琼脂糖凝胶大分子在陶瓷原位凝固成型中的应用

来源 :硅酸盐学报 | 被引量 : 0次 | 上传用户：mytony

【摘要】

：

研究了一种新的陶瓷原位凝固成型方法,其原理是依据琼脂糖凝胶大分子在水溶液中加热时溶解,冷却时凝固这一物理变化. 对于固相体积分数大于50%陶瓷悬浮体中引入约1%(质量分数

【作者】

：

谢志鹏杨金龙陈亚丽黄勇

【机构】

：

清华大学材料科学与工程系新型陶瓷与精细工艺国家重点实验室

【出处】

：

硅酸盐学报

【发表日期】

：

2004年期

【关键词】

：

琼脂糖氧化铝悬浮体凝胶注模原位成型

【基金项目】

：

国家自然科学基金;

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论文部分内容阅读

研究了一种新的陶瓷原位凝固成型方法,其原理是依据琼脂糖凝胶大分子在水溶液中加热时溶解,冷却时凝固这一物理变化. 对于固相体积分数大于50%陶瓷悬浮体中引入约1%(质量分数)琼脂糖大分子,即可凝胶注模进行各种形状复杂的陶瓷部件成型,获得表面光洁、内部孔隙尺寸和密度分布均匀的陶瓷坯体,并烧结出均匀致密内部无明显缺陷的涡轮转子等异型部件.

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