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Zirconium oxide ceramic material of ytterbium oxide and yttrium oxide costabilize

A technology of zirconia ceramics and stabilized zirconia, which is applied in the field of zirconia-based ceramic products and preparation, which can solve the problems of affecting mechanical properties and not being able to obtain TZP ceramics, so as to avoid hard agglomeration, avoid powder particle growth, and reduce dosage Effect

Inactive Publication Date: 2007-10-03
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, reducing Y 2 o 3 The content usually causes a phase change during cooling and cannot obtain TZP ceramics; increase Y 2 o 3 The content will affect its mechanical properties to a certain extent

Method used

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  • Zirconium oxide ceramic material of ytterbium oxide and yttrium oxide costabilize
  • Zirconium oxide ceramic material of ytterbium oxide and yttrium oxide costabilize
  • Zirconium oxide ceramic material of ytterbium oxide and yttrium oxide costabilize

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Example 1 ytterbium oxide (Yb) with a purity of not less than 99.9% 2 O 3 ), yttrium oxide (Y 2 O 3 ) And monoclinic zirconia powder (the average grain size is less than 100 nanometers) as raw materials, the design finally obtains ytterbium oxide (Yb) in TZP ceramics 2 O 3 ) The mole percentage is 1.0%, yttrium oxide (Y 2 O 3 ) The mole percentage is 1.0%. According to the above composition ratio, select the appropriate amount of the corresponding compound, and the ytterbium oxide (Yb 2 O 3 ) And yttrium oxide (Y 2 O 3 ) Dissolve in an appropriate amount of nitric acid to obtain a clear solution, use Y-TZP balls as a ball milling medium, mix with monoclinic zirconia powder with an average grain size of less than 100 nanometers in absolute ethanol and ball mill for 24 hours. After ball milling, the suspension was dried with a rotary evaporator to obtain a precursor that encapsulated the powder. The precursor was calcined in the air at 300° C. for 1 hour to obtain zirconia na...

Embodiment 2

[0025] Example 2 Design and finally obtain ZrO 2 Ytterbium oxide (Yb 2 O 3 ) The mole percentage is 2.0%, yttrium oxide (Y 2 O 3 ) The mole percentage is 1.0%, the powder is synthesized according to the method of Example 1 to prepare ceramics, and the sintering time is 1 hour. Prepared ZrO 2 The mechanical properties of ceramics are shown in Figure 3.

Embodiment 3

[0026] Example 3 Design and finally obtain ZrO 2 Ytterbium oxide (Yb 2 O 3 ) The mole percentage is 3.0%, yttrium oxide (Y 2 O 3 ) The mole percentage is 1.0%, the powder is synthesized according to the method of Example 1 to prepare ceramics, and the sintering time is 1 hour. Prepared ZrO 2 The mechanical properties of ceramics are shown in Figure 3.

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Abstract

A Yb2O3 and Y2O3 stabilized zirconium oxide-type ceramic material is prepared from the zirconium oxide nanoparticles through coating by Yb2O3 and Y2O3, and non-pressure sintering to obtain tetragonal zirconium oxide polycrystal (TZP) ceramics and full-stable cubic zirconium oxide (FSZ) ceramics.

Description

[0001] (This application is a divisional application of the application date of March 3, 2006, the application number is 200610024361.5, and the title of the invention is "Ytterbium oxide and yttrium oxide co-stabilized zirconia ceramic material and preparation method") Technical field [0002] The invention relates to tetragonal zirconia polycrystalline (TZP) and fully stabilized zirconia ceramics (FSZ) co-stabilized with ytterbium oxide and yttrium oxide and a preparation method. More precisely, it provides a kind of ytterbium oxide (Yb 2 O 3 ), yttrium oxide (Y 2 O 3 ) And monoclinic zirconia powder as raw materials, the powder is prepared by wrapping technology, and under low stabilizer content, through pressureless sintering to achieve densification to obtain TZP ceramics with excellent mechanical properties and fully stabilized zirconia ceramics with electrical properties ( FSZ) and its preparation method belong to the field of zirconia-based ceramic products and preparation ...

Claims

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Application Information

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IPC IPC(8): C04B35/48C04B35/626
Inventor 阚艳梅王佩玲约瑟夫・务伦杰奥默・范德比斯特
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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