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Figure 1
(a) Scanning electron micrograph of large boehmite particles in initial state and (b) transmission electron micrograph of a small particle in the annealed state.

IUCrJ
Volume 6| Part 1| January 2019| Pages 116-127
ISSN: 2052-2525
https://doi.org/10.1107/S2052252518015786