| 摘要 |
Crystal appearances of porcelains are produced and expanded by (a) painting a green porcelain graze which consists of 30-40 wt.% feldspar, 10-20 wt.% silicon dioxide, 10-20 wt.% limes, 20-30 wt.% zinc oxide, 5-10 wt.% kaoline, 5-10 wt.% barium carbonate, 5-10 wt.% potassium carbonate, and 0.5-3 wt.% colorant onto raw porcelains, (b) heating up to 1250-1320 deg.C. and cooling, and (c) reheating up to 100-300 deg.C. for 2-10 hours.
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