Power Generation of a p-Type Ca{sub}3Co{sub}4O{sub}9/n-Type CaMnO{sub}3 Module


          

刊名：International journal of applied ceramic technology
作者：Saori Urata（CREST, Japan Science and Technology Agency, Honmachi, Kawaguchi, Saitama 332-0012, Japan）
Ryoji Funahashi
Toshiyuka Mihara
Atsuko Kosuga
Satoshi Sodeoka
Takahiro Tanaka
刊号：815B0012
ISSN：1546-542X
出版年：2007
年卷期：2007, vol.4, no.6
页码：535-540
总页数：6
分类号：TQ17
语种：eng
文摘：Thermoelectric modules composed of eight pairs of p-type Ca{sub}2.7Bi{sub}0.3Co{sub}4O{sub}9 (Co-349) and n-type CaMn{sub}0.98Mo{sub}0.02O{sub}3 (Mn-113) bulks were constructed using Ag electrodes and paste including powder of the n-type oxide. The former bulks were prepared by hot pressing. On the other hand, the latter were densified using a cold isostatic pressing technique and sintered in atmospheric pressure. Dimensions of both oxide legs were 5 mm wide and thick and 4.5 mm high. An alumina plate was used as a substrate, and there was no alumina plate on the other side of the modules. When the substrate side was heated, the module could generate up to 1.0V and 0.17W of open circuit voltage (V{sub}O) and maximum power (P{sub}(max)), respectively, at a hot-side temperature of 1273 K (furnace temperature as a heat source) and a cold-side temperature of 298 K (circulated water temperature) in air. But internal resistance R{sub}I reached a value of 1.5Ω, which is about six times higher than the calculated One from resistivity of both p- and n-type bulks. When the substrate side was cooled, V{sub}O and P{sub}(max) reached 0.7 V and 0.34 W of V{sub}O and P{sub}(max), respectively, at a furnace temperature of 1273 K.



©2016机械工业出版社（机械工业信息研究院） 京ICP备05055788号-35