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

Preparation method of black zirconia ceramic material

A technology of black zirconia and ceramic materials, applied in the field of zirconia ceramics, which can solve the problems of difficulty in making uniformly colored black zirconia ceramics, environmental and human health hazards, and pinholes on the surface of ceramic products, so as to achieve good anti-aging properties, improve gloss, and prevent low-temperature degradation

Active Publication Date: 2021-04-20
长裕控股集团股份有限公司
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this temperature, most of the black material will decompose and volatilize, resulting in pinholes on the surface of the produced ceramic products, making it difficult to produce uniformly colored black zirconia ceramics; and the added black color material is easy to react with yttrium oxide, The T+C phase content of black zirconia ceramic materials is reduced, which leads to ceramic cracking; in addition, chromium oxide is generally used as raw material in the industry to prepare black zirconia ceramics, but chromium oxide is a toxic chemical substance, which is easy to damage the environment. and human health hazards

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 black zirconia ceramic material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] (1) Mix zirconium oxychloride and yttrium trichloride solutions in a high-pressure reactor, the heating temperature is 140° C., the holding time is 4 hours, add citric acid solution to prepare a gel solution, add sodium hydroxide solution to neutralize, The pH value is controlled at 8. Wherein, the zirconium oxychloride solution is measured by the mass of solute zirconia, and the yttrium trichloride solution is measured by the mass of solute yttrium oxide. In the chemical composition, the mass ratio of (zirconia + hafnium oxide): yttrium oxide is 96.22:3.78. The amount of the organic acid added is based on the mass of the solute, and is 10% of the total mass of the two oxides of zirconia and yttrium oxide.

[0040] (2) After dechlorinating and desodiumizing the neutralized product, carry out microwave crystallization treatment, the treatment temperature is 500°C, and the holding time is 1 hour, to obtain a highly dispersed and highly tetragonal yttrium-zirconium precur...

Embodiment 2

[0055] (1) Mix zirconium oxychloride and yttrium trichloride solutions in a high-pressure reactor, the heating temperature is 140° C., the holding time is 4 hours, add citric acid solution to prepare a gel solution, add sodium hydroxide solution to neutralize, The pH is controlled at 11. Wherein, the zirconium oxychloride solution is measured by the mass of solute zirconia, and the yttrium trichloride solution is measured by the mass of solute yttrium oxide. In the chemical composition, the mass ratio of (zirconia + hafnium oxide): yttrium oxide is 96.22:3.78. The amount of the organic acid added is based on the mass of the solute, and is 10% of the total mass of the two oxides of zirconia and yttrium oxide.

[0056] (2) After dechlorinating and desodiumizing the neutralized product, carry out microwave crystallization treatment, the treatment temperature is 500°C, and the holding time is 1 hour, to obtain a highly dispersed and highly tetragonal yttrium-zirconium precursor: ...

Embodiment 3

[0067] (1) Mix zirconium oxychloride and yttrium trichloride solutions in a high-pressure reactor, the heating temperature is 140° C., the holding time is 4 hours, add citric acid solution to prepare a gel solution, add sodium hydroxide solution to neutralize, The pH value is controlled at 8-11. Wherein, the zirconium oxychloride solution is measured by the mass of solute zirconia, and the yttrium trichloride solution is measured by the mass of solute yttrium oxide. In the chemical composition, the mass ratio of (zirconia + hafnium oxide): yttrium oxide is 96.22:3.78. The amount of the organic acid added is based on the mass of the solute, and is 10% of the total mass of the two oxides of zirconia and yttrium oxide.

[0068] (2) After dechlorinating and desodiumizing the neutralized product, carry out microwave crystallization treatment, the treatment temperature is 600°C, and the holding time is 1 hour to obtain a highly dispersed and highly tetragonal yttrium-zirconium prec...

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
specific surface areaaaaaaaaaaa
specific surface areaaaaaaaaaaa
specific surface areaaaaaaaaaaa
Login to View More

Abstract

The invention relates to a preparation method of a black zirconia ceramic material, and belongs to the technical field of zirconia ceramics. The preparation method comprises the following steps: synthesizing by adopting a hydrolytic polymerization method, regulating and controlling by adopting a microwave crystallization mode to obtain a high tetragonal phase yttrium-zirconium precursor, adding a black pigment, performing mixing, calcining and crushing to obtain powder, then preforming the black zirconium oxide ceramic powder, and sintering a preformed ceramic blank at high temperature to obtain the black zirconium oxide ceramic material. The product prepared by the invention does not contain toxic chromium element, has uniform chemical components, stable black chromaticity, high blackness, high toughness, high strength, good aging resistance and good product consistency and stability, and is suitable for being applied to various fields.

Description

technical field [0001] The invention relates to a preparation method of a black zirconia ceramic material, which belongs to the technical field of zirconia ceramics. Background technique [0002] Yttrium stabilized zirconia ceramics are high-tech ceramics with high strength, high hardness, high toughness and excellent wear resistance, which are widely used in various industries, such as optical communications, oxygen sensors, medical ceramic plungers, shaft seals Bearings, sand mill ceramic parts, ceramic molds, etc., can even be used in artificial joints. In recent years, with the continuous improvement of people's living standards, people's demand for decorations is also increasing. Black zirconia ceramics have a lower density than metals and excellent mechanical properties. The skin has no allergic side effects, and has attracted widespread attention. It has been used in emerging industries such as ceramic mobile phone backplanes, smart wearable products, and high-end de...

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 Applications(China)
IPC IPC(8): C04B35/48C04B35/624
Inventor 高勇刘策赵中帆袁光政李园园纪庆娟
Owner 长裕控股集团股份有限公司
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