Research on selective laser sintering of Kaolin-epoxy resin ceramic powders combined with cold isostatic pressing and sintering
Research on selective laser sintering of Kaolin-epoxy resin ceramic powders combined with cold isostatic pressing and sintering
复制标题
选择性激光烧结结合冷等静压烧结高岭土-环氧树脂陶瓷粉末的研究
DOI：
10.1016/j.ceramint.2016.03.190
复制
发表时间：
2016
影响因子：
5.2
通讯作者：
Wang Min
中科院分区：
文献类型：
--
作者：
Liu Kai;Sun Huajun;Shi Yusheng;Liu Jie;Zhang Shaowei;Huang Shangyu;Wang Min
为了制备传统的复杂形状高岭土陶瓷制品，采用选择性激光烧结（SLS）结合冷等静压（CIP）工艺，以环氧树脂E06为添加剂，对高岭土粉末进行烧结。为了开始制备材料，通过机械混合将环氧树脂（10重量%）和高岭土组合，这为SLS提供了良好的流动性。研究了高岭土-环氧树脂SLS样品的收缩率和微观形貌，优化了激光烧结工艺参数。当激光能量密度为0.3300-0.3763 J/mm ~ 2时，SLS试样的收缩率和致密度均较高。然后对SLS样品进行CIP处理，以消除绿色陶瓷中的气孔。最后，对优化后的SLS/CIP高岭土样品进行脱脂和烧结，制备出无裂纹的高岭土陶瓷。采用SLS/CIP技术与彩色釉相结合的方法制备了“黄鸭”高岭土陶瓷制品。该研究为选择性激光烧结结合等静压烧结制备复杂的传统陶瓷制品提供了一条新的途径。
In order to fabricate traditional products with complex shapes consisting of Kaolin ceramic, selective laser sintering (SLS) combined with cold isostatic pressing (CIP) process was used to consolidate Kaolin powder with additive of epoxy resin E06. To begin preparing the material, epoxy resin (10 wt%) and Kaolin were combined through mechanical mixing, which provided a good fluidity for SLS. Investigations on the shrinkage and micro topography of Kaolin–epoxy resin SLS samples were conducted to optimize the laser sintering parameters. It was found that SLS samples represented acceptable shrinkage and high density when laser energy density was 0.3300–0.3763 J/mm2. Then the SLS samples were processed by CIP to eliminate the pores in green ceramics. Finally, the optimized SLS/CIP Kaolin samples were debinded and sintered to produce crack-free Kaolin ceramics. The “Yellow Duck” Kaolin ceramic product was fabricated by combining SLS/CIP with colored glazing. The study shows a novel and promising approach to fabricate complex traditional ceramic products via SLS combined with CIP and sintering.