Powder-less processing for nano-structured bulk ceramics: Realization of direct fabrication from solutions and/or melts

研究成果: Review article同行評審

12 引文 斯高帕斯(Scopus)

摘要

Based upon energetic considerations for every ceramic fabrication processing via solids as powders, liquids as solutions and melts, or gases including atoms and ions, it is concluded that solution processing has the least energy consumption when the shaped ceramics can be fabricated directly. The direct fabrication of ceramics in a solution by a single step process can be achieved via the interfacial reaction between a solid, substrate and reactant, and a solute specie in a solution. These soft processing and/or soft solution processing might prepare various ceramics films like BaTiO3, SrTiO3, CaWo4, LiCoO2, etc., at low temperatures, RT-150°C, without any post firing. The patterned ceramic films can also be fabricated directly in solutions when those interfacial reactions are locally activated and/or scanned. Another direct fabrication method, the ink-jet reaction method has been developed for the direct patterning of ceramics. The novel melt processings have been re-investigated for the direct fabrication of bulk ceramics particularly for the binary and ternary eutectic systems. Melt casting and annealing of the eutectic amorphous phase could produce nano-structured ceramics in HfO2-Al2O 3-GdAlO3 and C12A7-CaYAlO 4 systems, etc. The importance of the powder-less processings, direct fabrications, of ceramics from solutions and/or melts has been demonstrated for the future sustainable society.

原文English
頁(從 - 到)888-895
頁數8
期刊Journal of the Ceramic Society of Japan
114
發行號1335
DOIs
出版狀態Published - 2006 十一月

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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