Manufacturing and microstructural characterization of sintered nickel wicks for capillary pumps



Título del documento: Manufacturing and microstructural characterization of sintered nickel wicks for capillary pumps
Revista: Materials research
Base de datos: PERIÓDICA
Número de sistema: 000312399
ISSN: 1516-1439
Autores: 1


Instituciones: 1Universidade Federal de Santa Catarina, Departamento de Engenharia Mecanica, Florianopolis, Santa Catarina. Brasil
Año:
Periodo: Jul
Volumen: 2
Número: 3
Paginación: 225-229
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Descriptivo
Resumen en inglés Sintered nickel powder is proposed to be used as porous wicks in heat pipes and capillary pumps. In this work the manufacturing procedure for tubular wicks for capillary pump application is discussed. The porosity, mechanical resistance and roundness of tubular wicks made of carbonila powder, atomized powder and a powder mixture of both are analyzed. A powder mixture was selected as the best raw material. In this case, pore size in the range of 2 to 24 mm and porosity about 50% were measured. First tests carried out in the laboratory, using acetone as the working fluid, show capillary pumping pressures up to 4 kPa and heat fluxes of about 1 W/cm2 in a two-phase heat transfer loop
Disciplinas: Ingeniería
Palabras clave: Ingeniería de control,
Ingeniería química,
Polvo,
Níquel,
Porosidad
Keyword: Engineering,
Chemical engineering,
Control engineering,
Dust,
Nickel,
Porosity
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