon fiber with C-Si-Al coating on surface for gradient sintering protection of precursor as well as preparation method and application thereof

A c-si-al, carbon fiber technology, applied in coating, metal material coating process, ion implantation plating, etc., to achieve the effect of simple and easy-to-control preparation process, low substrate temperature, and guaranteed mechanical properties

Active Publication Date: 2019-01-08
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chemical vapor deposition and plasma spraying may cause CF oxidation damage due to high temperature preparation. The uniformity of the sol-gel coating and the bonding strength of the coating substrate need to be further improved. The coating prepared by physical vapor deposition is dense and uniform, but it is difficult to directly apply it Continuing to build a bioactive coating outside the layer to alleviate the thermal expansion coefficient mismatch and have good interfacial bonding

Method used

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  • Carbon fiber with C-Si-Al coating on surface for gradient sintering protection of precursor as well as preparation method and application thereof
  • Carbon fiber with C-Si-Al coating on surface for gradient sintering protection of precursor as well as preparation method and application thereof
  • Carbon fiber with C-Si-Al coating on surface for gradient sintering protection of precursor as well as preparation method and application thereof

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Effect test

preparation example Construction

[0044] A kind of preparation method that the surface has the carbon fiber of precursor gradient sintering protection C-Si-Al coating, comprises the following steps:

[0045] Step 1, CF cleaning to remove the glue on the surface of CF: In a digitally controlled ultrasonic cleaner, clean CF with pure water, absolute ethanol, acetone and distilled water at room temperature in sequence. During the cleaning process, the ultrasonic frequency is set to 60.0kHz, the power is set to 80.0W, and the ultrasonic cleaning time is 30.0min;

[0046] Step 2, mixed acid modification treatment: completely immerse the cleaned CF in nitric acid (HNO 3 ), hydrochloric acid (HCl) and sulfuric acid (H 2 SO 4 ) in a mixed acid solution composed of a certain proportion, after ultrasonic treatment at room temperature for 2 hours, take it out and wash it with distilled water, set the ultrasonic frequency and power to 60.0KHz and 80.0W respectively, to obtain mixed acid modified CF;

[0047] Step 3, al...

Embodiment 1

[0064] A kind of preparation method that the surface has the carbon fiber of precursor gradient sintering protection C-Si-Al coating, comprises the following steps:

[0065] Step 1, CF cleaning: In a digitally controlled ultrasonic cleaner, clean a certain quality of CF with pure water, absolute ethanol, acetone and distilled water at room temperature. During the cleaning process, the ultrasonic frequency is set to 60.0kHz, the power is set to 80.0W, and the ultrasonic cleaning time is 30.0min;

[0066] Step 2, mixed acid modification treatment: the CF after ultrasonic cleaning in step 1 was completely immersed in nitric acid (HNO 3 ), hydrochloric acid (HCl) and sulfuric acid (H 2 SO 4 ) in a mixed acid solution with a ratio of 1:1:1, after ultrasonic treatment at room temperature for 2 hours, take it out and wash it with distilled water, and the ultrasonic frequency and power are set to 60.0KHz and 80.0W, respectively.

[0067] Step 3, alkali treatment: The mixed acid-mod...

Embodiment 2

[0078] A kind of preparation method that the surface has the carbon fiber of precursor gradient sintering protection C-Si-Al coating, comprises the following steps:

[0079]Step 1, CF cleaning: In a digitally controlled ultrasonic cleaner, clean a certain quality of CF with pure water, absolute ethanol, acetone and distilled water at room temperature. During the cleaning process, the ultrasonic frequency is set to 60.0kHz, the power is set to 80.0W, and the ultrasonic cleaning time is 30.0min;

[0080] Step 2, mixed acid modification treatment: the CF after ultrasonic cleaning in step (1) was completely immersed in nitric acid (HNO 3 ), hydrochloric acid (HCl) and sulfuric acid (H 2 SO 4 ) in a mixed acid solution with a ratio of 1:1:1, after ultrasonic treatment at room temperature for 2 hours, take it out and wash it with distilled water, and the ultrasonic frequency and power are set to 60.0KHz and 80.0W, respectively.

[0081] Step 3, alkali treatment: completely immers...

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Abstract

The invention discloses a carbon fiber with a C-Si-Al coating on the surface for gradient sintering protection of a precursor as well as a preparation method and application thereof. The C-Si-Al coating for gradient sintering protection of the precursor is designed and constructed on the surface of the carbon fiber (CF) with certain thickness and morphology by adopting the magnetron sputtering method; the C layer serves as the innermost layer to protect the CF and reduce the damage to the CF during the sputtering process; the Si layer serves as a transition layer to play the action of blockingand prevent the CF and the Al layer from being in contact reaction to form the brittle phase of Al4C3; the Al layer serves as a precursor coating for subsequent anodic oxidation of nanoporous Al2O3;and the gradient C-Si-Al coating is enabled to be dense and homogeneous in structure by heat treatment after sputtering. The C-Si-Al coating prepared by the invention has high strength in bonding withthe CF substrate and good stability in long-term implantation, and can prevent the coating from falling off and getting failed, thereby laying a certain research foundation for the application of C-Si-Al / CF in clinic.

Description

technical field [0001] The invention belongs to the technical field of preparation of gradient coatings on the surface of carbon materials, in particular to a carbon fiber with a precursor gradient sintering protection C-Si-Al coating on the surface, a preparation method and application thereof. Background technique [0002] Hydroxyapatite (Ca 10 (PO 4 ) 6 (OH) 2 , HA) Bioceramic is the main inorganic component of human hard tissue, with excellent biocompatibility and bioactivity, it can induce bone tissue to grow on its surface in a short time after implanted in the human body, and form a good chemical bond with bone tissue It is a kind of biomaterial with great utilization potential. At present, HA has been widely used in the preparation of artificial bone implants and bioactive coatings on the surface of implants, and has become one of the hot research directions in the field of biomaterials. However, the pure HA ceramic material is brittle and low in strength, and i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/35C23C14/06C23C14/18C23C14/58
CPCC23C14/0605C23C14/185C23C14/352C23C14/5806
Inventor 赵雪妮张伟刚王瑶刘庆瑶郑佳梅张黎杨建军何富珍
Owner SHAANXI UNIV OF SCI & TECH
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