Natural Quasicrystals by Luca Bindi

Author:Luca Bindi
Language: eng
Format: epub
ISBN: 9783030456771
Publisher: Springer International Publishing

Noteworthy, several strong diffraction peaks belonging to the quasicrystal structure re-appear while decreasing the temperature at ~1500 K. The peaks remain visible even after quenching the sample to room temperature. The most important conclusion is that we did not observe any amorphization or phase transformation. The appearance of the new peaks is indeed explained by a strong preferential orientation of the quasicrystalline sample in the diamond anvil cell. Nevertheless, it is important to remark that with increasing temperature the possible formation of crystal approximants via a reversible process cannot be ruled out. More details about these experiments are given by Stagno et al. (2015).

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