Inorganic/inorganic composites through emulsion templating
Author(s)
Type
Journal Article
Abstract
Inorganic/inorganic composites are found in multiple applications crucial for the energy transition, from nuclear reactors to energy storage devices. Their microstructures dictate their properties from mass transport to fracture resistance. Consequently, there has been a multitude of processes developed to control them, from powder mixing and the use of short or long fibers, to tape casting for laminates up to recent 3D printing. Here, emulsions and slip casting are combined into a simpler, broadly available, inexpensive processing platform that allows for in situ control of composite microstructure while also enabling complex 3D shaping. This study shows that slip casting of emulsions triggers a two-step solvent removal, opening the possibility for the conformal coating of pores. This process is showcased by producing strong and lightweight alumina scaffolds reinforced by a conformal zirconia coating. In addition, by manipulating magnetically responsive droplets, their distribution can be controlled, allowing for the formation of inorganic fibers inside an inorganic matrix in situ during slip casting. Using this approach, alumina has been reinforced with aligned metallic iron fibers to prepare composites with a work of fracture an order of magnitude higher than the pure ceramics.
Date Issued
2025-02-19
Date Acceptance
2024-12-12
Citation
Advanced Materials, 2025, 37 (7)
ISSN
0935-9648
Publisher
Wiley
Journal / Book Title
Advanced Materials
Volume
37
Issue
7
Copyright Statement
© 2024 The Author(s). Advanced Materials published by Wiley-VCH GmbH This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
License URL
Identifier
https://www.ncbi.nlm.nih.gov/pubmed/39707700
Subjects
BEHAVIOR
CELLULAR CERAMICS
ceramic composites
Chemistry
Chemistry, Multidisciplinary
Chemistry, Physical
emulsion
ENERGY
magnetic templating
Materials Science
Materials Science, Multidisciplinary
NACRE-LIKE
Nanoscience & Nanotechnology
Physical Sciences
Physics
Physics, Applied
Physics, Condensed Matter
porous materials
RHEOLOGY
Science & Technology
Science & Technology - Other Topics
SUSPENSIONS
Technology
TOUGHNESS
Publication Status
Published
Coverage Spatial
Germany
Article Number
2411352
Date Publish Online
2024-12-20