明胶体系凝胶注模成形氧化铝素坯

摘要

采用明胶—尿素体系进行凝胶注模成形,制备了固相体积分数为53%的氧化铝陶瓷料浆悬浮体,利用尿酶将尿素分解,使明胶重新获得氢键形成能力,在尿酶用量为20单位时,室温下制备了抗弯强度为8.26 MPa的氧化铝陶瓷材料。%Glutin-urea system was used in alumina green bodies gclcasting.And Al_2O_3 suspension was prepared with 53vol%solid loading.Urea was decomposed by using urease therefore it was possible that hydrogen bond could be rebuilt.Al_2O_3 bodies were prepared with