caa a22 4500 463229614 CHVBK 20180405153238.0 cr unu---uuuuu 170326e20070701xx s 000 0 eng 10.1007/s10853-006-0772-6 doi (NATIONALLICENCE)springer-10.1007/s10853-006-0772-6 Hollow biomorphic Al2O3 fibers produced from sisal [Elektronische Daten] [Tarcisio Andrade Jr, Carlos Rambo, Heino Sieber, Antonio Martinelli, Dulce Maria A. Melo] Al2O3 fibers with a hollow morphology were produced by Al-vapor infiltration-reaction and subsequent oxidation from pyrolysed fibers of natural sisal. Following pyrolysis, the bio-fiber template was reacted with gaseous Al at 1,400°C-1,600°C in vacuum to form Al4C3. After an oxidation/sintering process at 1,550°C, the biomorphic Al4C3 fibers were fully converted into Al2O3, maintaining the microstructural features of the native sisal. Phase and microstructural characterization during processing were evaluated by high temperature X-ray diffractometry and scanning electron microscopy, respectively. Thermo-analyses were performed in the Al4C3 samples in order to estimate the reactions and the weight change during the oxidation step. Springer Science+Business Media, LLC, 2007 Andrade Jr Tarcisio Department of Chemistry, Federal University of Rio Grande do Norte, 59072-970, Natal, RN, Brazil aut Rambo Carlos Chemical Engineering Department, Federal University of Santa Catarina, P.O. Box 476, 88040-900, Florianópolis, SC, Brazil aut Sieber Heino Department of Materials Science, Glass and Ceramics University of Erlangen-Nuremberg, Martensstrasse, 5, 91058, Erlangen, Germany aut Martinelli Antonio Department of Chemistry, Federal University of Rio Grande do Norte, 59072-970, Natal, RN, Brazil aut Melo Dulce Maria A. Department of Chemistry, Federal University of Rio Grande do Norte, 59072-970, Natal, RN, Brazil aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/14(2007-07-01), 5426-5430 0022-2461 42:14<5426 2007 42 10853 https://doi.org/10.1007/s10853-006-0772-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-0772-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Andrade Jr Tarcisio Department of Chemistry, Federal University of Rio Grande do Norte, 59072-970, Natal, RN, Brazil aut NATIONALLICENCE 700 1- Rambo Carlos Chemical Engineering Department, Federal University of Santa Catarina, P.O. Box 476, 88040-900, Florianópolis, SC, Brazil aut NATIONALLICENCE 700 1- Sieber Heino Department of Materials Science, Glass and Ceramics University of Erlangen-Nuremberg, Martensstrasse, 5, 91058, Erlangen, Germany aut NATIONALLICENCE 700 1- Martinelli Antonio Department of Chemistry, Federal University of Rio Grande do Norte, 59072-970, Natal, RN, Brazil aut NATIONALLICENCE 700 1- Melo Dulce Maria A. Department of Chemistry, Federal University of Rio Grande do Norte, 59072-970, Natal, RN, Brazil aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/14(2007-07-01), 5426-5430 0022-2461 42:14<5426 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer