Tunable morphology of aluminum oxide whiskers grown by hydrothermal method
Source abstract
Abstract
Abstract Hydrothermal method was used to grow α-Al 2 O 3 whiskers by using hydrated aluminum sulfate, urea and poly ethylene glycol as precursors. X-ray diffraction (XRD), selected area electron diffraction (SAED), and high resolution transmission electron microscope (HRTEM) were used to characterize morphology of the whiskers. By increasing the pH of the solution (by adding extra NaOH), by adjusting calcination times and atmospheres it was possible to tune the whiskers morphology and their aspect ratio. Aspect ratio as high as 25 was obtained after hydrothermal treatment of a solution having pH 3 followed by calcination in Ar or N 2 atmosphere at 1200 °C for 6 h.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Anodic Oxide Films and Nanostructures · Mesoporous Materials and Catalysis · Magnesium Oxide Properties and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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