Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
NEW CERMET SOLAR COATINGS FOR SOLAR THERMAL ELECTRICITY APPLICATIONS
Autore:
ZHANG QC; ZHAO K; ZHANG BC; WANG LF; SHEN ZL; ZHOU ZJ; LU DQ; XIE DL; LI BF;
Indirizzi:
UNIV SYDNEY,DEPT APPL PHYS SYDNEY NSW 2006 AUSTRALIA BEIJING UNIV,DEPT TECH PHYS BEIJING 100871 PEOPLES R CHINA BEIJING UNIV,DEPT PHYS BEIJING 100871 PEOPLES R CHINA BEIJING TURBOSUN ENERGY TECHNOL DEV CO LTD BEIJING 100029 PEOPLES R CHINA
Titolo Testata:
Solar energy
fascicolo: 1-3, volume: 64, anno: 1998,
pagine: 109 - 114
SICI:
0038-092X(1998)64:1-3<109:NCSCFS>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
SELECTIVE SURFACES; FILM STRUCTURES; THIN-FILMS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
20
Recensione:
Indirizzi per estratti:
Citazione:
Q.C. Zhang et al., "NEW CERMET SOLAR COATINGS FOR SOLAR THERMAL ELECTRICITY APPLICATIONS", Solar energy, 64(1-3), 1998, pp. 109-114

Abstract

On the basis of successful research into new metal-aluminium nitride (M-AlN) cermet solar selective coatings, a commercial-scale cylindrical direct current (dc) magnetron sputter coater has been developed for the deposition of these cermet solar coatings onto batches of tubes. The coater vacuum chamber has a diameter of 0.8 m and is 1.8 m in height. 32 glass tubes may be accommodated in the chamber. Stainless steel-aluminium nitride (SS-AIN) cermet material has been investigated as a solar absorbing layer. Three cylindrical post cathodes, consisting of stainless steel, aluminium and copper tubes, are installed in the chamber. During the deposition of an SS-AIN cermet layer, both the Al and SS targets are sputtered simultaneously in the gas mixture of argon and nitrogen. The nitrogen partial pressure is set sufficiently high at the aluminium target side to ensure that a nearly pure AlN ceramic sublayer is deposited by de reactive sputtering. The planetary rotation of the 32 tubes results in a multi-layered system consisting of alternating SS and AlN sublayers. This multi-sublayer system can be considered as a macro-homogeneous cermet layer. Varying SS target current achieves different SS volume fractions in the cermet layers. A solar absorptance of 0.94-0.95 and emittance of 0.04-0.05 at room temperature has been achieved for the SS-AlN cermet solar coatings. These solar tubes are stable at 330-400 degrees C. Using this commercial-scale coater, it should be possible to produce solar tubes stable at even higher temperatures (450-550 degrees C), based on a high melting point transitionmetal-aluminium nitride cermet. (C) 1998 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 24/09/20 alle ore 23:47:00