Preparation method for zirconium oxide porous ceramic artwork

A technology of zirconia ceramics and porous ceramics, applied in the field of zirconia materials, can solve problems such as disadvantage and poor mechanical strength of porous ceramics

Inactive Publication Date: 2016-02-24
DONGGUAN XINBO STRUCTURAL CERAMICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, the porous ceramics prepared by existing methods still have the defect of poor mechanical strength, which is not conducive to the application in ceramic products such as ceramic knives that require high mechanical performance and strength.

Method used

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  • Preparation method for zirconium oxide porous ceramic artwork

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Embodiment Construction

[0023] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific implementations disclosed below.

[0024] like figure 1 As shown, a method for preparing a zirconia porous ceramic handicraft in one embodiment includes the following steps:

[0025] S110: Provide zirconium oxychloride (ZrOCl 2 ) solution, yttrium oxide (Y 2 o 3 ) solution, ammonia (NH 4 OH) solution, polyethylene...

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Abstract

The invention discloses a preparation method for a zirconium oxide porous ceramic artwork. The preparation method comprises the following steps: adding a hydrochloric acid solution in a yttrium oxide solution to generate a yttrium chloride solution; mixing the yttrium chloride solution, a zirconium oxychloride solution and polyethylene glycol, and dropwise adding an aqueous ammonia solution to generate yttrium hydroxide precipitate and zirconium hydroxide precipitate; washing the yttrium hydroxide precipitate and the zirconium hydroxide precipitate with water, filtering, then cleaning with absolute ethyl alcohol and drying to obtain a zirconium oxide ceramic precursor; dispersing the obtained zirconium oxide ceramic precursor in the absolute ethyl alcohol, drying and calcining, and then carrying out ball milling to obtain zirconium oxide ceramic powder; mixing the zirconium oxide ceramic powder, a pore former and a tackifier, and then preparing to obtain an artwork green body; and calcining the artwork green body, and preparing to obtain the zirconium oxide porous ceramic artwork. According to the preparation method for the zirconium oxide porous ceramic artwork, through the pore former and the tackifier, the green body is prepared, and is calcined again to obtain the zirconium oxide porous ceramic artwork with relatively high mechanical performance.

Description

technical field [0001] The invention relates to the technical field of zirconia materials, in particular to a method for preparing zirconia porous ceramic handicrafts. Background technique [0002] At present, ceramic materials generally have a natural porosity, which is determined by factors such as the composition of raw materials, the granular structure of raw materials, and the escape of moisture during drying and firing. This natural porosity may not be sufficient in many applications where it is important, in addition to fire-resistant properties, to ensure good thermal, electrical and mechanical properties and also require weight savings. [0003] A variety of ceramic products have been developed in the prior art with relatively high levels of porosity, the introduction of pores is commonly by means of so-called porogens, i.e. materials that form pores, for example, in the prior art, porogens Commonly obtained as graphite, polymer particles or fibers, etc., the porog...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/48C04B35/622
Inventor 利剑陈兰桂李伟王文利孙亮
Owner DONGGUAN XINBO STRUCTURAL CERAMICS CO LTD
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