ISSN:
1662-9752
Quelle:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Thema:
Maschinenbau
Notizen:
We prepared the Ni80-xCrxP16B4 (x = 3, 6, 9, 12, 15, 18, 21, 24, 27 and 30 at.%) alloy ingots in anAr flow atmosphere without evacuation and then produced the alloy ribbons by melt-spinning inevacuation and air. Their thermal stability and other charasteristics were studied and the alloycomposition was optimized.A supercooled liquid state appeared at Cr content of more than 9 at.%, and their Tg and Tx increasedwith increasing Cr content. The 2 Tx increases up to about 45 K with increasing Cr content up to 15at.%, and then saturates in more higher Cr content. Thus we select the Ni65Cr15P16B4alloy as anoptimized composition for PEFC separator.Moreover, the precise grooves were successfully formed under viscous flow process. Thegroove-formed sample possessed a single glassy phase, and the Tg, Tx and 2Tx were not changed.Itindicates that the sample was not thermally affected by hot-pressing in this experimental condition
Materialart:
Digitale Medien
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/18/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.561-565.1367.pdf
