Hierarchical aluminum borate whisker aerogels were prepared via a sol-gel process, followed by freeze-drying and high‑temperature in situ reaction. The whiskers in matrix and those on mullite fibers ...
The description of the sol–gel-waveguide fabrication follows that of ref. 4. Organosilicate sol–gel solutions are prepared for the cladding and core sol–gel waveguide layers, which consist of ...
Hierarchical aluminum borate whisker aerogels were prepared via a sol-gel process, followed by freeze-drying and high‑temperature in situ reaction. The whiskers in matrix and those on mullite fibers ...
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