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Raw material powder for composite-grain zirconia ceramics with high wear resistance and preparation process of raw material powder

A technology of zirconia ceramics and preparation process, which is applied in the field of ceramics, can solve problems such as sharpness reduction, and achieve the effect of high wear resistance and high hardness

Active Publication Date: 2015-05-06
厦门智中精密研磨科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But in fact, after a period of normal use of ceramic knives, the sharpness will still drop significantly

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A preparation process of composite grain high wear-resistant zirconia ceramic raw material powder is carried out according to the following steps:

[0028] (1) Zirconium oxychloride, yttrium nitrate, and polyethylene glycol were stirred and dissolved in deionized water to prepare solution A, wherein: the molar ratio of zirconium oxychloride to yttrium nitrate was 97:3; polyethylene glycol: The weight ratio of (zirconium oxychloride + yttrium nitrate) is 1:800; the weight ratio of deionized water: (zirconium oxychloride + yttrium nitrate + polyethylene glycol) is 1:0.6;

[0029] Ammonium bicarbonate and deionized water were prepared into a solution with a concentration of 20% by mass to obtain solution B;

[0030] Prepare Pingpingjia and deionized water into a solution with a concentration of 10% by mass to obtain solution C; the volume ratio of solution C to solution A is 1:10;

[0031] (2) First add yttrium-stabilized zirconia clinker and deionized water to the reacto...

Embodiment 2

[0037] A preparation process of composite grain high wear-resistant zirconia ceramic raw material powder is carried out according to the following steps:

[0038] (1) Zirconium oxychloride, yttrium nitrate, and polyethylene glycol were stirred and dissolved in deionized water to prepare solution A, wherein: the molar ratio of zirconium oxychloride to yttrium nitrate was 97:3; polyethylene glycol: The weight ratio of (zirconium oxychloride + yttrium nitrate) is 1:100; the weight ratio of deionized water: (zirconium oxychloride + yttrium nitrate + polyethylene glycol) is 1:0.5;

[0039] Ammonium bicarbonate and deionized water were prepared into a solution with a concentration of 15% by mass to obtain solution B;

[0040] Prepare Pingpingjia and deionized water into a solution with a concentration of 10% by mass to obtain solution C; the volume ratio of solution C to solution A is 1:5;

[0041] (2) First, add yttrium-stabilized zirconia clinker and deionized water to a reaction...

Embodiment 3

[0046] A preparation process of composite grain high wear-resistant zirconia ceramic raw material powder is carried out according to the following steps:

[0047] (1) Zirconium oxychloride, yttrium nitrate, and polyethylene glycol were stirred and dissolved in deionized water to prepare solution A, wherein: the molar ratio of zirconium oxychloride to yttrium nitrate was 97:3; polyethylene glycol: The weight ratio of (zirconium oxychloride + yttrium nitrate) is 1:500; the weight ratio of deionized water: (zirconium oxychloride + yttrium nitrate + polyethylene glycol) is 1:0.8;

[0048] Ammonium bicarbonate and deionized water were prepared into a solution with a concentration of 16% by mass to obtain solution B;

[0049] Prepare Pingpingjia and deionized water to make a solution with a concentration of 10% by mass to obtain solution C; the volume ratio of solution C to solution A is 1:20;

[0050] (2) First, add yttrium-stabilized zirconia clinker and deionized water to a reac...

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PUM

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Abstract

The invention discloses raw material powder for composite-grain zirconia ceramics with high wear resistance and a preparation process of the raw material powder. The raw material powder comprises a main material and a yttrium-stable zirconia clinker, wherein the weight ratio of the yttrium-stable zirconia clinker to the main material is 1: (5-20); the main material is a mixture of zirconium oxychloride and yttrium nitrate; and the molar ratio of zirconium oxychloride to yttrium nitrate is 97:3. The raw material powder disclosed by the invention is high in wear resistance and hardness and corrosion-resistant. A ceramic part made of the raw material powder disclosed by the invention is high in wear resistance and beneficial to continuous and durable application; and the raw material powder is particularly suitable for ceramic knives and can be widely applied to other ceramic equipment or tools with high wear-resistant requirements.

Description

technical field [0001] The invention relates to the field of ceramics, in particular to a composite grain high wear-resistant zirconia ceramic raw material powder and a preparation process thereof. Background technique [0002] With people's pursuit of a green, healthy and environmentally friendly lifestyle, new concept ceramic knives are becoming more and more popular and gradually becoming a fashion, especially the use and market of zirconia ceramic knives are gradually expanding. Compared with steel knives, ceramic knives have a longer service life and are known as "never wear". But in fact, after a period of normal use of ceramic knives, the sharpness will still drop significantly. There is a need in the market for ceramic knives that really last longer and wear better. [0003] Zirconia ceramic knives are made of zirconia ceramic powder, and the performance of zirconia ceramic raw material powder largely determines the characteristics of the finished zirconia ceramic ...

Claims

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Application Information

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IPC IPC(8): C04B35/48C04B35/626
Inventor 郑炜徐卫东
Owner 厦门智中精密研磨科技有限公司
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