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Synthesis of new ceramics from powder mixtures using thermal plasma processing

Thin solid films Volume 390 Issue 1-2 Page 37-43
published_at 2001-06
2007020106.pdf
[fulltext] 2.72 MB
Title
Synthesis of new ceramics from powder mixtures using thermal plasma processing
Creators Fukumasa Osamu
Creator Keywords
Thermal plasma processing Plasma jet Synthesis of new ceramics β″-alumina Ferrite particles
The synthesis of thermoelectric materials (β″-alumina) for the alkali metal thermoelectric converter (AMTEC) has been studied using a newly designed plasma jet reactor. Under not only atmospheric pressure but also low pressure, thin films of β″-alumina are successfully synthesized for the first time from powder mixtures of α-Al_2O_3, Na_2CO_3 and MgO. The powder-mixing ratio, jet power and substrate position strongly affect the synthesis of β″-alumina, which is found to be correlated with jet temperature. Synthesis of ferrite particles is also discussed. Under both atmospheric and lower pressures, ferrite particles are successfully synthesized from powder mixtures of Fe_2O_3, ZnO, NiO and CuO. In the high temperature region of the plasma jet, ferrite particles with high purity can be synthesized.
Subjects
電気電子工学 ( Other)
Languages eng
Resource Type journal article
Publishers Elsevier
Date Issued 2001-06
File Version Author’s Original
Access Rights open access
Relations
[ISSN]0040-6090
[NCID]AA00863068
https://doi.org/10.1016/S0040-6090(01)00922-1
[isPartOf] [URI]http://www.sciencedirect.com/science/journal/00406090
Schools 大学院理工学研究科(工学)