Ultrahigh Temperature Flash Sintering of Binder-Less Tungsten Carbide within 6 s

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F21%3A10437118" target="_blank" >RIV/00216208:11310/21:10437118 - isvavai.cz</a>

Alternative codes found

RIV/61389021:_____/21:00567548

Result on the web

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=7TlYbY~rqG" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=7TlYbY~rqG</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/ma14247655" target="_blank" >10.3390/ma14247655</a>

Result language

angličtina

Original language name

Ultrahigh Temperature Flash Sintering of Binder-Less Tungsten Carbide within 6 s

Original language description

We report on an ultrarapid (6 s) consolidation of binder-less WC using a novel Ultrahigh temperature Flash Sintering (UFS) approach. The UFS technique bridges the gap between electric resistance sintering (MUCH LESS-THAN1 s) and flash spark plasma sintering (20-60 s). Compared to the well-established spark plasma sintering, the proposed approach results in improved energy efficiency with massive energy and time savings while maintaining a comparable relative density (94.6%) and Vickers hardness of 2124 HV. The novelty of this work relies on (i) multiple steps current discharge profile to suit the rapid change of electrical conductivity experienced by the sintering powder, (ii) upgraded low thermal inertia CFC dies and (iii) ultra-high consolidation temperature approaching 2750 degrees C. Compared to SPS process, the UFS process is highly energy efficient (approximate to 200 times faster and it consumes approximate to 95% less energy) and it holds the promise of energy efficient and ultrafast consolidation of several conductive refractory compounds.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10402 - Inorganic and nuclear chemistry

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Materials [online]

ISSN

1996-1944

e-ISSN

—

Volume of the periodical

14

Issue of the periodical within the volume

24

Country of publishing house

CH - SWITZERLAND

Number of pages

11

Pages from-to

7655

UT code for WoS article

000738460400001

EID of the result in the Scopus database

2-s2.0-85121311021