Three-dimensional printing of blue-colored zirconia accessories using digital light processing-based stereolithography
Three-dimensional printing of blue-colored zirconia accessories using digital light processing-based stereolithography
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DOI：
10.1080/21870764.2021.1913912
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发表时间：
2021-04
影响因子：
2.3
通讯作者：
Yanhui Li;Shengliang Wang;Minglang Wang;Xinyue Zhang;B. Lu;Yueliang Wang;Dongdong Dong;F. He;Wei Liu;Shanghua Wu
中科院分区：
文献类型：
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作者：
Yanhui Li;Shengliang Wang;Minglang Wang;Xinyue Zhang;B. Lu;Yueliang Wang;Dongdong Dong;F. He;Wei Liu;Shanghua Wu
摘要基于数字光处理(DLP)的立体光刻技术为制造复杂结构的陶瓷配件提供了新的可能性。固化深度是分析陶瓷辅料生产效率的重要指标。正如利用吸收模型预测的那样，光引发剂和染料的吸光度对固化深度有直接影响。本研究采用球磨法制备了由3mol%Y_2O_3稳定的四方氧化锆多晶(3Y-TZP)和CoAl_2O_4粉末组成的蓝色粉末。测量了单层在不同能级下的固化深度，并计算了深度灵敏度SD和临界能量Ec。结果表明，随着CoAl2O4含量的增加，蓝色3Y-TZP粉末的吸光度增加，临界能量EC和深度灵敏度倒数增加1/SD。与纯3Y-TZP相比，固化深度减小，这与CoAl2O4的吸光度有关。此外，还利用DLP方法制备了蓝色附件，并用扫描电子显微镜对附件的微观结构进行了表征。
ABSTRACT Digital light processing (DLP) based stereolithography opens new possibilities for fabricating ceramic accessories with complex structures. The cure depth is a critical criterion for analyzing the production efficiency of ceramic accessories. As predicted using the absorption model, the absorbance from the photoinitiator and dye has a direct effect on the cure depth. In this study, blue-colored powder composed of 3 mol% yttria-stabilized tetragonal zirconia polycrystals (3Y-TZP) and CoAl2O4 powder was prepared through ball-milling. The cure depth of a single layer exposed to varying energy levels was measured, and the values of the depth sensitivity Sd and critical energy Ec were also calculated. The results showed that the absorbance of blue-colored 3Y-TZP powder increased with CoAl2O4 content, which increased the critical energy Ec and depth sensitivity reciprocal 1/Sd . Compared with the pure 3Y-TZP, the cure depth decreased, which was attributable to the absorbance of CoAl2O4. In addition, blue-colored accessories were fabricated using the DLP method, and the microstructures of the accessories were characterized through scanning electron microscopy.