Ontology highlight
ABSTRACT:
SUBMITTER: Jahnichen T
PROVIDER: S-EPMC10142860 | biostudies-literature | 2023 Apr
REPOSITORIES: biostudies-literature
Jähnichen Tim T Carstens Simon S Franz Maximilian M Laufer Otto O Wenzel Marianne M Matysik Jörg J Enke Dirk D
Materials (Basel, Switzerland) 20230412 8
When impregnated with manganiferous precursors, γ-Al<sub>2</sub>O<sub>3</sub> may be converted into α-Al<sub>2</sub>O<sub>3</sub> under relatively mild and energy-saving conditions. In this work, a manganese assisted conversion to corundum at temperatures as low as 800 °C is investigated. To observe the alumina phase transition, XRD and solid-state <sup>27</sup>Al-MAS-NMR are applied. By post-synthetical treatment in concentrated HCl, residual manganese is removed up to 3 wt.-%. Thereby, α-Al<su ...[more]