The following information was submitted:
Transactions: INTERNATIONAL JOURNAL of ENERGY and ENVIRONMENT
Transactions ID Number: 19-787
Full Name: Ricardo Teixeira
Position: Researcher
Age: ON
Sex: Male
Address: Cid. Universitária-Centro de Tecnologia-Bloco F, sala F-210, Ilha do Fundão - Caixa Postal 68505, Rio de Janeiro, RJ - CEP 21941-972
Country: BRAZIL
Tel: +55 (21) 2562-8500
Tel prefix: 8527
Fax: +55 (21) 2290-1615 R235
E-mail address: rlpteixeira@metalmat.ufrj.br
Other E-mails: rlteixeira@hotmail.com
Title of the Paper: Nanometric leveling and optical selectivity enhancement of black nickel electrodeposited on C81100 high conductive copper
Authors as they appear in the Paper: R. l. p. Teixeira, R. a. Simao, B. Coelho and A. c. Oliveira
Email addresses of all the authors: rlpteixeira@metalmat.ufrj.br,renata@metalmat.ufrj.br,bcoelho@fe.up.pt,acoliv@fe.up.pt
Number of paper pages: 8
Abstract: A black nickel solar absorber film with high absorptance in the solar spectrum (alfa) and low thermal emittance (epsilon) was electrodeposited on nickel films produced by the Watts solution on nanometric leveled C81100 copper. This high conductivity C81100 copper substrate was nanometrically leveled by electrochemical polishing to minimize textural surface effects as well as light trapping and optical losses. The nanometric leveled black nickel layer presented a thickness of (2.9 ± 0.1) micrometers and a selectivity (alfa/beta) of 11, against a selectivity (alfa/beta) of 8.9 for the non structured condition. The nanometric leveled black nickel presented a higher concentrated statistical dispersion of grain range size and lower nanometric RMS, a diameter deviation of 17 nm against 42 nm for the non structured condition. AFM and optical results confirmed that the nanometric size of black nickel grains and their grain size standard deviation are decisive factors to !
decrease the emittance and increase the final selectivity.
Keywords: Ceramic-matrix composites (CMCs), Solar absorber, Atomic force microscopy, Infrared (ir) spectroscopy, Scanning electron microscopy (SEM)
EXTENSION of the file: .doc
Special (Invited) Session: Nanostructuration of black nickel low cost solar absorbing electrodeposited on c81100 high conductive copper
Organizer of the Session: 638-124
How Did you learn about congress: UFMG Professor PHD Geralda cristina durães de Godoy,gcgodoy@uaigiga.com.br, PHD USIMINAS researcher Cynthia helena soares boucas Teixeira,cynthia.teixeira@usiminas.com
IP ADDRESS: 146.164.54.155
