Tantalum Oxide Dielectrics Fired by Spark Plasma Sintering

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F18%3A00495674" target="_blank" >RIV/61389021:_____/18:00495674 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21230/18:00324268
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Tantalum Oxide Dielectrics Fired by Spark Plasma Sintering
Original language description
Tantalum pentoxide Ta2O5 was sintered by spark plasma sintering (SPS) using a commercial micrometric powder. Influence of the SPS process and subsequent annealing on microstructure, phase composition and dielectric properties was studied. After sintering the product is oxygen-deficient because of low pressure in the sintering chamber. The evacuation is necessary for the process because of carbon pistons and carbon die used for powder compaction. After subsequent annealing in air the color of the product Ta2O5 is restored that is proper indication of the re-oxidation. Dielectric properties were studied in a broad range of frequencies. Both as-sintered and annealed samples exhibit high relative permittivity about 61 to 68, loss factor about 0.001 and resistivity in order 10 E11 Ωm.
Czech name
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Czech description
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of the EURO PM2018 – European powder metallurgy association (EPMA) Congress and Exhibition
ISBN
978-1-899072-50-7
ISSN
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e-ISSN
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Number of pages
6
Pages from-to
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Publisher name
European powder metallurgy association
Place of publication
EPMA, Haughmond View, Sitka Drive, Shrewsburry
Event location
Bilbao
Event date
Oct 14, 2018
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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