An approach to monitor the real-time deformation during heat treatment of 3D-printed glass
An approach to monitor the real-time deformation during heat treatment of 3D-printed glass
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DOI：
10.1016/j.ceramint.2021.03.334
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发表时间：
2021-06-15
影响因子：
5.2
通讯作者：
Guenster, Jens
中科院分区：
文献类型：
--
作者：
Hmood, Firas J.;Wilbig, Janka;Guenster, Jens
这项研究为更好地控制3D打印生物活性玻璃陶瓷体的烧结/结晶提供了一种工具。用一根横截面为正方形、与水平线倾斜34度的小悬臂梁来监测微晶玻璃体系的粘性流动和烧结/晶化过程。生物活性微晶玻璃的3D打印和烧结在医疗保健应用中具有重要意义。粘性流动确保了典型的低密度印刷坯体的足够致密性，同时结晶防止了结构在重力载荷下坍塌。以BP1(48.4 SiO_2，1B_2O_3，2P_2O_5，36.6 CaO，6.6 K_2O，5.6 Na_2O(摩尔分数))为模型体系，其化学组成与ICIE16相同。此外，还使用了ICIE16作为参比玻璃。结果表明，所提出的设计是一种非常有前途的工具，可以实时跟踪3D打印微晶玻璃样品的变形，并对晶化的开始提供了良好的指示。
This study suggests a tool for a better control on the sintering/crystallization of 3D-printed bioactive glassceramics bodies. A small cantilever in form of a bar with square cross section attached to a base and inclined 34 degrees with the horizon, was used to monitor the viscous flow and sintering/crystallization headway of a glassceramic systems. 3D printing and sintering of bioactive glass-ceramics is of great interest for medical care applications. Viscous flow ensures sufficient densification of the typically low density printed green bodies, while crystallization prevents the structure from collapsing under the gravitational load. As a model system, a bioactive glass called BP1 (48.4 SiO2, 1 B2O3, 2 P2O5, 36.6 CaO, 6.6 K2O, 5.6 Na2O (mol%)), which has a chemical composition based on that of ICIE16, was employed in this work. In addition, ICIE16 was used as a reference glass. The results show that the suggested design is a very promising tool to track the real-time deformation of 3D printed glass-ceramic specimens and gives a good indication for the onset of crystallization as well.