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Preparing method for polishing powder used for polishing of zirconium dioxide ceramic

A technology of ceramic polishing powder and zirconia, which is applied in the direction of polishing compositions containing abrasives, can solve the problems that the wear resistance cannot meet the requirements of zirconia ceramic polishing, and achieve the improvement of polishing friction hardness and median diameter. The effect of small particles and narrow particle size distribution range

Inactive Publication Date: 2015-06-10
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compounding of several oxides can overcome the above-mentioned deficiencies. Chinese patent application CN101362925B discloses a compound polishing powder for polishing optical elements and its preparation method and polishing process. There are 0.5 to 3 parts of dichromium trioxide and 1.0 Part of aluminum oxide, but the wear resistance of this composite polishing powder can not meet the polishing requirements of zirconia ceramics

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A kind of preparation method of zirconia ceramic polishing powder, in reactor, add the cerium nitrate of 8g respectively, the tin chloride of 30g is dissolved in water, then add the calcium carbonate of 8g, the silicon dioxide of 5g, the nitriding of 42g Silicon, stir to form a slurry, then add 7mL of ammonia water while stirring, water is not included in the components, under normal temperature and pressure, stir for 3 hours, separate solid and liquid, wash, roast at 1000 ° C for 10 hours, cool, and then crushed by air flow, The zirconium dioxide ceramic polishing powder is obtained, and the particle size of the obtained zirconium dioxide ceramic polishing powder is within the range of 0.2-2.0 μm.

Embodiment 2

[0026] A kind of preparation method of zirconium dioxide ceramic polishing powder, in reactor, add respectively the cerium nitrate of 6g, the tin chloride of 25g is dissolved in water, then add the calcium carbonate of 13g, the silicon dioxide of 8g, the nitriding of 43g Silicon, stir to form a slurry, then add 6mL of ammonia water while stirring, water is not included in the components, under normal temperature and pressure, stir for 2 hours, separate solid and liquid, wash, roast at 1020°C for 11 hours, cool, and crush by air flow, The zirconium dioxide ceramic polishing powder is obtained, and the particle size of the obtained zirconium dioxide ceramic polishing powder is within the range of 0.2-2.0 μm.

Embodiment 3

[0028] A kind of preparation method of zirconium dioxide ceramic polishing powder, in reactor, add respectively the cerium nitrate of 12g, the tin chloride of 27g is dissolved in water, then add the calcium carbonate of 7g, the silicon dioxide of 4g, the nitriding of 40g Silicon, stir to form a slurry, then add 10mL of ammonia water while stirring, water is not included in the component, under normal temperature and pressure, stir for 4 hours, separate solid and liquid, wash, roast at 1060 ° C for 12 hours, cool, and crush by air flow, The zirconium dioxide ceramic polishing powder is obtained, and the particle size of the obtained zirconium dioxide ceramic polishing powder is within the range of 0.2-2.0 μm.

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Abstract

The invention discloses a preparing method for polishing powder used for polishing of zirconium dioxide ceramic. The preparing method is characterized by comprising the following technological steps: 6%-12% by mass of ceros nitrate is added in a reactor, 22%-32% by mass of stannic chloride is dissolved into water, 6%-13% by mass of calcium carbonate, 3%-7% by mass of silicon dioxide, 38%-48% by mass of silicon nitride are further added, stirring is carried out, seriflux is formed, 3%-10% by mass of ammonium hydroxide is further added during the stirring process, and the sum of the percents, except water, is 100%. Under the normal pressure and temperature, stirring reaction is carried out for 2-4 h, solid-liquid separation is carried out, washing is carried out, calcinations is carried out for 10-12h at the temperature ranging from 1000 DEG C to 1100 DEG C, after cooling is carried out, smashing is carried out through airflow, the polishing powder of the zirconium dioxide ceramic is obtained, and the particle size of the obtained polishing powder of the zirconium dioxide ceramic ranges from 0.2 to 2.0 micrometers. The polishing powder has the advantages of being high in grinding rigidity, good in powder polishing effect, high in glossiness, free of scratch, high in flatness, and low in powdery usage amount.

Description

technical field [0001] The invention relates to the technical field of preparation of polishing powder, in particular to a preparation process of zirconia ceramic polishing powder and its use in zirconia ceramic polishing. Background technique [0002] In terms of structural ceramics, zirconia ceramics are widely used in the field of structural ceramics due to their high toughness, high flexural strength, high wear resistance, excellent heat insulation performance, and thermal expansion coefficient close to steel. Mainly include: Y-TZP grinding balls, dispersing and grinding media, nozzles, ball valve seats, zirconia molds, micro fan shafts, optical fiber pins, optical fiber sleeves, wire drawing dies and cutting tools, wear-resistant knives, watch cases and Watch straps, bracelets and pendants, ball bearings, golf light bats and other room temperature wear-resistant parts, etc. In terms of functional ceramics, its excellent high temperature resistance is used as induction ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09G1/02
CPCC09G1/02
Inventor 李慧芝李冬梅杨春霞
Owner UNIV OF JINAN
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