2006年1月27日 · Deville et al. have shown how to replicate the nacre structure of shells using controlled freezing of mixtures of water and ceramic powder. The composites made by this route have remarkably improved mechanical properties.

2006年1月30日 · The researchers knew that when seawater freezes, it can form tiny plates of ice. Impurities in the water are squeezed out as the plates form and become trapped in the spaces between them. Tomsia's group exploits this behavior using concentrated suspensions of ceramic particles in water.

2024年5月17日 · Ice templating, or freeze casting, is a controllable, scalable, and environmentally friendly process for creating all kinds of porous materials, traditionally rigid ones such as ceramics and metals. The technique involves harnessing the phase transformation of a solvent from liquid to crystalline solid.

2017年1月20日 · These processing routes are called ice-templating, freeze-casting, or sometimes just freeze-drying. This chapter concentrates on materials science studies and the applications of the freezing of...

2019年9月26日 · Ice-templated ceramics, whether traditional or advanced, have been particularly investigated, for an ever-broadening range of structural or functional properties.

2015年7月16日 · Ice templating, also known as freeze casting, is a popular shaping route for macroporous materials. Over the past 15 years, it has been widely applied to various classes of materials, and in particular ceramics. Many formulation and process parameters, often interdependent, affect the outcome.

2017年6月29日 · The freeze-cast ceramics process involves the use of an aqueous slurry in which ice acts as a fugitive template, providing control of the morphology of the resultant green body, which is then sintered. Here we report the role of various additives and procedures in tailoring the morphology of ice-templated, freeze-cast alumina ceramics.

Modern ceramics are very strong but brittle, and so are unsuitable for most load-bearing applications. Ceramics fail by sudden catastrophic fracture, which is not a trait that engineers find endearing. These materials behave in this way because they …

2006年2月1日 · We demonstrate how the physics of ice formation can be used to develop sophisticated porous and layered-hybrid materials, including artificial bone, ceramic-metal composites, and porous...

2017年1月20日 · Ceramic/ceramic composites can be ice-templated, although this induces several complications. Achieving a homogeneous phase distribution in the final material is usually desired, but not always straightforward to achieve.