A comprehensive study on controlled shape formation with high yield of three commercially relevant SiO₂-based amorphous glasses in a stirred media mill is presented. Stressing under well-controlled conditions leads to micron-sized amorphous glass flakes with high aspect ratios. This unique result is quite contrary to the fundamental observation that comminution processes generally result in irregular shaped particles. The influences of glass composition, processing time, stirrer tip speed and grinding media size on the obtained products have been investigated. The size and shape of the obtained glass flakes have been characterized by scanning electron microscopy and atomic force microscopy. The glass flakes exhibit thicknesses as low as 155 nm while the lateral dimensions are well within the micrometer range. Our study shows that particle size reduction occurs within the first hour of grinding. Afterwards plastic deformation of the fragments, which can be accompanied by densification of the glass network, leads to the formation and further thinning of the glass flakes. To demonstrate the quality and applicability of the glass flakes interference pigments were realized by a TiO₂ coating via an aqueous titration process. The presented approach offers a simple, convenient and fully scalable top-down method to produce flake-like particles from various silica glasses. The obtained flakes are suitable substrates for further modifications and applications and the process can be transferred to other materials and glasses with tailor-made chemical compositions.

三种与商业相关的SiO _2的高产率可控形状形成的综合研究提出了在搅拌介质研磨机中的非晶体玻璃。在良好控制的条件下施加应力会导致具有高长宽比的微米级无定形玻璃鳞片。这种独特的结果完全与基本观察结果相反，即粉碎过程通常会产生不规则形状的颗粒。研究了玻璃组成，加工时间，搅拌器尖端速度和研磨介质尺寸对所得产品的影响。所获得的玻璃鳞片的尺寸和形状已经通过扫描电子显微镜和原子力显微镜表征。玻璃鳞片的厚度低至155 nm，而横向尺寸则在微米范围内。我们的研究表明，粒度减小在研磨的第一个小时内发生。之后碎片发生塑性变形，这可能伴随着玻璃网络的致密化，导致玻璃鳞片的形成和进一步变薄。为了证明玻璃鳞片的质量和适用性，通过TiO实现了干涉颜料₂通过水滴定法进行包衣。提出的方法提供了一种简单，方便且完全可扩展的自上而下的方法，可以从各种石英玻璃生产薄片状颗粒。所获得的薄片是用于进一步修饰和应用的合适基材，并且该方法可以转移到具有定制化学组成的其他材料和玻璃中。