From nanosized precursors to high performance ceramics: The case of Bi₂Ca₂Co_1.7O_x

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• 作者：M.A. Madre^a ; ^{amadre@unizar.es} ; Sh. Rasekh^a ; K. Touati^b ; C. Salvador^a ; M. Depriester^b ; M.A. Torres^a ; P. Bosque^a ; J.C. Diez^a ; A. Sotelo^a
• 关键词：Electroceramics ; Sintering ; Electrical properties ; Microstructure
• 刊名：Materials Letters
• 出版年：2017
• 出版时间：15 March 2017
• 年：2017
• 卷：191
• 期：Complete
• 页码：14-16
• 全文大小：1291 K
• 卷排序：191

文摘

Bi2Ca2Co1.7Ox ceramics have been prepared by different routes. Nanosized precursors lead to improved homogeneity and density. Nanoprecursors improve Seebeck coefficient and electrical conductivity. ZT is drastically improved when compared with sintered materials.