Processing of the Nd2O3:SiO2 system by Laser Floating Zone in air

Highly textured polycrystalline fibres of monoclinic P21/c Nd2SiO5 and hexagonal P63/m Nd9.33(SiO4)6O2 phases were obtained by Laser Floating Zone in air from stoichiometric mixtures of Nd2O3 and SiO2 changing the pulling rate from 10 to 400 mm/h. Distribution of phases barely varied due to the inco...

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Detalhes bibliográficos
Autores: Rey-García, F., Ferreira, Nuno M., Fernandes, A.J.S., Costa, F. M.
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/219088
Acesso em linha:http://hdl.handle.net/10261/219088
Access Level:acceso abierto
Palavra-chave:Nd2SiO5Nd9.33(SiO4)6O2
Raman spectroscopy
Laser floating zone
Descrição
Resumo:Highly textured polycrystalline fibres of monoclinic P21/c Nd2SiO5 and hexagonal P63/m Nd9.33(SiO4)6O2 phases were obtained by Laser Floating Zone in air from stoichiometric mixtures of Nd2O3 and SiO2 changing the pulling rate from 10 to 400 mm/h. Distribution of phases barely varied due to the incongruent melt of the Nd2O3:SiO2 system, resulting in fibres adequate for microwave devices owing to the dielectric character of the Nd2SiO5 phase. Raman analysis was performed in this material for the first time.