通过乳液模板法制备无机/无机复合材料
Inorganic/inorganic composites through emulsion templating
AI总结：
本文提出结合乳液与注浆成型的低成本平台，可原位调控无机/无机复合材料微观结构并实现复杂成型，还能制备氧化锆涂层增强支架及铁纤维增韧氧化铝。
摘要：
无机/无机复合材料广泛应用于对能源转型至关重要的多种场景，从核反应堆到储能装置。其微观结构决定了质量输运、抗断裂性能等诸多性质。目前已开发出多种控制无机/无机复合材料微观结构的工艺，包括粉体混合、短纤维或长纤维的使用、用于层压材料的流延成型，以及近期的3D打印。本文将乳液与注浆成型相结合，构建了一种更简单、适用性广且成本低廉的加工平台，可原位控制复合材料的微观结构，并实现复杂成型。乳液用于在一种无机相中形成尺寸可控的另一种无机相液滴，而注浆成型可实现最终部件的三维成型。研究表明，对乳液进行注浆成型会触发两步溶剂去除，为孔隙的共形包覆提供了可能。通过制备磁响应液滴，我们在注浆成型过程中于无机基体内部形成无机纤维，展示了一种制备长纤维增强复合材料的简便方法。我们通过制备由经确认的氧化锆涂层增强的坚固轻质氧化铝支架，以及含金属铁纤维、断裂功比氧化铝高一个数量级的氧化铝材料，例证了该加工平台的潜力。
英文摘要：
Inorganic/inorganic composites are found in multiple applications crucial for the energy transition, from nuclear reactor to energy storage devices. Their microstructures dictate a number of properties, such as mass transport or fracture resistance. There has been a multitude of process developed to control the microstructure of inorganic/inorganic composites, from powder mixing and the use of short or long fibre, to tape casting for laminates up to recently 3D printing. Here, we combined emulsions and slip casting into a simpler, broadly available, inexpensive processing platform that allow for in situ control of a composite's microstructure that also enables complex shaping. Emulsions are used to form droplets of controllable size of one inorganic phase into another, while slip casting enable 3D shaping of the final part. Our study shows that slip casting emulsions trigger a two-steps solvent removal that opens the possibility for conformal coating of porosity. By making magnetically responsive droplets, we form inorganic fibre inside an inorganic matrix during slip casting, demonstrating a simple fabrication for long-fibre reinforced composites. We exemplify the potential of this processing platform by making strong and lightweight alumina scaffolds reinforced by a confirmed zirconia coating and alumina with metallic iron fibres that displays work of fracture an order of magnitude higher than alumina.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
