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Effect of Microstructural Control on Thermoelectric Properties of Hot‐Pressed Aluminum‐Doped Zinc Oxide
Author(s) -
Fujishiro Yoshinobu,
Miyata Motoyuki,
Awano Masanobu,
Maeda Kunihiro
Publication year - 2003
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.2003.tb03610.x
Subject(s) - materials science , nanocrystalline material , crystallite , hot pressing , coprecipitation , thermoelectric effect , metallurgy , thermal conductivity , doping , chemical engineering , sintering , zinc , thermoelectric materials , seebeck coefficient , aluminium , oxide , mineralogy , composite material , nanotechnology , chemistry , optoelectronics , physics , engineering , thermodynamics
The thermal conductivity of polycrystalline Al‐doped ZnO was controlled through the fabrication of nanostructured polycrystalline materials, by hot‐pressing nanosized Zn 1– x Al x O ( x = 0.01, 0.02) particles, which were synthesized by a coprecipitation and spray‐drying method. This process resulted in an improved thermoelectric power factor because of the nanosized Zn 0.99 Al 0.01 O particles of the polycrystalline products. The thermal conductivity also was decreased as a result of the formation of nanocrystalline Zn 0.99 Al 0.01 O.