Open AccessPreparation and thermoelectric properties of β-Zn4Sb3/Zn1-δAlδO
Author(s) -
周丽梅,
李炜,
蒋俊,
陈建敏,
李勇,
许高杰
Publication year - 2011
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.60.067201
Subject(s) - spark plasma sintering , materials science , thermoelectric effect , seebeck coefficient , thermal conductivity , electrical resistivity and conductivity , thermoelectric materials , composite number , atmospheric temperature range , composite material , analytical chemistry (journal) , sintering , thermodynamics , chemistry , physics , chromatography , quantum mechanics
Single-phased β-Zn4Sb3 and β-Zn4Sb3/ Zn1-δAlδO composites with different amounts of Zn1-δAlδO (AZO) are prepared by the combination of vacuum melting and spark plasma sintering (SPS). Thermoelectric properties of the materials are investigated in a temperature range from 300 K to 673 K. As a result, the electrical conductivity of each sample increases while the Seebeck coefficient and the thermal conductivity decrease with the increase of AZO. The maximum ZT value of the composite reaches 1.16 at 673 K when the amount of AZO is 0.2 wt%, which is higher than that for the single-phased β-Zn4Sb3 (1.03).