Materials “alchemy”: Shape-preserving chemical transformation of micro-to-macroscopic 3-D structures |
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Authors: | Kenneth H Sandhage |
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Affiliation: | 1.Georgia Institute of Technology,Atlanta,USA |
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Abstract: | The scalable fabrication of nano-structured materials with complex morphologies and tailorable chemistries remains a significant
challenge. One strategy for such synthesis consists of the generation of a solid structure with a desired morphology (a “preform”),
followed by reactive conversion of the preform into a new chemistry. Several gas/solid and liquid/solid reaction processes
that are capable of such chemical conversion into new micro-to-nano-structured materials, while preserving the macroscopic-to-microscopic
preform morphologies, are described in this overview. Such shape-preserving chemical transformation of one material into another
could be considered a modern type of materials “alchemy.” |
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