The invention relates to celeste blue
glaze and a preparation method thereof. The celeste blue
glaze is prepared from, by
mass, 48-51 parts of
melilite, 14-16 parts of
drug, 14-16 parts of
calcite, 11-13 parts of
quartz, 5-8 parts of
talc and 0.4-0.6 part of
bone ash; the preparation method for the celeste blue
glaze comprises the following steps that S1, the raw materials are weighed according tothe matching ratio, water is added into a ball grinder for
grinding the raw materials, after
grinding, the ground raw materials are sieved by a
sieve, and glaze paste is obtained; S2, blank bodies are manually soaked in the glaze paste; S3, the blank bodies are placed in a
kiln for firing and heated for 3 h at the 300 DEG C / h speed under an oxidizing
atmosphere to 900 DEG C, after the temperatureis kept for 3 h, the heating speed is controlled to be 55 DEG C / h, the temperature reaches 1020 DEG C, after the temperature is kept for 2 h, the heating speed is controlled to be 110 DEG C / h, undera
reducing atmosphere, the blank bodies are heated to 1240 DEG C, after the temperature is kept for 0.5 h, the blank bodies are cooled naturally, and the celeste blue glaze is obtained; by adopting the formula and the preparation method, the fired jun porcelain glaze color is bright and smooth, and the glaze is bright, high in artistic value, wear-resisting,
solid and durable; the optical propertyof the
melilite is sage green, yellow and brownness, and a thin
melilite piece is colorless.