Title :
Mo/Ti/CoSb3 joining technology for CoSb3 based materials
Author :
Li, Xiaoya ; Chen, Lidong ; Fan, Junfeng ; Bai, Shengqiang
Author_Institution :
State Key Lab. of High Performance Ceramics & Superfine Microstruct., Shanghai Inst. of Ceramics, China
Abstract :
CoSb3 based materials are promising for power generation in the intermediate temperature range. In the present work, we have developed a novel technology for the fabrication of CoSb3 thermoelectric (TE) couple by spark plasma sintering (SPS). Molybdenum (Mo) was selected as the electrode material and a titanium (Ti) layer was inserted between Mo and CoSb3 to realize the joining of Mo to CoSb3 at a lower temperature. Shear tests showed that the joint possesses a shear strength ranging from 55 MPa to 70 MPa. The potential voltage measurement showed that the joint exhibits good electrical properties. All the results indicate that the Mo/Ti/CoSb3 joining technology is suitable for fabricating TE couples using the CoSb3 based materials.
Keywords :
antimony alloys; cobalt alloys; joining processes; molybdenum; plasma materials processing; shear strength; sintering; thermocouples; thermoelectric conversion; titanium; Mo-Ti-CoSb3; SPS; electrode material; joining technology; potential voltage; shear strength; shear tests; spark plasma sintering; thermoelectric couple; Electrodes; Fabrication; Joining materials; Plasma materials processing; Plasma temperature; Power generation; Sparks; Tellurium; Temperature distribution; Thermoelectricity;
Conference_Titel :
Thermoelectrics, 2005. ICT 2005. 24th International Conference on
Print_ISBN :
0-7803-9552-2
DOI :
10.1109/ICT.2005.1520002
