Carbon black and ceramic double-phase nanometer composite slurry for preparing metal-based micro-nano powder and preparation method thereof

A nano-composite, metal-based technology, applied in the direction of coating, etc., to achieve the effect of high absorption rate, uniform distribution and strong light absorption

Inactive Publication Date: 2014-08-27
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that there is no carbon black / ceramic dual-phase nanocomposite slurry and its preparation method for the preparation of carbon black / ceramic dual-phase nano-reinforced metal-based micro-nano powder, and to invent a metal-based Carbon black and ceramic dual-phase nanocomposite slurry for micro-nano powder preparation, and a corresponding preparation method is provided

Method used

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  • Carbon black and ceramic double-phase nanometer composite slurry for preparing metal-based micro-nano powder and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Materials used in the example: Commercially available ordinary bagged carbon black powder, with an average particle size of 18nm and a tinting strength of 135%, the amount of carbon black powder added accounts for 0.05% of the total mass of the slurry; commercially available ordinary bagged silicon carbide powder , with an average particle size of 30nm and a dark green color. The amount added accounts for 0.3% of the total mass of the slurry, and the rest is absolute ethanol.

[0025] First, the nano-carbon black powder is pretreated by dry ball milling to break the original large aggregate particles, and then mixed with absolute ethanol and stirred until a semi-finished carbon black slurry without obvious solid-liquid layering is obtained. The final semi-finished carbon black slurry is placed in an ultrasonic equipment for constant temperature ultrasonic dispersion. The constant temperature is controlled at 20±5°C, and the dispersion time is 30 to 60 minutes. A single-p...

Embodiment 2

[0027] Materials used in the example: commercially available ordinary bagged carbon black powder, the average particle size is 28nm, the coloring strength is 120%, and the amount of carbon black powder added accounts for 0.1% of the total mass of the slurry; commercially available ordinary bagged tungsten carbide The powder, with an average particle size of 10nm, is gray-black, and its added amount accounts for 0.5% of the total mass of the slurry, and the rest is absolute ethanol.

[0028] First, the nano-carbon black powder is pretreated by dry ball milling to break the original large aggregate particles, and then mixed with absolute ethanol and stirred until a semi-finished carbon black slurry without obvious solid-liquid layering is obtained. The final semi-finished carbon black slurry is placed in an ultrasonic equipment for constant temperature ultrasonic dispersion. The constant temperature is controlled at 20±5°C, and the dispersion time is 30 to 60 minutes. A single-ph...

Embodiment 3

[0030] Materials used in the example: Commercially available ordinary bagged carbon black powder, with an average particle size of 14nm and a tinting strength of 140%, the amount of carbon black powder added accounts for 0.15% of the total mass of the slurry; commercially available ordinary bagged alumina powder , with an average particle size of 50nm and a white color. The amount added accounts for 0.6% of the total mass of the slurry, and the rest is absolute ethanol.

[0031] First, the nano-carbon black powder is pretreated by dry ball milling to break the original large aggregate particles, and then mixed with absolute ethanol and stirred until a semi-finished carbon black slurry without obvious solid-liquid layering is obtained. The final semi-finished carbon black slurry is placed in an ultrasonic equipment for constant temperature ultrasonic dispersion. The constant temperature is controlled at 20±5°C, and the dispersion time is 30 to 60 minutes. A single-phase nano-car...

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Abstract

The invention discloses a carbon black and ceramic dual-phase nano-composite slurry for metal-based micro-nano powder preparation and a preparation method, which is characterized in that the composite slurry is composed of nano-carbon black powder, nano-ceramic powder and absolute ethanol ; Wherein, nano carbon black powder accounts for 0.05%~0.15% of slurry mass fraction, the mass fraction of nano ceramic powder is 4~6 times of added nano carbon black powder mass fraction, all the other are dehydrated alcohol, each component mass fraction Scores add up to 100%. The invention realizes the preparation of carbon black and ceramic dual-phase nanocomposite slurry with ethanol as the medium for the first time, and introduces nano-carbon black with anti-wear effect and nano-ceramic with anti-wear effect at the same time, so that the prepared laser wear-resistant modified layer has good abrasion resistance. At the same time, the slurry of the invention not only has pure components but also has good dispersion stability, and has good use performance and engineering application value.

Description

technical field [0001] The invention relates to a nano slurry, in particular to a dual-phase nano slurry, in particular to a carbon black and ceramic dual-phase nano composite slurry for preparing metal-based micro-nano powder and a preparation method thereof. Background technique [0002] In recent years, a technology for constructing mesoscopic (micro-nano-level) new substances --- micro-nano particle composite technology has attracted the attention of experts and scholars at home and abroad. Micro-nano particle composite technology is a technology that coats nanoparticles on the surface of micro-particles or disperses them in micro-particles to prepare micro-nano composite powders with micro-nano synergistic multifunctional effects. If the nanoparticles with wear-reducing and wear-resisting properties are introduced into the micro-nano-powder to construct the micronano-powder, the wear resistance of the prepared material will be greatly improved. It can be said that the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F1/02
Inventor 王宏宇周建忠袁晓明黎向锋许晓静吴志奎姜银方金镜林威
Owner JIANGSU UNIV
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