摘要
文章把光固化技术应用于陶瓷成形,提出了一种新型的直接陶瓷成形工艺-陶瓷光固化工艺。通过实验研究发现,陶瓷浆料粘度、固化厚度对陶瓷素坯的成形过程有决定性作用;陶瓷粉末的体积分数决定了陶瓷素坯的收缩率。为减少陶瓷素坯收缩率,必须提高陶瓷粉末的体积分数。实验表明,陶瓷浆料粘度小于3000MPa·s,固化厚度大于200μm,能够满足该工艺的要求。陶瓷粉末体积分数大于40%,能够得到低收缩率的陶瓷零件。
This paper presents a novel direct ceramic shaping process-ceramic stereolithography by applying stereolithography in the ceramic shaping process. Through investigation based on experiments, it were found that viscosity and cured depth of ceramic suspensions play a decisive role in the building of green ceramic parts and the volume fraction of ceramic powder has a influence on the shrinkage of green ceramic parts. In order to reduce the shrinkage of green ceramic parts, the volume of ceramic powder in the suspension must be increased. The experimental results that ceramic suspension will meet the requirement of ceramic stereolithography process when the viscosity of suspension is lower than 3000MPa · s and the cured depth of suspension is greater than 200μm. A ceramic part with low shrinkage can be built successfully if the volume fraction of ceramic powder is higher than 40%.
出处
《塑性工程学报》
CAS
CSCD
北大核心
2009年第3期198-201,共4页
Journal of Plasticity Engineering
基金
国家973项目(2007CB707704)
长江学者和创新团队发展计划资助(IRT0646)
西安交通大学与波音公司国际合作项目
陕西省自然科学基金资助项目(SJ08E110)
关键词
光固化
陶瓷浆料
粘度
固化厚度
Stereolithography
ceramic suspensions
viscosity
cured depth
