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Brown zirconia ceramic material and preparation method thereof

A zirconia ceramic and zirconia technology are applied in the field of brown zirconia ceramic materials and their preparation, which can solve the problems of improving the fracture toughness and flexural strength of zirconia ceramics and reducing the sintering temperature, and achieve stable coloring effect and high density. High, chemically stable effect

Pending Publication Date: 2022-05-27
长裕控股集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The appearance of the ceramic material obtained by the present invention is characterized by brown color, and the sintering temperature needs to be lowered to ensure that the ceramic material is brown after sintering, and the fracture toughness and bending strength of zirconia ceramics obtained by low-temperature sintering need to be improved.

Method used

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  • Brown zirconia ceramic material and preparation method thereof
  • Brown zirconia ceramic material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A preparation method of brown zirconia ceramic material, the method is as follows:

[0033] (1) by weight, take by weighing 43 parts of manganese dioxide, 15 parts of earth red, 28 parts of chromium oxides, 11 parts of iron oxides, 3 parts of zinc oxides, and mix uniformly to obtain colorant powder;

[0034] (2) adding the colorant powder into deionized water, preparing a slurry with a solid content of 75%, adding linoleic acid accounting for 0.6% of the total mass of the colorant powder, and uniformly ball-milling to obtain the colorant slurry;

[0035] (3) adding the zirconia powder into deionized water to prepare a slurry with a solid content of 70%, adding stearamide accounting for 0.08% of the mass of the zirconia powder, and uniformly ball-milling to obtain the zirconia slurry;

[0036] (4) according to the percentage of colorant powder 10wt% and zirconia powder 90wt%, slowly pour the colorant slurry into the zirconia slurry, and keep stirring to make it evenly mi...

Embodiment 2

[0040] A preparation method of brown zirconia ceramic material, the method is as follows:

[0041] (1) by weight, take by weighing 44 parts of manganese dioxide, 15 parts of earth red, 26 parts of chromium oxides, 13 parts of iron oxides, 2 parts of zinc oxides, and mix uniformly to obtain colorant powder;

[0042] (2) adding the colorant powder into deionized water to prepare a slurry with a solid content of 65%, adding lanolin that accounts for 0.5% of the colorant powder mass, and uniformly ball-milling to obtain the colorant slurry;

[0043] (3) adding the zirconia powder into deionized water to prepare a slurry with a solid content of 75%, adding stearamide accounting for 0.05% of the mass of the zirconia powder, and uniformly ball-milling to obtain the zirconia slurry;

[0044](4) according to the percentage of colorant powder 9wt% and zirconia powder 91wt%, slowly pour the colorant slurry into the zirconia slurry, and keep stirring to make it evenly mixed to obtain a mi...

Embodiment 3

[0048] A preparation method of brown zirconia ceramic material, the method is as follows:

[0049] (1) by weight, take by weighing 45 parts of manganese dioxide, 16 parts of earth red, 25 parts of chromium oxides, 10 parts of iron oxides, 4 parts of zinc oxides, and mix uniformly to obtain colorant powder;

[0050] (2) adding the colorant powder into deionized water to prepare a slurry with a solid content of 70%, adding lanolin that accounts for 0.7% of the colorant powder mass, and uniformly ball-milling to obtain the colorant slurry;

[0051] (3) adding the zirconia powder into deionized water to prepare a slurry with a solid content of 70%, adding fatty acid accounting for 0.05% of the mass of the zirconia powder, and uniformly ball-milling to obtain the zirconia slurry;

[0052] (4) according to the percentage of colorant powder 8wt% and zirconia powder 92wt%, slowly pour the colorant slurry into the zirconia slurry, and keep stirring to make it evenly mixed to obtain a m...

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Abstract

The invention belongs to the technical field of colored zirconia ceramics, and particularly relates to a brown zirconia ceramic material and a preparation method thereof. The preparation method of the brown zirconia ceramic material comprises the following steps: weighing 40-45 parts by weight of manganese dioxide, 15-20 parts by weight of earth red, 25-30 parts by weight of chromic oxide, 10-15 parts by weight of iron oxide and 2-4 parts by weight of zinc oxide, uniformly mixing, adding into deionized water, adding a grinding aid, and uniformly ball-milling to obtain colorant slurry; adding the zirconium oxide powder into deionized water, adding a dispersing agent, and uniformly ball-milling to obtain zirconium oxide slurry; and adding the colorant slurry into the zirconium oxide slurry, mixing, granulating, forming and sintering to obtain the brown zirconium oxide ceramic material. The brown zirconia ceramic material prepared by the method is good in glossiness, stable in chemical performance, transparent and bright in color, high in hardness, high in toughness and suitable for industrial production.

Description

technical field [0001] The invention belongs to the technical field of colored zirconia ceramics, in particular to a brown zirconia ceramic material and a preparation method thereof. Background technique [0002] Zirconia is an advanced ceramic material with excellent corrosion resistance, electrical conductivity and high chemical stability. The unique martensitic transformation of zirconia plays an important role in the field of materials. In addition to its excellent mechanical properties, zirconia also has a high refractive index, and it is used to prepare colored polycrystalline materials with very high ornamental properties. Colored zirconia ceramics have bright colors on the surface, high metallic luster, and are harmless to the human body. Therefore, colored zirconia is gradually developing towards replacing metal jewelry. [0003] At present, brown zirconia ceramics are used in many fields, and the existing brown zirconia ceramics have poor performance after color d...

Claims

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Application Information

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IPC IPC(8): C04B35/48C04B35/622C04B35/63
CPCC04B35/48C04B35/622C04B35/6303C04B2235/3267C04B2235/3241C04B2235/3272C04B2235/3284C04B2235/3225C04B2235/5445C04B2235/602C04B2235/656C04B2235/6567C04B2235/96C04B2235/9661
Inventor 杨瑶刚王德昌高勇
Owner 长裕控股集团有限公司
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