Meanwhile, by carefully comparing the obtained α-Al 2 O 3 in Figure 6 b,c, it can be seen that the particle diameter of α-Al 2 O 3 gradually increased with the increase in NH 4 F content, while the thickness exhibited a decreasing trend.
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Low-Temperature Fabrication of Plate-like α-Al<sub>2</sub>O<sub>3</sub> with Less NH<sub>4</sub>F Additive.
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