Evolution of carbon and oxygen concentration in tungsten prepared by field assisted sintering and its effect on ductility
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F21%3A10248447" target="_blank" >RIV/61989100:27360/21:10248447 - isvavai.cz</a>
Alternative codes found
RIV/68081723:_____/21:00542799 RIV/61389021:_____/21:00542799 RIV/68407700:21340/21:00347691
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0263436821000317?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0263436821000317?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ijrmhm.2021.105499" target="_blank" >10.1016/j.ijrmhm.2021.105499</a>
Alternative languages
Result language
angličtina
Original language name
Evolution of carbon and oxygen concentration in tungsten prepared by field assisted sintering and its effect on ductility
Original language description
Good thermal conductivity, high-temperature strength and low tritium retention favour the use of tungsten as a plasma facing material for fusion reactors. However, high ductile-to-brittle transition temperature (DBTT) of tungsten limits its application. The most viable way of industrial-scale tungsten production is powder metallurgy. Conventional methods use high temperatures and long dwell times. However, this can degrade the mechanical properties of tungsten due to excessive grain growth. Therefore, new sintering techniques and unconventional sintering parameters are explored. The aim is to achieve less demanding single step processing method with the potential to improve mechanical properties. In this study, pure tungsten samples were prepared by Field Assisted Sintering using different dwell times, atmospheres and foils. The effect of the parameters on the impurity concentration was analysed and the mechanical behaviour was evaluated using stress-strain analysis. Significant improvement in mechanical performance has been reached for short dwell times (2 min) and vacuum or Ar + H2 atmosphere.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20501 - Materials engineering
Result continuities
Project
<a href="/en/project/GA20-18392S" target="_blank" >GA20-18392S: Tailoring thermal stability of W-Cr based alloys for fusion application</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
International Journal of Refractory Metals and Hard Materials
ISSN
0263-4368
e-ISSN
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Volume of the periodical
97
Issue of the periodical within the volume
December
Country of publishing house
US - UNITED STATES
Number of pages
12
Pages from-to
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UT code for WoS article
000638214500011
EID of the result in the Scopus database
2-s2.0-85100907090