Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 419, Issue 1-2, Pages 306-311Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2005.09.071
Keywords
bismuth telluride; anisotropy; spark plasma sintering (SPS) bonding; crystallographic orientation; p-n module
Ask authors/readers for more resources
The p-type (Bi2Te3)(0.2)(Sb2Te3)(0.8) and n-type (Bi2Se3)(0.05)(Bi2Te3)(0.95) alloys were fabricated by the shear extrusion to enhance texture evolution. Transverse Direction (TD) inverse pole figure analysis via electron backscattered diffraction patterns (EBSP) showed that most of the crystallographic orientations of shear-extruded sample were well aligned in the range deviating from 60 degrees to 90 degrees from the c-axis. The electric resistivity of p-type controlled to be 1.008 x 10(-5) Omega m, which is nearly equal to that of unidirectionally grown sample. The maximum figure of merit for p-type alloy was found to be z = 3.03 x 10(-3) K-1 and for the n-type, z = 2.26 x 10(-3) K-1. Thermoelectric p-n modules were prepared via the spark plasma sintering (SPS) solid bonding for evaluation on their thermoelectricity. The power generation characteristic of p-n modules was also evaluated for various temperature differences between cold and hot sources. (c) 2005 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available