Black zirconia ceramic and preparation method thereof

A technology of black zirconia and zirconia, which is applied in the field of ceramic materials and its preparation, can solve the problems of insufficient blackness, not black, and reduce product strength and hardness, so as to improve anti-aging performance, thermal stability, and high covering Strength and blackness, the effect of increasing strength and hardness

Inactive Publication Date: 2018-01-09
CHAOZHOU THREE CIRCLE GRP
View PDF4 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When using a vacuum furnace, reducing atmosphere furnace or inert atmosphere furnace, it is necessary to sinter zirconia into porcelain in the air, and then blacken it in the above-mentioned sintering furnace, which greatly increases the cost of the production process. The products in the blackening process are prone to color difference due to the unevenness of the color center, resulting in a series of problems such as insufficient blackness of the product
However, when zirconia is doped with iron, cobalt, nickel and other pigment oxides, due to the inconsistent absorption wavelengths of the oxides, it is easy to cause black and not black, and the color of the product appears reddish, bluish, greenish, etc.; and The added oxides are easy to react with yttrium and zirconium, destroying the stabi

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
  • Black zirconia ceramic and preparation method thereof
  • Black zirconia ceramic and preparation method thereof
  • Black zirconia ceramic and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0056] Example 1

[0057] An embodiment of the black zirconia ceramic material composition of the present invention, the black zirconia ceramic material composition in this embodiment contains the following components in mass percentage:

[0058] Iron oxide 1%, cobalt oxide 0.3%, chromium oxide 2.5%, aluminum oxide 2%, nickel oxide 0.1%, manganese oxide 1%, zinc oxide 1%, yttrium oxide 5%, titanium oxide 0.15%, silicon oxide 0.01%, 0.5% of cerium oxide, 1.5% of strontium oxide, 1.5% of calcium oxide, 3% of magnesium oxide, and the balance is zirconium oxide containing hafnium oxide; in the zirconium oxide containing hafnium oxide, hafnium oxide is in the The mass percent content in zirconium is 30%.

[0059] The black zirconia ceramic material composition of this embodiment is a powder, and the D50 particle size of the powder is 0.8 μm, and the specific surface area is 5m 2 / g.

Example Embodiment

[0060] Example 2

[0061] An embodiment of the black zirconia ceramic material composition of the present invention, the black zirconia ceramic material composition in this embodiment contains the following components in mass percentage:

[0062] Iron oxide 2%, cobalt oxide 1%, chromium oxide 1%, aluminum oxide 2%, nickel oxide 1%, manganese oxide 0.1%, zinc oxide 1%, yttrium oxide 5.5%, titanium oxide 1%, silicon dioxide 1% , cerium oxide 1%, strontium oxide 2%, calcium oxide 2.5%, magnesium oxide 1.5%, and the balance is zirconium oxide containing hafnium oxide; in the zirconium oxide containing hafnium oxide, hafnium oxide is in the The mass percent content in zirconia is 15%.

[0063] The black zirconia ceramic material composition of this embodiment is a powder, and the D50 particle size of the powder is 1 μm, and the specific surface area is 8m 2 / g.

Example Embodiment

[0064] Example 3

[0065] An embodiment of the black zirconia ceramic material composition of the present invention, the black zirconia ceramic material composition in this embodiment contains the following components in mass percentage:

[0066] Iron oxide 2%, cobalt oxide 0.8%, chromium oxide 2%, aluminum oxide 1%, nickel oxide 0.5%, manganese oxide 0.5%, zinc oxide 2%, yttrium oxide 5%, titanium oxide 0.5%, silicon dioxide 0.5% , cerium oxide 1%, strontium oxide 3%, calcium oxide 2%, magnesium oxide 4%, and the balance is zirconium oxide containing hafnium oxide; in the zirconium oxide containing hafnium oxide, hafnium oxide is in the The mass percent content in zirconia is 10%.

[0067] The black zirconia ceramic material composition of this embodiment is a powder, and the D50 particle size of the powder is 1.2 μm, and the specific surface area is 9m 2 / g.

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
Granularityaaaaaaaaaa
Specific surface areaaaaaaaaaaa
Granularityaaaaaaaaaa
Login to view more

Abstract

The invention discloses a black zirconia ceramic material composition. The black zirconia ceramic material composition is prepared from the following ingredients in percentage by mass: 0.01-4% of ferric oxide, 0.01-3.5% of cobaltous oxide, 0.01-3.5% of chromic oxide, 0.01-15% of aluminum oxide, 0.01-4% of nickel oxide, 0.01-3.5% of manganese oxide, 0-3.5% of zinc oxide, 2-7% of yttrium oxide, 0-4%of titanium oxide, 0-3% of silicon dioxide, 0-5% of cerium oxide and the balance of hafnium oxide-containing zirconium oxide. The black zirconia ceramic material composition disclosed by the invention is small in powder particle size and uniform in dispersion, and a black zirconia ceramic containing the black zirconia ceramic material composition has relatively high strength and rigidity, relatively high covering power and relatively low transmittance. Meanwhile, the invention further discloses the black zirconia ceramic prepared by adopting the black zirconia ceramic material composition anda preparation method of the black zirconia ceramic.

Description

technical field [0001] The invention relates to a ceramic material and a preparation method thereof, in particular to a zirconia ceramic material and a preparation method thereof. Background technique [0002] Due to its excellent mechanical, thermal and electrical properties, zirconia is widely used in structural materials, optical components, oxygen sensitive components and fuel cells. In recent years, with the rapid development of people's demand for decorations, black zirconia ceramics have become a new favorite material for high-end decorations due to their excellent mechanical properties, bright colors, metallic luster and non-allergic effects. , mobile phone casings, etc. have broad market prospects. [0003] At present, the preparation of black zirconia ceramics mainly adopts the following two methods: 1. The zirconia ceramics are blackened in vacuum, reducing atmosphere or inert atmosphere to form oxygen vacancies, thereby forming point defects of color centers and...

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
IPC IPC(8): C04B35/48C04B35/626C04B35/638
Inventor 邱基华
Owner CHAOZHOU THREE CIRCLE GRP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap