明胶体系凝胶注模成形氧化铝素坯  

Alumina Green Bodies Gelcasting by Using Glutin-urea System

作　　者：许保华[1] 王金锋[1] 

机构地区：[1]河北理工大学轻工学院,河北唐山063000

出　　处：《陶瓷》2011年第13期19-20,共2页Ceramics

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 8.26 MPa bending-strength when the dose of urease was 20 iu.

关 键 词：明胶 尿素 尿酶 

分 类 号：TQ174.75[化学工程—陶瓷工业]