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231224s2013 xx ||||| 00| ||eng c |
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|a pubmed24n0753.xml
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|a (DE-627)NLM225889099
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|a (NLM)23503683
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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1 |
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|a Lazic, Biljana
|e verfasserin
|4 aut
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|a Superstructure of Mullite-type KAl9O14
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|c 2013
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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|a Band
|b nc
|2 rdacarrier
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|a Date Revised 21.10.2021
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Large whiskers of a new KAl9O14 polymorph with mullite-type structure were synthesized. The chemical composition of the crystals was confirmed by energy-dispersive X-ray spectroscopy, and the structure was determined using single-crystal X-ray diffraction. Nanosized twin domains and one-dimensional diffuse scattering were observed utilizing transmission electron microscopy. The compound crystallizes in space group P21/n (a = 8.1880(8), b = 7.6760(7), c = 8.7944(9) Å, β = 110.570(8)°, V = 517.50(9) Å3, Z = 2). Crystals of KAl9O14 exhibit a mullite-type structure with linear edge-sharing AlO6 octahedral chains connected with groups of two AlO4 tetrahedra and one AlO5 trigonal bipyramid. Additionally, disproportionation of KAl9O14 into K β-alumina and corundum was observed using in situ high-temperature optical microscopy and Raman spectroscopy
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|a Journal Article
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|a diffuse scattering
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|a mullite-type
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|a stacking faults
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|a superstructure
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|a whiskers
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|a Krüger, Hannes
|e verfasserin
|4 aut
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|a Kaindl, Reinhard
|e verfasserin
|4 aut
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|a Perfler, Lukas
|e verfasserin
|4 aut
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|a Kremenović, Aleksandar
|e verfasserin
|4 aut
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|a Cvetković, Vladica
|e verfasserin
|4 aut
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|a Withers, Ray L
|e verfasserin
|4 aut
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|i Enthalten in
|t Chemistry of materials : a publication of the American Chemical Society
|d 1998
|g 25(2013), 3 vom: 12. Feb., Seite 496-502
|w (DE-627)NLM098194763
|x 0897-4756
|7 nnns
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| 773 |
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|g volume:25
|g year:2013
|g number:3
|g day:12
|g month:02
|g pages:496-502
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|d 25
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|c 02
|h 496-502
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