In:
Modern Physics Letters B, World Scientific Pub Co Pte Ltd, Vol. 30, No. 07 ( 2016-03-20), p. 1650087-
Abstract:
Ba 8 Cu 6 Ge[Formula: see text]Si[Formula: see text] were successfully synthesized by a simple high pressure and high temperature (HPHT) method to investigate the microstructures and thermoelectric (TE) properties. After high pressure synthesis, a highly dense bulk material with lots of fine-layered structure, lattice defects and disorders has been obtained. As expected, the thermal conductivity decreased greatly and the ZT value has been improved significantly, which reaches up to 0.43 at around 773 K. Comparing with other methods, HPHT could shorten the synthesis time from several days to half an hour. It reveals that the HPHT method will become an effective approach for optimizing the TE performance of these materials.
Type of Medium:
Online Resource
ISSN:
0217-9849
,
1793-6640
DOI:
10.1142/S0217984916500871
Language:
English
Publisher:
World Scientific Pub Co Pte Ltd
Publication Date:
2016
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