Homogeneous nucleation of corundum nanocrystallites by rapid heating of aluminum formate hydroxide-based precursor powder

Abstract The high density nucleation of α-Al2O3 nanocrystallites was observed by rapid heating of the aluminum formate hydroxide-based precursor powder at 1200 °C for 50 s. The nucleation of α-Al2O3 nanocrystallites with less 10 nm in size from high purity aluminum oxide matrix has not been observed...

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Autores principales:	Michiyuki Yoshida, Yuta Kato, Yasunori Oumi, Osamu Sakurada, Makoto Tanaka, Masashi Wada, Satoshi Kitaoka
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2019
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d516c7c132144663aa8d445666f5b6a7
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spelling	oai:doaj.org-article:d516c7c132144663aa8d445666f5b6a72021-12-02T15:09:42ZHomogeneous nucleation of corundum nanocrystallites by rapid heating of aluminum formate hydroxide-based precursor powder10.1038/s41598-019-51156-22045-2322https://doaj.org/article/d516c7c132144663aa8d445666f5b6a72019-10-01T00:00:00Zhttps://doi.org/10.1038/s41598-019-51156-2https://doaj.org/toc/2045-2322Abstract The high density nucleation of α-Al2O3 nanocrystallites was observed by rapid heating of the aluminum formate hydroxide-based precursor powder at 1200 °C for 50 s. The nucleation of α-Al2O3 nanocrystallites with less 10 nm in size from high purity aluminum oxide matrix has not been observed to our knowledge. Based on the results of XRD and TEM, α-Al2O3 nanocrystallites nucleated from the amorphous phase which formed after thermal decomposition of the precursor powder. Subsequently, α-Al2O3 with hollow rod-like morphology formed through coalescence and growth of nanocrystallites after heating at 1200 °C for 1 min. The results obtained in this paper indicates a possible beneficial effect of the rapid heating and cooling of the aluminum formate hydroxide-based precursor powder on the precipitation of α-Al2O3 nanocrystallites.Michiyuki YoshidaYuta KatoYasunori OumiOsamu SakuradaMakoto TanakaMasashi WadaSatoshi KitaokaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 9, Iss 1, Pp 1-9 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Michiyuki Yoshida Yuta Kato Yasunori Oumi Osamu Sakurada Makoto Tanaka Masashi Wada Satoshi Kitaoka Homogeneous nucleation of corundum nanocrystallites by rapid heating of aluminum formate hydroxide-based precursor powder
description	Abstract The high density nucleation of α-Al2O3 nanocrystallites was observed by rapid heating of the aluminum formate hydroxide-based precursor powder at 1200 °C for 50 s. The nucleation of α-Al2O3 nanocrystallites with less 10 nm in size from high purity aluminum oxide matrix has not been observed to our knowledge. Based on the results of XRD and TEM, α-Al2O3 nanocrystallites nucleated from the amorphous phase which formed after thermal decomposition of the precursor powder. Subsequently, α-Al2O3 with hollow rod-like morphology formed through coalescence and growth of nanocrystallites after heating at 1200 °C for 1 min. The results obtained in this paper indicates a possible beneficial effect of the rapid heating and cooling of the aluminum formate hydroxide-based precursor powder on the precipitation of α-Al2O3 nanocrystallites.
format	article
author	Michiyuki Yoshida Yuta Kato Yasunori Oumi Osamu Sakurada Makoto Tanaka Masashi Wada Satoshi Kitaoka
author_facet	Michiyuki Yoshida Yuta Kato Yasunori Oumi Osamu Sakurada Makoto Tanaka Masashi Wada Satoshi Kitaoka
author_sort	Michiyuki Yoshida
title	Homogeneous nucleation of corundum nanocrystallites by rapid heating of aluminum formate hydroxide-based precursor powder
title_short	Homogeneous nucleation of corundum nanocrystallites by rapid heating of aluminum formate hydroxide-based precursor powder
title_full	Homogeneous nucleation of corundum nanocrystallites by rapid heating of aluminum formate hydroxide-based precursor powder
title_fullStr	Homogeneous nucleation of corundum nanocrystallites by rapid heating of aluminum formate hydroxide-based precursor powder
title_full_unstemmed	Homogeneous nucleation of corundum nanocrystallites by rapid heating of aluminum formate hydroxide-based precursor powder
title_sort	homogeneous nucleation of corundum nanocrystallites by rapid heating of aluminum formate hydroxide-based precursor powder
publisher	Nature Portfolio
publishDate	2019
url	https://doaj.org/article/d516c7c132144663aa8d445666f5b6a7
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Homogeneous nucleation of corundum nanocrystallites by rapid heating of aluminum formate hydroxide-based precursor powder

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