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Spectroscopic characterization of nanocrystalline chromium nitride (CrN).
Mangamma, G; Sairam, T N; Dash, S; Rajalakshmi, M; Kamruddin, M; Mittal, V K; Narasimhan, S V; Arora, A K; Sundar, C S; Tyagi, A K; Raj, Baldev.
Afiliación
  • Mangamma G; Materials Science Division, Indira Gandhi Center for Atomic Research, Kalpakkam-603102, Tamil Nadu, India.
J Nanosci Nanotechnol ; 7(3): 970-6, 2007 Mar.
Article en En | MEDLINE | ID: mdl-17450861
Nanocrystalline chromiuim nitride has been synthesised by direct gas phase nitridation of nanocrystalline chromia at 1100 degrees C in ammonia-atmosphere. XRD of this material showed formation of single phase CrN with particle size around 20 nm. AFM studies showed particle distribution along with some soft agglomerated nanostructures. Nanocrystalline Cr2O3 and partially-as well as fully--converted nanocrystalline CrN were also investigated using various spectroscopic techniques like XPS, FT-IR, and Raman for gaining insight into the conversion pathways. Spectroscopic investigations of these materials clearly indicate that complete conversion of CrN occurs by nitriding at 1100 degrees C for 4 hrs. The salient spectroscopic features of these nanocrystalline materials with respect to their microcrystalline counterparts are discussed.
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Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Compuestos de Cromo / Nanopartículas del Metal Idioma: En Revista: J Nanosci Nanotechnol Año: 2007 Tipo del documento: Article País de afiliación: India Pais de publicación: Estados Unidos
Buscar en Google
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Imprimir
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PubMed Links

Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Compuestos de Cromo / Nanopartículas del Metal Idioma: En Revista: J Nanosci Nanotechnol Año: 2007 Tipo del documento: Article País de afiliación: India Pais de publicación: Estados Unidos