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Crystalline alumina short fiber toughened Longquan celadon kiln grouting material and preparation method thereof

The technology of grouting material and alumina is applied in the field of grouting material for toughening Longquan celadon kiln by crystalline alumina short fibers and its preparation field, which can solve the problems of low refractoriness of fibers, high content of flux raw materials, easy melting of fibers, etc. achieve good mechanical properties

Active Publication Date: 2020-10-09
LONGQUAN JINHONG PORCELAIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] CN201610498546.3 discloses a high-strength daily-use ceramics. The composition of the daily-use ceramics includes 5-10 parts of ceramic fibers and 10-15 parts of aluminum silicate fibers. This method of adding two-component fibers is possible to a certain extent Improve the strength, toughness and impact resistance of ceramics, but the fibers added to the raw materials in this patent have low refractoriness, while the firing temperature of celadon is high, and the content of flux raw materials is high, so the added fibers are easy to melt and lose the effect of strengthening and toughening

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A crystalline alumina short fiber toughened Longquan celadon kiln grouting material. The grouting material is mixed and stirred at high speed by adding 70kg of kiln powder, 15kg of crystalline alumina short fiber, 0.5kg of water glass, and 35kg of water into a roller mill. Prepared by dispersing for 2 hours, the water content of the prepared grouting material is 35%, and the flow time of 100ml mud hydrometer is 60-65 seconds. The length of short crystalline alumina fibers added is less than 1mm, and the fracture toughness is 4-4.5MPa.m 1 / 2 . The added water glass is liquid water glass.

[0023] Among them, the said brother kiln powder is made of the following raw materials: Baoxi porcelain clay 40kg, Badu porcelain clay 32kg, Huangshixuan 18kg, purple gold clay 5kg, quartz 5kg. The preparation method of the kiln powder is as follows: according to the kiln raw material: ball stone: water = 1:1.8:0.75 ratio of Longquan celadon kiln mud, ball millstone, water into the ba...

Embodiment 2

[0026] A crystalline alumina short fiber toughened Longquan celadon kiln grouting material, the grouting material consists of 60kg kiln powder, 8kg crystalline alumina short fiber, 3kg graphite fiber, 0.4kg water glass, and 32kg water into a rolling mill It is prepared by mixing and stirring at medium and high speed for 2 hours. The water content of the prepared grouting material is about 35%, and the flow time of 100ml mud hydrometer is 60-65 seconds. The length of short crystalline alumina fibers added is less than 1mm, and the fracture toughness is 4-4.5MPa.m 1 / 2 The added graphite fibers are mixed with graphite fibers with a fiber length of 0.1-0.3 mm and graphite fibers with a fiber length of 0.5-0.8 mm at a mass ratio of 1:3; the added water glass is liquid water glass.

[0027] Among them, the said brother kiln powder is made of the following raw materials: 41kg of Baoxi porcelain clay, 32kg of Badu porcelain clay, 18kg of Huangshixuan, 6kg of purple gold clay, and 6kg ...

Embodiment 3

[0030] A crystalline alumina short fiber toughened Longquan celadon kiln grouting material, the grouting material is made of 50kg kiln powder, 5kg crystalline alumina short fiber, 2kg graphite fiber, 0.2kg water glass, and 30kg water into a rolling mill It is prepared by mixing and stirring at medium and high speed for 2 hours. The water content of the prepared grouting material is 30-35%, and the flow time of 100ml mud hydrometer is 60-65 seconds. The length of short crystalline alumina fibers added is less than 1mm, and the fracture toughness is 4-4.5MPa.m 1 / 2 The added graphite fibers are mixed with graphite fibers with a fiber length of 0.1-0.3 mm and graphite fibers with a fiber length of 0.5-0.8 mm at a mass ratio of 1:3; the added water glass is liquid water glass.

[0031] Among them, the said brother kiln powder is made of the following raw materials: Baoxi porcelain clay 40kg, Badu porcelain clay 32kg, Huangshixuan 18kg, purple gold clay 5kg, quartz 5kg. The prepara...

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Abstract

The invention relates to a crystallized alumina short fiber toughened Longquan celadon Di kiln grouting material. The grouting material is mainly prepared from, by weight, 50-70 parts of Di kiln powder, 0.5-15 parts, preferably 5-8 parts of crystallized alumina short fibers, 0-3 parts, preferably 2-3 parts of graphite fibers, 0.2-0.5 part of water glass and 30-35 parts of water. The crystallized alumina short fibers are added to a suitable proportion of the Di kiln powder, and the graphite fibers and a proper amount of the water glass are also used, so the integral strength and the toughness of the grouting material are effectively improved. Longquan celadon made from the Longquan celadon Di kiln grouting material have good mechanical performances, and the room-temperature bending strength of the Longquan celadon reaches 70 MPa, and is 48.9% higher than the average bending strength (47 MPa) of Longquan celadon made from common Longquan celadon mud.

Description

technical field [0001] The invention relates to the field of daily-use ceramics, in particular to a crystalline alumina short fiber toughened Longquan celadon kiln grouting material and a preparation method thereof. Background technique [0002] For all kinds of ceramic products, they have a common problem of brittleness, and Longquan celadon is no exception. During daily use, under certain external loads, Longquan celadon products are easy to crack or even break, which not only reduces the practicability, but also reduces the safety of use. Therefore, toughening and modifying Longquan celadon materials is a must. research work. [0003] At present, the methods of ceramic toughening include phase change toughening, long fiber toughening, short fiber toughening, whisker toughening, particle toughening, etc. Short fiber toughening has the advantages of easy raw material preparation and good toughening effect, and has been widely used in the field of ceramic toughening. [0...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B33/36C04B33/13
CPCC04B33/13C04B33/36C04B2235/3201C04B2235/3418C04B2235/3427C04B2235/5224C04B2235/5248C04B2235/96
Inventor 张鹤金逸林吴艳芳兰俊杰吴祥建邱振江罗应裕
Owner LONGQUAN JINHONG PORCELAIN