TiB2/AlN/Cu Functionally Graded Materials (FGMs) Fabricated by Spark Plasma Sintering (SPS) Method
The TiB2/(TiB2+AlN)/AlN/(AlN+Cu)/Cu functionally graded materials were successfully fabricated via spark plasma sintering (SPS) method, in which a temperature gradient was achieved by using a specially designed mold and different sintering sequences were carried out. XRD analysis and SEM observations were respectively performed upon the TiB2/AlN/Cu composites. The results show that no new phases were introduced into the composites after mechanically milling or SPS process. The layered composites were found to have a dense microstructure, which changes gradually along a composition gradient. The present FGMs are developed as electrode materials of a solar thermoelectric module.
Wei Pan, Jianghong Gong, Chang-Chun Ge and Jing-Feng Li
S. Z. Jin et al., "TiB2/AlN/Cu Functionally Graded Materials (FGMs) Fabricated by Spark Plasma Sintering (SPS) Method", Key Engineering Materials, Vols. 280-283, pp. 1881-1884, 2005