Preparation of mullite whisker skeleton porous ceramic
Source abstract
Abstract
Abstract Sillimanite whisker skeleton porous ceramic was firstly prepared by an appropriate firing process from kaolinite and ammonium hexafluoroaluminate (AHA) as raw materials, then mullite whisker and corundum were produced by firing the sillimanite whisker skeleton at 1400 °C. Effect of firing system on the sillimanite whisker skeleton formation was examined in detail. A series of complex gas phase reactions between the kaolinite and ammonium hexafluoroaluminate (AHA) caused the sillimanite whisker skeleton formation in the ceramic body. The experimental results show that one-step firing process with fast heating rate leads to the hexagonal shaped α-Al 2 O 3 platelet forming, but the slow heating rate or two-step firing processes can completely cause the whisker skeleton structure generation.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advanced ceramic materials synthesis · Nuclear materials and radiation effects · Recycling and utilization of industrial and municipal waste in materials production
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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