Study on composite of thermoplastic loaded by magnetocaloric powders.
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http://www.iifiir.org/clientBookline/service/reference.asp?INSTANCE=EXPLOITATION&OUTPUT=PORTAL&DOCID=IFD_REFDOC_0019329&DOCBASE=IFD_REFDOC_EN&SETLANGUAGE=EN
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资源简介：
Magnetic refrigeration is an innovative and promising alternative to traditional refrigeration systems. However, the production of magnetocaloric components used as regenerators in magnetic refrigeration systems is a significant challenge. This work consists of developing an innovative process to obtain magnetocaloric components by powder extrusion moulding. A component containing up to 91.5 wt% magnetocaloric powder was obtained using a gas atomised magnetocaloric powder La-Fe-Si alloy. The powder is first mixed with a thermoplastic polymer to obtain a “ready to shape” feedstock. Then, the feedstock is either extruded to obtain the magnetocaloric component. Characterisations of the thermophysical properties are carried out during all stages of processing, from pure powder to injected parts. A study on the modification of the Curie temperature as a result of dehydrogenation was performed during each processing stages. Good processability was demonstrated for the highly loaded feedstock and conservation of the magnetocaloric properties during the process.
提供机构：
International Institute of Refrigeration (IIR)
创建时间：
2016-12-28
