SBIR Phase I: Powder Porcessing Routes for Making Submicron Hydrotalcite and Zirconia-Glass Materials

这个小企业创新研究（SBIR）一期项目是通过无溶剂加工路线生产两亚微米无机粉末的可行性研究。其中一种材料是被称为水滑石的阴离子粘土，它被用作抗酸剂和PVC添加剂。另一种材料是玻璃-氧化锆复合材料，它是制造玻璃陶瓷牙科材料的有前途的候选材料。结构-功能关系表明，这两种粒径在1微米或1微米以下的无机粉末的生产应该转化为比市售形式性能更好的材料。对于这两种目标材料，相对于当前制造方法的关键优势在于加工步骤简单；无溶剂制造;和成本。机械化学生产的亚微米粉末也应该与更奇特的合成导致纳米级粉末有利竞争。

This Small Business Innovation Research (SBIR) Phase I project is a feasibility study to produce two-submicron inorganic powders via solvent-free processing routes. One of the materials is the anionic clay known as hydrotalcite, which is used as an antacid and a PVC additive. The other material is a glass-zirconia composite, which is a promising candidate for making glass-ceramic dental materials. Structure-function relationships suggest that production of these two types of inorganic powders in particle sizes at or below one micron should translate into materials with improved performance over commercially available forms. For both target materials, the key advantages over current manufacturing methods are simplicity in terms of the processing steps; solvent-free manufacturing; and cost. Mechanochemical production of submicron powders should also compete favorably with more exotic syntheses leading to nanosized powders.