Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method of nano-stabilized zirconia powder

A technology for stabilizing zirconia and powder, which is applied in the field of nanomaterials, can solve the problems of complex production process and high cost, and achieve the effect of narrow particle size distribution, short process and good dispersion

Active Publication Date: 2016-06-29
洛阳市方德新材料科技有限公司
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The particles prepared by this method are spherical, and have incomparable advantages in the preparation of ultra-fine powders, especially nano-powders, compared with other chemical methods, but at the same time, there are disadvantages of complicated production process and high cost

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
  • Preparation method of nano-stabilized zirconia powder
  • Preparation method of nano-stabilized zirconia powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] (1) Melt the weighed zirconium nitrate and yttrium nitrate into deionized water, add citric acid after they are completely dissolved, and add ammonia water to adjust the pH value to 5, then add ethylene glycol, heat to 70°C in a water bath, and The 1h esterification reaction converted the solution into a colloid.

[0038] (2) Add the colloid and kerosene into the pulper 1 at a volume ratio of 100:5, and make the material into a fluid slurry through the pulper.

[0039] (3) The slurry obtained in step (2) is transported to the atomizer 2 through the pressure pump 7, atomized by 6MPa high-pressure air, and then dried into fine dry materials by the 300°C high-temperature air in the drying tower 3 , drying time 0.1s.

[0040] (4) The material in the step (3) enters the heating zone with a temperature of 700°C through the 4 feed ports of the combustion chamber, burns rapidly, and burns violently under the action of oxygen in the high temperature zone (oxygen delivery pressu...

Embodiment 2

[0042] (1) Melt the weighed zirconium nitrate and magnesium nitrate into deionized water, add glycine after they are completely dissolved, and add ammonia water to adjust the pH value to 6, then add ethylene glycol, heat to 80°C in a water bath, and pass through 0.5 The esterification reaction converts the solution into a colloid.

[0043] (2) Put the colloid, white oil and alcohol into the pulper 1 at a volume ratio of 100:3, and make the material into a fluid slurry through the pulper.

[0044] (3) The slurry obtained in step (2) is transported to the atomizer 2 through the pressure pump 7, atomized by 10MPa high-pressure air, and then dried into fine dry materials by the action of 300°C high-temperature air in the drying tower 3, Drying time 5s.

[0045] (4) The material in the step (3) enters the heating zone with a temperature of 600°C through the 4 feed ports of the combustion chamber, burns rapidly, and burns violently under the action of oxygen (oxygen delivery pressu...

Embodiment 3

[0047] (1) Melt the weighed zirconium oxychloride, yttrium chloride, and cerium chloride into deionized water, add ethylenediaminetetraacetic acid, amino acid after they are completely dissolved, and add ammonia water to adjust the pH value to 8, then add butanediamine Alcohol, heated to 80 ° C in a water bath, after 1.5h esterification reaction to convert the solution into a colloid.

[0048] (2) Add the colloid, alcohol, and polyethylene glycol into the pulper 1 at a volume ratio of 100:6, and make the material into a fluid slurry through the pulper.

[0049] (3) The slurry obtained in step (2) is transported to the atomizer 2 through the pressure pump 7, atomized by 8MPa high-pressure air, and then dried into fine dry materials by the action of 250°C high-temperature air in the drying tower 3, Drying time 30s.

[0050] (4) The material in the step (3) enters the heating zone with a temperature of 650°C through the 4 feed ports of the combustion chamber, burns rapidly, and ...

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
sizeaaaaaaaaaa
sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention relates to a preparation method of nano-stabilized zirconia powder. Firstly, soluble zirconium salt and soluble metal salt as a stabilizer additive are melted into deionized water, and after they are completely dissolved, polycarboxylic acid complexing agent is added, and adjusted pH value, then add polyol crosslinking agent, heat in a water bath, convert the solution into colloid through esterification reaction; slurry the colloid and dispersant to obtain a slurry that can be transported by a pump; atomize the slurry , drying; the dry material is fully burned under the action of oxygen to obtain nano-stabilized zirconia powder. The product has the advantages of small particle size, narrow particle size distribution, uniform composition, good dispersion, high powder crystallinity, simple operation and short process.

Description

technical field [0001] The invention relates to the field of nanometer materials, in particular to a preparation method of nanometer stabilized zirconia powder. Background technique [0002] Stabilized zirconia is in ZrO 2 Add some stabilizers with similar ionic radius to Zr and similar properties to the system, such as Y 2 o 3 , CaO, MgO, CeO 2 、Sc 2 o 3 etc., they are in ZrO 2 The medium solubility is very large, and it is easy to form a solid solution, change the internal structure of the crystal, and form a metastable tetragonal phase, tetragonal phase or three-dimensional phase. Stabilized zirconia has the advantages of high oxygen ion conductivity, good mechanical properties, excellent oxidation resistance and corrosion resistance, and no reaction with electrode materials. Nano-stabilized zirconia is a new type of high-tech material. As a new type of electrolyte material, it has been widely used in solid oxide fuel cells, automotive oxygen sensors, catalytic fil...

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): C01G25/02B82Y30/00
Inventor 阳震史褆赵涛
Owner 洛阳市方德新材料科技有限公司