Lawrence Livermore National Laboratory, Livermore, CA, 94550, USA.
Department of Earth Sciences, University of Minnesota, Minneapolis, MN, 55455, USA.
Adv Mater. 2017 Jul;29(26). doi: 10.1002/adma.201701181. Epub 2017 Apr 28.
Silica inks are developed, which may be 3D printed and thermally processed to produce optically transparent glass structures with sub-millimeter features in forms ranging from scaffolds to monoliths. The inks are composed of silica powder suspended in a liquid and are printed using direct ink writing. The printed structures are then dried and sintered at temperatures well below the silica melting point to form amorphous, solid, transparent glass structures. This technique enables the mold-free formation of transparent glass structures previously inaccessible using conventional glass fabrication processes.
开发出了硅基墨水，可以通过 3D 打印和热加工来生产具有亚毫米特征的光学透明玻璃结构，其形状从支架到整体式结构都有。这些墨水由悬浮在液体中的二氧化硅粉末组成，并使用直接墨水书写进行打印。然后，将打印结构干燥并在远低于二氧化硅熔点的温度下烧结，形成非晶态、固态、透明的玻璃结构。这项技术使得以前无法使用传统玻璃制造工艺来制造的透明玻璃结构能够无模形成。
