In-situ generated mullite whisker reinforced ceramic green body and preparation method thereof

A technology for mullite whiskers and ceramic bodies, applied in the field of ceramic materials, can solve problems such as thick thickness, achieve uniform morphology, reduce fuel consumption, and high aspect ratio

Active Publication Date: 2022-04-22
JINGDEZHEN CERAMIC INSTITUTE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The thickness of building sanitary ceramic products in the prior art is about 8-14mm, which is relatively thick; the flexural strength is 50-70MPa, which is generally low

Method used

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  • In-situ generated mullite whisker reinforced ceramic green body and preparation method thereof
  • In-situ generated mullite whisker reinforced ceramic green body and preparation method thereof
  • In-situ generated mullite whisker reinforced ceramic green body and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] 1. In this embodiment, an in-situ-generated mullite whisker-reinforced ceramic body is composed of raw materials: 75wt% of the basic blank, 2wt% of spodumene, 7wt% of bauxite, and 16wt% of andalusite. The particle size is 100 mesh. Among them, the raw material composition of the basic blank is 22wt% of porcelain stone, 19wt% of potassium feldspar, 32wt% of kaolin, 8wt% of black mud, 6wt% of washed mud, 12wt% of white mud, and 1wt% of talc.

[0021] 2. The above-mentioned in-situ generation of mullite whisker-reinforced ceramic green body preparation method in this embodiment, the steps are as follows:

[0022] (1) After mixing the above-mentioned base material, spodumene, bauxite and andalusite, carry out wet ball milling for 30 minutes (material: ball: water = 1:2:1), and the resulting slurry is put into an oven at a temperature of 100°C Drying for 20 hours, and then granulating the powder after passing through a 100-mesh sieve to obtain the granulated material;

[0...

Embodiment 2

[0025] 1. In this embodiment, an in-situ-generated mullite whisker-reinforced ceramic blank is composed of raw materials: 80wt% of basic blank, 1wt% of spodumene, 4wt% of bauxite, and 15wt% of andalusite. The particle size is 100 mesh. Among them, the raw material composition of the basic blank is 22wt% of porcelain stone, 19wt% of potassium feldspar, 32wt% of kaolin, 8wt% of black mud, 6wt% of washed mud, 12wt% of white mud, and 1wt% of talc.

[0026] 2. The above-mentioned in-situ generation of mullite whisker-reinforced ceramic green body preparation method in this embodiment, the steps are as follows:

[0027] (1) After mixing the above-mentioned base material, spodumene, bauxite and andalusite, carry out wet ball milling for 30 minutes (material: ball: water = 1:2:1), and the resulting slurry is put into an oven at a temperature of 100°C Drying for 20 hours, and then granulating the powder after passing through a 100-mesh sieve to obtain the granulated material;

[0028...

Embodiment 3

[0030] 1. In this embodiment, an in-situ-generated mullite whisker-reinforced ceramic blank is composed of raw materials: 70wt% of the basic blank, 4wt% of spodumene, 7wt% of bauxite, and 19wt% of andalusite. The particle size is 100 mesh. Among them, the raw material composition of the basic blank is 22wt% of porcelain stone, 19wt% of potassium feldspar, 32wt% of kaolin, 8wt% of black mud, 6wt% of washed mud, 12wt% of white mud, and 1wt% of talc.

[0031] 2. The above-mentioned in-situ generation of mullite whisker-reinforced ceramic green body preparation method in this embodiment, the steps are as follows:

[0032] (1) After mixing the above-mentioned base material, spodumene, bauxite and andalusite, carry out wet ball milling for 30 minutes (material: ball: water = 1:2:1), and the resulting slurry is put into an oven at a temperature of 100°C Drying for 20 hours, and then granulating the powder after passing through a 100-mesh sieve to obtain the granulated material;

[...

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Abstract

The invention discloses an in-situ generated mullite whisker reinforced ceramic green body. The ceramic green body comprises the following raw materials: 70-80 wt% of a basic blank, 1-5 wt% of spodumene, 3-8 wt% of bauxite and 10-20 wt% of andalusite, the basic blank is prepared from the following raw materials: 21 to 24 weight percent of chinastone, 18 to 22 weight percent of potassium feldspar, 30 to 34 weight percent of kaolin, 6 to 11 weight percent of black mud, 4 to 7 weight percent of washing mud, 10 to 14 weight percent of white mud and 1 to 3 weight percent of talc. In addition, the invention also discloses a preparation method of the in-situ generated mullite whisker reinforced ceramic body. By optimizing a formula system, formation of a large number of mullite crystals can be promoted, so that the breaking strength of the ceramic green body is effectively improved, the thickness of a product is reduced, and thin-wall light weight of the building sanitary ceramic green body is realized.

Description

technical field [0001] The invention relates to the technical field of ceramic materials, in particular to a building sanitary ceramic body and a preparation method thereof. Background technique [0002] my country is a large country of ceramics production. The output of the three traditional ceramics for daily use, construction and hygiene ranks first in the world. Among them, the output of building and sanitary ceramics also accounts for half of the world's total output. Its production needs to consume a lot of mineral resources and fuel every year. Energy, and the greater the thickness, the greater the quality, the greater the consumption of raw materials and energy. Therefore, the architectural sanitary ceramics industry is still a "three-high industry" with high pollution, high energy consumption, and high resource consumption. The establishment of a technologically innovative energy-saving and emission-reducing green ceramic production model has far-reaching significanc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B33/36C04B33/13C04B33/32
CPCC04B33/36C04B33/13C04B33/32C04B2235/5276C04B2235/3463C04B2235/3217C04B2235/3472C04B2235/3203C04B2235/5427C04B2235/6562C04B2235/6567
Inventor 梁健仝元东江伟辉唐小勇陈拥强洪翔汪志良戚芳王松
Owner JINGDEZHEN CERAMIC INSTITUTE
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