Year: 2014
Type: article
Abstract: CoSb 3 -based skutterudite compounds are candidate materials for thermoelectric power generation in the mid-temperature range (600 -900 K) because their thermoelectric properties can be enhanced by doping and filling.The joining property of thermoelectric module electrodes containing thermoelectric materials is of great importance because it can dominate the efficiency of the thermoelectric module.This study examined the properties of CoSb 3 /Al/Ti/CuMo joined by the spark plasma sintering technique.Titanium thin foil was used to prevent the diffusion of copper into CoSb 3 and Aluminum thin foil was used to improve the adhesion between CoSb 3 and Ti.The insertion of an Aluminum interlayer between the Ti and CoSb 3 was effective for joining CoSb 3 to Ti by forming an intermediate layer at the Al-CoSb 3 boundary without any micro cracks.Specifically, the adhesion strength of the Ti/Al/ CoSb 3 joining interface showed a remarkable improvement compared with our previous results, without deterioration of electrical property in the interface.
Authors: Min Suk Kim, Jong Pil Ahn, Kyoung Hun Kim, Kyung Ja Kim, Joo Seok Park, Won Seon Seo, Hyung Sun Kim
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W1821911103