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Wear-resisting zirconium oxide ceramics and preparation method thereof

A technology of zirconia ceramics and zirconia, which is applied in the field of wear-resistant zirconia ceramics and its preparation, can solve the problems of restricting the application of pure zirconia, product cracking, general wear resistance, etc., to improve hardness, improve recrystallization ability, The effect of enhancing the wear resistance

Inactive Publication Date: 2015-07-01
佛山市马可新地陶瓷有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since a large volume change occurs when the monoclinic phase transforms to the tetragonal phase, and a large volume change occurs in the opposite direction when cooled, it is easy to cause cracking of the product, which limits the application of pure zirconia in high temperature fields. , its general wear resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Wear-resistant zirconia ceramics, including the following raw materials in parts by weight: 40 parts of zirconia, 1 part of barium oxide, 2 parts of zinc oxide, 10 parts of cobalt oxide, 15 parts of hydroxyapatite, 8 parts of crosslinking agent, and surfactant 10 servings.

[0016] The ratio of Ga and P in hydroxyapatite is 1:1.98.

[0017] The crosslinking agent is N,N'-methylenebisacrylamide, divinylbenzene, and diethylenetriamine with a mass ratio of 1:7:1.

[0018] The surfactant is glyceryl monostearate, sorbitan sesquioleate, propylene glycol fatty acid ester, and dioctyl sodium sulfosuccinate in a mass ratio of 1:1:1:2.

[0019] The preparation method of the wear-resistant zirconia ceramics comprises the following steps: putting zirconia, barium oxide, zinc oxide, cobalt oxide, hydroxyapatite, cross-linking agent, and surfactant into a platinum crucible and melting at 1400°C for 2 hours, Transfer to the annealing furnace for heat treatment for 4h, and slowly co...

Embodiment 2

[0022] Wear-resistant zirconia ceramics, including the following raw materials in parts by weight: 50 parts of zirconia, 5 parts of barium oxide, 2 parts of zinc oxide, 10 parts of cobalt oxide, 15 parts of hydroxyapatite, 8 parts of crosslinking agent, surfactant 10 servings.

[0023] The ratio of Ga and P in hydroxyapatite is 1:1.98.

[0024] The crosslinking agent is N,N'-methylenebisacrylamide and diethylenetriamine with a mass ratio of 1:7.

[0025] The surfactant is glyceryl monostearate, propylene glycol fatty acid ester, and dioctyl sodium sulfosuccinate with a mass ratio of 1:3:4.

[0026] The preparation method of the above-mentioned wear-resistant zirconia ceramics comprises the following steps: putting zirconia, barium oxide, zinc oxide, cobalt oxide, hydroxyapatite, crosslinking agent, and surfactant into a platinum crucible and melting at 1500° C. for 3 hours, Transfer to the annealing furnace for heat treatment for 5 hours, and slowly cool to room temperature....

Embodiment 3

[0029] Wear-resistant zirconia ceramics, including the following raw materials in parts by weight: 45 parts of zirconia, 4 parts of barium oxide, 2.5 parts of zinc oxide, 11 parts of cobalt oxide, 16 parts of hydroxyapatite, 8.5 parts of crosslinking agent, surfactant 12 servings.

[0030] The ratio of Ga and P in hydroxyapatite is 1:1.98.

[0031] The crosslinking agent is N,N'-methylenebisacrylamide and diethylenetriamine with a mass ratio of 3:1.

[0032] The surfactant is glyceryl monostearate and sorbitan sesquioleate with a mass ratio of 1:8.

[0033] The preparation method of the wear-resistant zirconia ceramics comprises the following steps: putting zirconia, barium oxide, zinc oxide, cobalt oxide, hydroxyapatite, crosslinking agent, and surfactant into a platinum crucible and melting at 1450°C for 2.5 hours , transferred to the annealing furnace for heat treatment for 4.5h, and slowly cooled to room temperature.

[0034] The heat treatment temperature is 120°C.

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Abstract

The invention discloses a wear-resisting zirconium oxide ceramics and a preparation method thereof. The ceramics comprises the following raw materials in parts by weight: 40-50 parts of zirconium oxide, 1-5 parts of barium oxide, 2-3 parts of zinc oxide, 10-12 parts of cobaltous oxide, 15-18 parts of hydroxyapatite, 8-9 parts of a coupling agent and 10-15 parts of a surfactant. The preparation method comprises the following steps: melting the zirconium oxide, barium oxide, zinc oxide, cobaltous oxide, hydroxyapatite, the coupling agent and the surfactant at 1400-1500 DEG C in a platinum crucible for 2-3 hours; performing heat treatment on the molten mixture in an annealing furnace for 4-5 hours and slowly cooling the mixture to the room temperature, so that the wear-resisting zirconium oxide ceramic is obtained. The crystal lattice of the zirconium oxide is deformed by the barium oxide in the ceramics, so that the recrystallization property of zirconium oxide is improved and the hardness of the zirconium oxide ceramic is increased, so that the wear-resisting performance of the zirconium oxide ceramic is reinforced.

Description

technical field [0001] The invention relates to the field of biotechnology, in particular to a wear-resistant zirconia ceramic and a preparation method thereof. Background technique [0002] Pure zirconia is a white solid, and it will appear gray or light yellow when it contains impurities, and various other colors can be displayed by adding a color developer. The molecular weight of pure zirconia is 123.22, the theoretical density is 5.89g / cm3, and the melting point is 2715°C. Usually contains a small amount of hafnium oxide, which is difficult to separate, but has no significant effect on the properties of zirconia. Zirconia has three crystal forms: monoclinic, tetragonal, and cubic. Zirconia only appears as a monoclinic phase at room temperature, and turns into a tetragonal phase when heated to about 1100 ° C, and turns into a cubic phase when heated to a higher temperature. Since a large volume change occurs when the monoclinic phase transforms to the tetragonal ph...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/48C04B35/622
CPCC04B35/48C04B35/622C04B35/632C04B35/653C04B2235/3212C04B2235/3215C04B2235/3275C04B2235/3284C04B2235/447C04B2235/48C04B2235/656C04B2235/96
Inventor 潘林根刘大学郭玉芹
Owner 佛山市马可新地陶瓷有限公司
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