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Type: Artigo de periódico
Title: Porous Glass-ceramic With Skeleton Of α-nbpo5 With Three-dimensional Network Structure
Author: Mazali I.O.
Alves O.L.
Abstract: Original glass samples of nominal composition 6Li2O-18Nb2O5-43CaO- 33P2O5 (mol%) were prepared by melting reagent grade Li2CO3, CaCO3, Nb2O5 and P2O5 in a platinum crucible at 1350°C for 1 h under air. The melt was poured onto carbon plates and annealed at 550°C for 1 h. Glass plates were crystallized by a two-step heat treatment. The resulting glass-ceramics were immersed in 1.0 mol/L HCl aqueous solution and kept for 24 h at room temperature, to obtain the porous glass-ceramic (PGC). The crystalline phases of the glass-ceramics before and after acid leaching were characterized by X-ray powder diffraction (XRD), infrared (IR) and Raman spectroscopies.
Rights: fechado
Identifier DOI: 10.1023/A:1013716112689
Date Issue: 2001
Appears in Collections:Unicamp - Artigos e Outros Documentos

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