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Celadon glaze and preparation method thereof

A celadon, basic technology, applied in the field of celadon glaze and its preparation, can solve the problem of uneven glaze color, achieve the effect of stable glaze color, energy saving, and enhanced jade texture

Active Publication Date: 2014-03-19
SHANDONG GUIYUAN ADVANCED CERAMICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a celadon glaze and its preparation method, which solves the problems of smoke and uneven glaze color caused by improper atmosphere control during the celadon glaze firing process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The weight percent of celadon glaze raw material consists of:

[0027] Quartz 37%, Suzhou soil 7%, potassium feldspar 26%, albite 10%, stalactite 18%, talc 2%, copper oxide 0.4% and iron oxide 0.15%.

[0028] The preparation steps are:

[0029] First, ingredients, using one-time grinding, wet ball milling process, material: ball: water = 1:1.8:0.6, ball milling until the glaze slurry particle size is less than 10μm accounts for 65%;

[0030] Second, the glaze is glazed by dipping, and the thickness of the glaze layer is between 2mm;

[0031] Third, firing in an oxidizing atmosphere, heating system: room temperature~600°C, heating rate is 3.5°C / min; 600~1000°C, heating rate is 4.5°C / min; 1000~1270°C, heating rate is 3.5°C / min , 1270 ° C for 6 minutes.

Embodiment 2

[0033] The weight percent of celadon glaze raw material consists of:

[0034] Quartz 29%, Suzhou soil 15%, potassium feldspar 20%, albite 14%, stalactite 12%, talc 2%, copper oxide 0.4%, iron oxide 0.2% and zirconia 1.1%.

[0035] The preparation steps are:

[0036] First, ingredients, using one-time grinding, wet ball milling process, material: ball: water = 1:1.8:0.6, ball milling until the glaze slurry particle size is less than 10μm accounts for 70%;

[0037] Second, the glaze is glazed by dipping, and the thickness of the glaze layer is between 1mm;

[0038] Third, firing in an oxidizing atmosphere. Among them, the heating system is the first stage from room temperature to 600°C, and the heating rate is 3.5°C / min; the second stage is 600~1000°C, and the heating rate is 4.5°C / min; the third stage is 1000~1240°C, and the heating rate is 3.5°C / min, 1230°C for 7min.

Embodiment 3

[0040] The weight percent of celadon glaze raw material consists of:

[0041] Quartz 34%, Suzhou soil 10%, potassium feldspar 24%, albite 13%, stalactite 13%, talc 2%, copper oxide 0.5%, iron oxide 0.15% and tin oxide 0.9%.

[0042] Preparation steps:

[0043] First, ingredients, using one-time grinding, wet ball milling process, material: ball: water = 1:1.8:0.6, ball milling until the glaze slurry particle size is less than 10μm accounts for 75%;

[0044] Second, the glaze is applied by spraying glaze, and the thickness of the glaze layer is between 1.2mm;

[0045] Third, firing in an oxidizing atmosphere. Among them, the heating system is the first stage room temperature ~ 600 ℃, the heating rate is 3.5 ℃ / min; the second stage is 600 ~ 1000 ℃, the heating rate is 4.5 ℃ / min; the third stage is 1000 ~ 1260 ℃, the heating rate is 3.5 ℃ / min, Insulate at 1260°C for 10 minutes.

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Abstract

The invention discloses a celadon glaze and a preparation method thereof, belonging to the technical field of ceramics. The celadon glaze contains the raw materials of, in by weight percent: 27-38% of quartz, 7-15% of Suzhou soil, 18-27% of potash feldspar, 6-14% of soda feldspar, 12-20% of stalactite, 1-2% of steatite, 0.4-0.5% of copper oxide and 0.15-0.25% of ferric oxide. The celadon glaze is prepared by sintering in oxidizing atmosphere and the preparation method includes the steps of: firstly, proportioning the raw materials, and milling the materials through one-off feeding and wet ball milling technology until the particles of the glaze slip with the size less than 10 micrometers accounts for 65-75%; secondly, glazing, with the thickness of the enamel layer being 1-2mm; and thirdly, sintering under oxidizing atmosphere. The preparation method disclosed by the invention is simple in operation, saves energy and reduces the emission of harmful gases. The celadon glaze produced through the preparation method is stable in glaze color and high in yield.

Description

technical field [0001] The invention belongs to the technical field of ceramics, and relates to a celadon glaze and a preparation method thereof. Background technique [0002] The production of traditional Chinese celadon is mainly achieved through the control of the reducing atmosphere stage. During the firing process, the ferric iron in the glaze layer is partially reduced to ferrous iron according to the strength of the reducing atmosphere. The different ion content shows different shades similar to pink green, shadow green, plum green and holly. During the entire firing process, the atmosphere in the reduction stage is difficult to control, which can easily lead to varying degrees of deviation in the glaze color of the product, smoke and carbon deposits, and the yield of finished products is low. Contents of the invention [0003] The purpose of the present invention is to provide a celadon glaze and its preparation method, which solves the problems of smoke and uneve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B41/86
Inventor 任允鹏岳剑桑爱美齐志红陈化东
Owner SHANDONG GUIYUAN ADVANCED CERAMICS
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