Preparation method of green glaze of Ru porcelain

A technology of celadon and Ru porcelain, applied in the field of preparation of Ru porcelain celadon, can solve the problems of complex colloidal mineral composition and other problems

Active Publication Date: 2014-12-10
JINGDEZHEN CERAMIC INSTITUTE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And these tiny SiO 2 Colloidal particles often have a negative charge, which is easy to produce p

Method used

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  • Preparation method of green glaze of Ru porcelain

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0014] Example 1:

[0015] The raw materials are mixed and ball milled according to the following ratio and passed through a 250-mesh sieve, with a sieve remaining of 0.2%. Glaze on the unfired green body. Use an oxidizing atmosphere before 980°C, and use a reducing atmosphere above 980°C to increase to the highest temperature. After the temperature is 1280℃, keep for 10min, cool to 1120℃ and keep for 0.5h, then rapidly cool to 950℃ and then slowly cool to room temperature.

[0016] The glaze ratio is:

[0017] Yaoli glazed fruit 28%, purple sandstone 10%, lime ash 10%, white agate 12%, calcined kaolin 19%, dolomite 3%, calcite 4%, and feldspar 14%.

[0018] The glaze n(SiO 2 ) / n(Al 2 O 3 )Molar ratio=5.54, n(CaO) / n(MgO) molar ratio=6.18, Fe 2 O 3 The molar number of the glaze is 0.021, the glaze tone is blue and light blue, and the glaze color is lighter.

Example Embodiment

[0019] Example 2:

[0020] The raw materials are mixed and ball milled according to the following raw material ratio and passed through a 250-mesh sieve. The sieve residue is 0.2%. The glaze is applied to the unfired green body. The oxidizing atmosphere is used before 980°C, and the reducing atmosphere is used to increase to the highest value above 980°C. After the temperature point is 1250℃, keep it for 10min, then cool down to 1130℃ and keep it for 0.5h, then rapidly cool to 950℃ and then slowly cool.

[0021] The glaze ratio is:

[0022] Yaoli glazed fruit 20%, purple sandstone 10%, lime ash 7%, white agate 15%, calcined kaolin 14%, dolomite 8%, calcite 6%, feldspar 20%.

[0023] The glaze n(SiO 2 ) / n(Al 2 O 3 )Molar ratio=6.46, n(CaO) / n(MgO) molar ratio=3.35, Fe 2 O 3 The molar number of the glaze is 0.016, the cyan color of the glaze is slightly lighter than that of Example 1, and the blue color is aggravated.

Example Embodiment

[0024] Example 3:

[0025] The raw materials are mixed and ball milled according to the following raw material ratio and passed through a 250-mesh sieve. The sieve residue is 0.2%. The glaze is applied to the unfired green body. The oxidizing atmosphere is used before 980°C, and the reducing atmosphere is used to increase to the highest value above 980°C. After the temperature point is 1270℃, keep it for 10min, cool to 1150℃ and keep it for 0.5h, then quench it to 950℃ and then slowly cool.

[0026] The glaze ratio is:

[0027] Yaoli glazed fruit 35%, purple sandstone 15%, lime ash 12%, white agate 8%, calcined kaolin 12%, dolomite 4%, calcite 2%, and feldspar 12%.

[0028] The glaze n(SiO 2 ) / n(Al 2 O 3 ) Molar ratio=5.78, n(CaO) / n(MgO) molar ratio=5.32, Fe 2 O 3 The number of moles = 0.027, the glaze tone is slightly darker than that of Example 2, and the brightness is decreased.

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Abstract

The invention discloses a preparation method of green glaze of Ru porcelain. By using Jingdezhen local minerals as main raw materials, the glaze is prepared from the following components in percentage by weight: 20-35% of Yaoli glaze pastes, 9-18% of Jiaoyuanwu purple sands, 7-12% of lime-ash soil, 7-15% of white agate, 10-20% of calcined kaolin, 2-8% of dolomite, 2-6% of calcite and 10-20% of feldspar. Steps of proportioning, ball-milling, sieving, biscuit-glazing and firing are carried out to obtain a product. The product is good in decorative effect and strong in sense of art and has wide application prospects.

Description

technical field [0001] The invention belongs to the field of daily-use ceramics, and in particular relates to a preparation method of Ru porcelain celadon. Background technique [0002] Ru official kiln porcelain in the Song Dynasty is famous for its exquisite selection of glaze materials, fine production, clear glaze color, short firing time, and rare handed down from generation to generation. Guan, Ge, Ding, and Jun), so it has also become the focus of long-term attention of archaeologists and ancient ceramics researchers. In the Southern Song Dynasty, Zhou Hui's "Qingbo Magazine" said in volume five: "When Hui came out of Xinjiang, he saw the setter used in it, and the color was lovely... And it was forbidden to burn in the Ru kiln palace. There was agate powder in it as oil (glaze). It is only for the emperor to choose and retreat, and only then is it possible to sell it, which is especially rare in the near future." It shows the prominent status of Ruguan glaze and the...

Claims

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Application Information

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IPC IPC(8): C04B41/86
Inventor 罗婷吴军明丁银忠顾幸勇
Owner JINGDEZHEN CERAMIC INSTITUTE
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