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Porous Ceramics Made Using Potato Starch as a Pore-forming Agent

机译：以马铃薯淀粉为成孔剂制成的多孔陶瓷

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摘要

Starch, in particular potato (Solarium tuberosum) starch, is a common auxiliary material in ceramic technology. Beside its traditional function as a pore-forming agent, which is pyrolyzed and burned out during the heat-up stage of the ceramic firing process, it has become an important body-forming agent for ceramics during the last decade. In particular, the so-called starch consolidation casting process is based on the ability of starch to swell in aqueous media at a moderately elevated temperature(below 100°C) and thus on the ability of starch granules to absorb free water from a particulate suspension, which leads to the transformation of the more or less viscous ceramic suspension to a viscoleastic (and finally elastic) solid after heating. Inthis contribution we give a brief review of the uses of potato starch in ceramic technology, especially as a pore- and body-forming agent in traditional slip casting and starch consolidation casting. The discussion includes the most important aspects ofusing potato starch in ceramic technology, ranging from size and shape characterization, suspension rheology, swelling kinetics and burnout behavior to the characterization of the resulting ceramic microstructures and the properties of the final ceramicmaterials.
机译：淀粉，特别是马铃薯（马铃薯）淀粉，是陶瓷技术中常见的辅助材料。除了其传统的成孔剂功能（在陶瓷烧成过程的加热阶段被热解并燃烧掉）外，在过去的十年中，它已成为重要的陶瓷成体剂。特别地，所谓的淀粉固结铸造工艺是基于淀粉在适度升高的温度（低于100°C）下在水性介质中溶胀的能力，并且因此基于淀粉颗粒从颗粒悬浮液中吸收游离水的能力。 ，这导致加热后或多或少的粘性陶瓷悬浮液转变为粘稠的（最后是弹性的）固体。在本文中，我们简要回顾了马铃薯淀粉在陶瓷技术中的用途，特别是在传统的粉浆浇铸和淀粉固结铸造中用作成孔剂和生体剂。讨论包括在陶瓷技术中使用马铃薯淀粉的最重要方面，范围从大小和形状表征，悬浮流变性，溶胀动力学和燃尽行为到所得陶瓷微结构的表征以及最终陶瓷材料的特性。

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