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Method for preparing high-compactness zirconium oxide ceramic knife raw material powder

A technology of zirconia ceramics and raw material powder, which is applied in the field of preparation of raw material powder for high-density zirconia ceramic knives, which can solve the problem of micropores in the knife body, and achieve the effect of improving density uniformity and stabilizing the dense structure

Active Publication Date: 2013-10-02
FUJIAN JOHNSON MINING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a method for preparing high-density zirconia ceramic knife raw material powder, which solves the problem of micropores formed in the knife body during the preparation of ceramic knives

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A method for preparing high-density zirconia ceramic knife raw material powder is carried out according to the following steps:

[0033] (1) Prepare 1 part of base material, 0.0038 part of densifier, and 0.0096 part of surfactant in molar ratio;

[0034] The base material is a composition of zirconium oxychloride and yttrium nitrate, and the molar ratio of zirconium oxychloride to yttrium nitrate is 97:3;

[0035] The compacting agent is a composition of calcium metaborate, magnesium chloride and liquid sodium silicate, and the molar ratio of calcium metaborate, magnesium chloride and liquid sodium silicate is 1:0.5:0.4;

[0036] The surfactant is a composition of Pingpingjia and triethanolamine lauryl sulfate, and the molar ratio of Pingpingjia to triethanolamine lauryl sulfate is 1:5.

[0037] (2) Add zirconium oxychloride, yttrium nitrate, calcium metaborate, and magnesium chloride into deionized water and stir to dissolve completely to obtain solution A. The weight...

Embodiment 2

[0043] A method for preparing high-density zirconia ceramic knife raw material powder is carried out according to the following steps:

[0044] (1) Prepare 1 part of base material, 0.0032 part of densifier, and 0.0002 part of surfactant by molar ratio;

[0045] The base material is a composition of zirconium oxychloride and yttrium nitrate, and the molar ratio of zirconium oxychloride to yttrium nitrate is 97:3;

[0046] The compacting agent is a composition of calcium metaborate, magnesium chloride and liquid sodium silicate, and the molar ratio of calcium metaborate, magnesium chloride and liquid sodium silicate is 1:1:1.2;

[0047] Described tensio-active agent is the composition of Pingpingjia and triethanolamine lauryl sulfate, and the mol ratio of Pingpingjia and triethanolamine lauryl sulfate is 1:4;

[0048] (2) Add zirconium oxychloride, yttrium nitrate, calcium metaborate, and magnesium chloride into deionized water and stir to dissolve completely to obtain solution...

Embodiment 3

[0054] A method for preparing high-density zirconia ceramic knife raw material powder is carried out according to the following steps:

[0055] (1) Prepare 1 part of base material, 0.0066 part of compacting agent, and 0.018 part of surfactant in molar ratio;

[0056] The base material is a composition of zirconium oxychloride and yttrium nitrate, and the molar ratio of zirconium oxychloride to yttrium nitrate is 97:3;

[0057] Described compacting agent is the composition of calcium metaborate, magnesium chloride and liquid sodium silicate, and the molar ratio of calcium metaborate, magnesium chloride, liquid sodium silicate is 1:1.3:1;

[0058] Described tensio-active agent is the composition of Pingpingjia and triethanolamine lauryl sulfate, and the mol ratio of Pingpingjia and triethanolamine lauryl sulfate is 1:5;

[0059](2) Add zirconium oxychloride, yttrium nitrate, calcium metaborate, and magnesium chloride into deionized water and stir to dissolve completely to obtai...

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PUM

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Abstract

The invention discloses a method for preparing high-compactness zirconium oxide ceramic knife raw material powder. The powder comprises the following components in parts by molar ratio: 1 part of base material, 0.0001 to 0.5 part of dense agent and 0.0002 to 0.08 part of surfactant, wherein the base material is a composition of zirconium oxychloride and yttrium nitrate in the molar ratio of 97 to 3, the dense agent is a composition of calcium metaborate, magnesium chloride and liquid sodium silicate in the molar ratio of 1 to 0.05-1.3 to 0.2-1.9, and the surfactant is a composition of peregal and triethanolamine lauryl sulfate in the molar ratio of 1 to 2-5. The calcium metaborate, the magnesium chloride and the liquid sodium silicate are combined with the zirconium oxychloride and the yttrium nitrate to form a composite oxide, the effect of sealing a hole is achieved, and the density uniformity of a ceramic knife product is improved.

Description

technical field [0001] The invention relates to a zirconia ceramic knife raw material powder, in particular to a preparation method of a high-density zirconia ceramic knife raw material powder. Background technique [0002] The conventional preparation method of zirconia ceramic knives is to firstly prepare the raw material powder of ceramic knives, and then shape and sinter the raw material powders to make zirconia ceramic knives. The performance of the ceramic knife raw material powder determines the characteristics of the finished ceramic knife. [0003] At present, zirconia ceramic knives at home and abroad are generally prepared from a single 3% mol yttria-stabilized zirconia as a raw material. During the high-temperature sintering process, the knives will form many micropores. When using this ceramic knives for a long time to cut carrots, tomatoes, etc. For fruits and vegetables, the micropores of the knife body are easy to absorb fruit and vegetable juices and change...

Claims

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Application Information

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IPC IPC(8): C04B35/48C04B35/626
Inventor 徐卫东郑炜
Owner FUJIAN JOHNSON MINING
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