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Broadband NIR emission in novel sol-gel Er3+-doped SiO 2-Nb2O5 glass ceramic planar waveguides for photonic applications
(2013-01-01)
This paper reports on the sol-gel preparation and structural and optical characterization of new Er3+-doped SiO2-Nb 2O5 nanocomposite planar waveguides. Erbium-doped (100-x)SiO2-xNb2O5 waveguides were deposited on ...
Production and heat treatment of cast graphitic steels with additions of niobium
(2008-02-01)
The optimal combination of the mechanical characteristics of austempered spheroidal graphitic cast steel together with modern casting techniques yielded an economically promising product. The maximum potentiality of the ...
Production and heat treatment of cast graphitic steels with additions of niobium
(2008-02-01)
The optimal combination of the mechanical characteristics of austempered spheroidal graphitic cast steel together with modern casting techniques yielded an economically promising product. The maximum potentiality of the ...
Niobium doped Bi4Ti3O12 ceramics obtained by the polymeric precursor method
(Elsevier B.V., 2007-01-01)
Pure and niobium doped bismuth titanate ceramics (Bi4Ti3-xNbxO12 (BTN)), with x ranging from 0 to 0.4 were prepared by the polymeric precursor method. X-ray diffraction showed no secondary phases. Increasing niobium content ...
Niobium doped Bi4Ti3O12 ceramics obtained by the polymeric precursor method
(Elsevier B.V., 2007-01-01)
Pure and niobium doped bismuth titanate ceramics (Bi4Ti3-xNbxO12 (BTN)), with x ranging from 0 to 0.4 were prepared by the polymeric precursor method. X-ray diffraction showed no secondary phases. Increasing niobium content ...
Niobium modified glass for nuclear waste immobilization
(Associa????o Brasileira de Energia Nuclear, 2020)