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Titolo:
X-ray diffraction study on pressure-induced phase transformations in nanocrystalline anatase/rutile (TiO2)
Autore:
Wang, ZW; Saxena, SK; Pischedda, V; Liermann, HP; Zha, CS;
Indirizzi:
Florida Int Univ, CeSMEC, Miami, FL 33199 USA Florida Int Univ Miami FL USA 33199 Int Univ, CeSMEC, Miami, FL 33199 USA Cornell Univ, Cornell High Energy Synchrotron Source, Wilson Lab, Ithaca, NY 14853 USA Cornell Univ Ithaca NY USA 14853 Source, Wilson Lab, Ithaca, NY 14853 USA
Titolo Testata:
JOURNAL OF PHYSICS-CONDENSED MATTER
fascicolo: 36, volume: 13, anno: 2001,
pagine: 8317 - 8323
SICI:
0953-8984(20010910)13:36<8317:XDSOPP>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
TITANIUM-DIOXIDE; RAMAN-SPECTRUM; SEMICONDUCTOR NANOCRYSTALS; INDUCED AMORPHIZATION; RUTILE; SCATTERING; PBS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
--discip_EC--
Citazioni:
26
Recensione:
Indirizzi per estratti:
Indirizzo: Wang, ZW Florida Int Univ, CeSMEC, VH-150, Miami, FL 33199 USA Florida IntUniv VH-150 Miami FL USA 33199 0, Miami, FL 33199 USA
Citazione:
Z.W. Wang et al., "X-ray diffraction study on pressure-induced phase transformations in nanocrystalline anatase/rutile (TiO2)", J PHYS-COND, 13(36), 2001, pp. 8317-8323

Abstract

An in situ x-ray diffraction study was conducted to study the pressure-induced phase transformation in nanocrystalline anatase/rutile (TiO2) to 35.1 GPa. The nano-anatase phase remains stable to approximately 16.4 GPa, and then transforms to an amorphous phase, which is returned upon release of pressure. The nano-rutile phase starts to transform to the baddeleyite (ZrO2,)structure at similar to8.7 GPa, and the transformation is complete at approximately 16.4 GPa. On release of pressure the ZrO2 structure transforms tothe alpha -PbO2 structure. The results are compared to previous work on phase changes in TiO2 with different particle sizes.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 26/09/20 alle ore 11:52:24