通过分析粘度、ζ-电位等参数,研究烧结助剂、分散剂、粘结剂等对含有α-氮化硅晶须陶瓷浆料的粘度的影响,并确定了最佳的工艺参数.结果发现:Si3N4悬浮粒子的等电点在pH=4.3,其最佳的ζ-电位在pH=11附近.分散剂的引入有效地提高悬浮粒子的ζ-电位等电点,改善浆料的分散性,最佳分散剂用量在1.9%～2.1%(质量分数)之间.制备了具有一定固相含量,流动性和稳定性良好的适合于流延工艺的陶瓷浆料,成型的膜片具有一定的柔韧性.
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