3D Printing Transparent <i>γ</i>‐Alumina Porous Structures Based on Photopolymerizable Sol–Gel Inks
نویسندگان
چکیده
A novel method for fabricating transparent porous γ-alumina 3D structures by printing at high resolution is presented. The process based on combining digital light processing (DLP) and sol–gel reactions, all performed in solutions, resulting ceramic monolithic structures. aqueous solution contains mainly aluminum chloride, propylene oxide (PO), ethanol, acrylic acid (AA). printed polymerized are aged, followed supercritical drying (SCD), sintered temperatures. During aging sintering, the objects shrink, thus enabling a final far beyond nominal value of used printer. crystalline γ-Al2O3, with very surface area, above 1800 m2 g−1, optical transmission 80% 600 nm. In addition, SCD enables precise control pores’ dimensions total which essential applications including thermal insulation catalyst support obtaining heat-resistant devices.
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ژورنال
عنوان ژورنال: Advanced materials and technologies
سال: 2023
ISSN: ['2365-709X']
DOI: https://doi.org/10.1002/admt.202300123