摘要
用自制分散剂ＭＮ制备了固相含量高达６５ｖｏｌ％的Ａｌ２Ｏ３（ＭｇＯ）浓悬浮体，用该悬浮体成型了Ａｌ２Ｏ３（ＭｇＯ）坯体．其强度、相对密度达到了１８Ｍｐａ和６８％，比等静压成型的坯体分别提高了６倍和７％．添加剂ＭｇＯ可直接加入，但对坯体的强度有损害．水溶性镁盐加入Ａｌ２Ｏ３悬浮体将导致凝固．
The concentrated suspension of Al 2O 3(MgO) with solid volume loating 65% was prepared by using made self dispersant. The green bodies formed by gelcasting have a strength 18Mpa and a raletive density 68%, and respectively increase 6 times and 6% IP's in comparsion with IP's. Aid MgO may derectly join to the suspension but harms green strength. Mgnesium salt hydrates lead the suspension to coagulate, which is due to the neutralize reaction between Mg 2+ and negative ion in MN.
出处
《青岛大学学报（自然科学版）》
CAS
1999年第2期41-45,共5页
Journal of Qingdao University(Natural Science Edition)
