Nanosized and spheroidized tungsten and tungsten carbide powders
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F03%3A00007904" target="_blank" >RIV/60461373:22310/03:00007904 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Nanosized and spheroidized tungsten and tungsten carbide powders
Original language description
Historical pursue of the first spherical tungsten particles appearence lead us till the article on tungsten discovery by Spanish brothers D´Elhuyar in 1783 [1]. The authors used the zinnvaldite ore of Czech provenience for tungsten oxide preparation. After the subsequent reduction of oxide by carbon in a closed crucible they observed pin´s-head size tungsten balls. No later developed technology, that applies carbon for reduction of tungsten oxidic compounds produces such balls. Even thermal sprayedtungsten particles do not show the ideal spherical shape. The first preparation of well shaped globular tungsten particles by plasma spraying was described by Austrian authors in 1963 [2]. Similar looking rounded W-particles can be obtained by leachin g of #heavy metal composites# (W-Ni-Cu pseudoalloys).
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
CA - Inorganic chemistry
OECD FORD branch
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Result continuities
Project
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Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2003
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Sborník - 4th European Congress of Chemical Engineering
ISBN
84-88233-23-0
ISSN
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e-ISSN
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Number of pages
2
Pages from-to
79-80
Publisher name
ECCE
Place of publication
Nuernberg
Event location
Granada
Event date
Sep 21, 2003
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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