Method for producing zirconia-alumina composite ceramic material, zirconia-alumina composite granulated powder, and zirconia beads

A composite ceramic and manufacturing method technology, applied in the fields of nanotechnology, thin material processing, nanotechnology, etc. for material and surface science, can solve problems such as particle size control, achieve suppression of particle overflow, excellent wear resistance and The effect of hardness

Inactive Publication Date: 2012-10-03
PANASONIC HEALTHCARE HLDG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to selectively control the particle size by using the conventional in-liquid granulation method

Method used

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  • Method for producing zirconia-alumina composite ceramic material, zirconia-alumina composite granulated powder, and zirconia beads
  • Method for producing zirconia-alumina composite ceramic material, zirconia-alumina composite granulated powder, and zirconia beads
  • Method for producing zirconia-alumina composite ceramic material, zirconia-alumina composite granulated powder, and zirconia beads

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～5 and comparative example 1～4）

[0084] As the first powder for providing the first phase formed of zirconia particles, a stabilizer containing 12 mol % of ceria and 0.04 mol % of titanium dioxide and having a specific surface area of ​​15 m 2 g -1 of tetragonal zirconia powder.

[0085] As the second powder for providing the second phase formed of alumina particles, a powder with a specific surface area of ​​55 m was used which was produced by the gas phase method (laser ablation method). 2 g -1 And a mixture of spherical γ-alumina powder with an average particle size of 0.03 μm and α-alumina powder with an average particle size of 0.1 μm.

[0086] The first powder and the second powder were mixed, 100 parts by volume of water was added to 100 parts by volume of the mixture to prepare a slurry, and the first powder and the second powder were mixed and pulverized in the slurry. The particle size distribution of the first powder and the second powder in the obtained slurry was measured using SALD2000 (laser...

Embodiment 6）

[0096] As the first powder for providing the first phase formed of zirconia particles, a stabilizer containing 12 mol % of ceria and 0.04 mol % of titanium dioxide and having a specific surface area of ​​15 m 2 g -1 of tetragonal zirconia powder. The content of the tetragonal zirconia powder is 100% by volume, and the average particle diameter is within the range of 0.3 to 0.5 μm.

[0097] As the second powder for providing the second phase formed of alumina particles, a powder with a specific surface area of ​​55 m was used which was produced by the gas phase method (laser ablation method). 2 g -1 And a mixture of spherical γ-alumina powder with an average particle size of 0.03 μm and α-alumina powder with an average particle size of 0.1 μm. In the second powder, the mass ratio of α-alumina powder:γ-alumina powder was 70:30. That is, the compounding quantity of the γ-alumina powder was 42.9 mass % with respect to the α-alumina powder. The average particle size of the sec...

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Abstract

Provided is a method for producing a zirconia-alumina composite ceramic material which has excellent abrasion resistance and hardness, and which prevents chipping of particle edges. The zirconia-alumina composite ceramic material has a composite structure of zirconia particles dispersed in alumina particles and alumina particles dispersed in zirconia particles. A first phase is formed of zirconia particles containing ceria and a second phase is formed of alumina particles. a-alumina powder having an average grain size of 0.1 [mu]m or larger and gamma-alumina powder having an average grain size of 0.01 to 0.1 [mu]m are used at a mass ratio of 85:15 to 65:35 as alumina powder for producing the alumina particles of the second phase.

Description

technical field [0001] The present invention relates to a method for producing a zirconia-alumina composite ceramic material having wear resistance, hardness, grain overflow suppression, strength, and toughness. Furthermore, the present invention relates to zirconia-alumina composite granulated powder and zirconia beads obtained from zirconia-alumina composite granulated powder. Background technique [0002] Compared with metal materials and plastic materials, ceramic materials have excellent properties such as hardness, wear resistance, heat resistance, and corrosion resistance. However, in a wide range of fields such as mechanical parts such as automobiles, airplanes, and spaceships; knives including drills and medical scalpels; medical appliances; biological material parts such as artificial joints and artificial teeth, ceramic materials are used under strict conditions. used. When applied to these fields, it is desired to develop a high-level ceramic material having a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/48
CPCC04B2235/5445C04B2235/5409C04B35/6261C04B2235/3206C04B2235/3232C04B2235/3229C04B2235/3217C04B2235/765C04B35/486C04B2235/5472C04B2235/5454C04B2235/77C04B2235/96C04B35/62685C04B2235/785B82Y30/00C04B2235/322C04B2235/3208C04B2235/3246C04B2235/528C04B2235/604C04B35/4885C04B2235/656C04B2235/94C04B2235/3225Y10T428/2982C04B35/10C04B35/106C04B35/48C04B35/645
Inventor 栗副直树末广康彦中西秀雄
Owner PANASONIC HEALTHCARE HLDG CO LTD
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