SciELO - Scientific Electronic Library Online

 
vol.9 número1Aplicaciones de la permeación de vapor: el tratamiento de compuestos orgánicos volátiles de origen antropogénicoModulación del índice de refracción de guías de onda ópticas de polímero SU-8 por medio de un proceso hibrido fototérmico índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

  • Não possue artigos similaresSimilares em SciELO

Compartilhar


Revista mexicana de ingeniería química

versão impressa ISSN 1665-2738

Resumo

GONZALEZ, F.; BARRERA C., E.  e  ROSAS C., R.. Photothermal selective coatings of black molybdenum. Rev. Mex. Ing. Quím [online]. 2010, vol.9, n.1, pp.79-83. ISSN 1665-2738.

Thin and adherent coatings of molybdenum black solar selective coatings have been produced on copper substrates by immersion in solutions with different concentration of ammonium molybdate. The copper sheet was polished prior to immersion in the molybdate solution. XRD analyses showed that the coating consists of different oxides of copper and molybdenum. The maximum solar absorptance of the resulting molybdenum black coating was 0.87 for which the thermal emittance was 0.45. The best selectivity of 4.05 was obtained for a coating made in three days in an 8.0 mM solution of ammonium molybdate, for which the absorptance was 0.81 and thermal emittance, 0.2.

Palavras-chave : solar selective coatings; optical properties; microstructural properties; chemical bath; molybdenum black.

        · resumo em Espanhol     · texto em Inglês     · Inglês ( pdf )

 

Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons