Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of in-situ synthesis method of zirconium carbide nanopowder

A nano-powder, in-situ synthesis technology, used in carbon compounds, chemical instruments and methods, inorganic chemistry, etc., can solve the problems of organic solvent toxicity and high cost, and achieve the effects of simple operation, convenient operation and simple equipment

Active Publication Date: 2020-04-21
温岭工联工量刃具科技服务有限公司
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The equipment required for the liquid-phase precursor method is simple and the process cycle is short, but the organic solvent used has certain toxicity to the human body and the cost is high

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of in-situ synthesis method of zirconium carbide nanopowder
  • A kind of in-situ synthesis method of zirconium carbide nanopowder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A method for in-situ synthesis of zirconium carbide nanopowder, the preparation process of which is:

[0036] 1. Weighing: Weigh Cu powder with a particle size of ~0.5μm, Zr powder with a particle size of ~45μm, and graphite powder with a particle size of ~100nm in a molar ratio of 0.4:1:1, and the raw materials used are all commercial powders;

[0037] 2. Mixing materials: Put the weighed Cu powder, Zr powder, C powder, and grinding balls and ball milling tanks into a vacuum glove box. Put the balls and powder into the ball mill jar in the gas environment, and then put the sealed ball mill jar into the roller ball mill and mix for 10 hours, wherein the balls are ZrO 2 Grinding balls, the weight ratio of grinding balls to powder is 10:1, and the rotating speed of the ball mill is 60 rpm;

[0038] 3. Loading: Put the mixed Cu-Zr-C powder into Al 2 o 3 In the ceramic boat, then put the ceramic boat with the powder into the high-temperature tubular atmosphere furnace. A...

Embodiment 2

[0044] A method for in-situ synthesis of zirconium carbide nanopowder, the preparation process of which is:

[0045] 1. Weighing: Weigh Cu powder with a particle size of ~0.5μm, Zr powder with a particle size of ~45μm, and graphite powder with a particle size of ~100nm in a molar ratio of 0.69:1:1, and the raw materials used are all commercial powders;

[0046] 2. Mixing materials: Put the weighed Cu powder, Zr powder, C powder, and grinding balls and ball milling tanks into a vacuum glove box. Put the balls and powder into the ball mill jar in the gas environment, then put the sealed ball mill jar into the roller ball mill and mix for 14 hours, wherein the balls are ZrO 2 Grinding balls, the weight ratio of the grinding balls to the powder is 10:1, and the rotating speed of the ball mill is 50 rpm;

[0047] 3. Loading: Put the mixed Cu-Zr-C powder into Al 2 o 3 In the ceramic boat, then put the ceramic boat with the powder into the high-temperature tubular atmosphere furna...

Embodiment 3

[0051] A method for in-situ synthesis of zirconium carbide nanopowder, the preparation process of which is:

[0052] 1. Weighing: Weigh Cu powder with a particle size of ~75 μm, Zr powder with a particle size of ~45 μm, and graphite powder with a particle size of ~6.5 μm in a molar ratio of 0.4:1:1, and the raw materials used are all commercial powders;

[0053] 2. Mixing materials: Put the weighed Cu powder, Zr powder, C powder, and grinding balls and ball milling tanks into a vacuum glove box. Put the balls and powder into the ball mill jar in the gas environment, and then put the sealed ball mill jar into the roller ball mill and mix for 10 hours, wherein the balls are ZrO 2 Grinding balls, the weight ratio of the grinding balls to the powder is 10:1, and the rotating speed of the ball mill is 70 rpm;

[0054] 3. Loading: Put the mixed Cu-Zr-C powder into Al 2 o 3 In the ceramic boat, then put the ceramic boat with the powder into the high-temperature tubular atmosphere ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
sizeaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the field of preparation of transition metal carbides and discloses an in-situ synthesis method for a zirconium carbide nano powder. The preparation method comprises the following steps: taking a Zr powder and a graphite powder as basic raw materials, and taking a Cu powder as an additive, wherein a molar ratio of the Zr powder to the graphite powder in the raw materials is 1, and the addition amount of the Cu powder is 10-40wt.%; adding the uniformly mixed Cu-Zr-C powder into a high-temperature atmosphere oven, heating to 1250 DEG C, performing furnace cooling to a room temperature, quenching the product, and drying, so as to obtain the nano ZrC powder. The method disclosed by the invention has the characteristics of being simple in equipment, simple in process, high in production efficiency, narrow in raw material requirements, high in product nanocrystallization degree, narrow in particle size range and the like, so that large-scale strong production can berealized.

Description

technical field [0001] The invention belongs to the field of preparation of transition group metal carbides, in particular to an in-situ synthesis method of zirconium carbide nanopowder. Background technique [0002] As a typical transition metal carbide, zirconium carbide (ZrC) has the advantages of high melting point (3540°C), high hardness (2560HV), good chemical stability (oxidation resistance temperature: 1100-1400°C) and thermal conductivity, etc. It is used in high temperature structural ceramics, metal matrix composites, abrasives and other fields. At the same time, ZrC has a small thermal neutron absorption cross-section and good radiation resistance, and is often used in nuclear fuel particle coatings and thermal photoelectric radiator coatings. In addition, ZrC has ideal heat absorption and heat storage characteristics, and can be applied to heat storage and temperature regulating textiles. Today, the large-scale production of high-purity, nano-sized ZrC powder ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C01B32/914C04B35/56C04B35/626
CPCC01B32/914C01P2002/72C01P2004/03C01P2004/64C04B35/5622C04B35/626
Inventor 张梦贤姚海龙王洪涛陈清宇白小波赵先锐方一航霍颜秋王天乐
Owner 温岭工联工量刃具科技服务有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com