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Stabilization of tricalcium phosphateslurries against sedimentation for stereolithographic additive manufacturingand influence on the final mechanical properties
发表状态：
The American Ceramic Society, 2017，DOI: 10.1111/ijac.12664
研究团队：
1）Institute of Material Science and Technology, TU Wien, Vienna,Austria
2）Lithoz GmbH,Vienna, Austria
研究内容：
用于立体光刻技术的陶瓷制造的材料是感光陶瓷颗粒填充的浆料，其随着时间和每个加工步骤都需要具有均匀的性质。本研究的目标是通过增加浆液粘度，固体负载量或诱发触变行为来实现磷酸三钙填充浆液的“机械”稳定。尽管所有方法都能提高储存稳定性，但在印刷过程中只有含0.5wt％热解法二氧化硅的稳定浆液才能保持稳定。
Abstract：
Ceramicparts manufactured by lithography-based ceramic manufacturing (LCM) excel inresolution and surface quality. The material for LCM is a photosensitiveceramic particle-filled slurry which needs to have homogeneous properties overtime and during each processing step. The goal of this study was to use“mechanical” stabilization for a tricalcium phosphate-filled slurry done byincreasing slurry viscosity, solids loading, or inducing thixotropic behavior.The modified slurries were compared with a nonstable reference slurry. Whileall methods lead to increased storage stability, only the stabilized slurrywith 0.5 wt% fumed silica is stable during the printing process.