作　　者： (郭亮）; ; (张庆茂）;

机构地区： 华南师范大学

出　　处： 《应用激光》 2020年第6期1040-1044,共5页

摘　　要： 传统的陶瓷成型工艺存在着材料利用率低、能量消耗高等问题。为此,本文利用数字光处理(DLP)3D打印技术,制备了精细、复杂结构氧化锆陶瓷。实验配置了固相质量分数72.5%的陶瓷-光敏树脂浆料,以紫外光为光源,使浆料逐层固化,叠加成型。实验还研究了曝光时间、曝光强度等因素对固化深度的影响,优化后的陶瓷浆料表现出良好的固化效率与成型精度。最后本文还研究了烧结温度对陶瓷器件致密度以及维氏硬度的影响。最终制造出了致密度达95%以上、维氏硬度11.3 GPa、XRD表征为四方相的氧化锆陶瓷器件,实现了复杂陶瓷器件的快速打印制备。 The traditional ceramic molding process has the problems of low material utilization and high energy consumption.Therefore,this paper proposes a method of using digital light processing(DLP)to prepare zirconia ceramics with fine and complex structure.In the experiment,the ceramic-photosensitive resin paste with solid phase up to mass fraction of 72.5%was configured.Using ultraviolet light as the light source,the paste was cured layer by layer and superimposed.The experiment studied the influence of exposure time,exposure intensity and other factors on the curing depth.The optimized ceramic slurry showed good curing efficiency and molding accuracy.This paper also studied the effects of sintering temperature on the density and Vickers hardness of ceramic devices.Finally,a zirconia ceramic microdevice with density of more than 95%,Vickers hardness of 11.3 GPa,and XRD characterized as tetragonal phase was fabricated,which achieved rapid printing preparation of complex ceramic devices.

关 键 词： 陶瓷材料 光敏树脂 数字光处理 烧结

领　　域： [化学工程—陶瓷工业] [化学工程—硅酸盐工业] [自动化与计算机技术—计算机应用技术] [自动化与计算机技术—计算机科学与技术]