关键词: 负离子粉;电气石;麦饭石;骨质瓷坯料性能

Abstract: Negative ion powder , tourmaline and medical stone were added in bone china blank .The effect of negative ion materials on the properties of bone china were discussed , and the negative ion materials and the addition were confirmed . Studying the influence of negative ion materials on the relative viscosity , thixotropy and gravity of slurry when added several negative ion materials to bone china glaze , the experimental results showed that the relative viscosity and thixotropy increased and the gravity decreased .It was obvious that medical stone caused firing shrinkage of the products .The electronegative ion realeasing concentration of the products increased when the addition of negative ion materials increased, and the influence of negative ion powder was most obvious .Whiteness of the products gradually decreased when the addition of negative ion materials .At the same negative ion materials content , the whiteness of the products which was added to negative ion powder was higher .When to bone china glaze were added several negative ion materials can release negative ions after glaze .

Key words: negative ion powder;tourmaline;medical stone;property of bone china blank