Can the use of pulsed direct current induce oscillation in the applied pressure during spark plasma sintering?

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F12%3APU96914" target="_blank" >RIV/00216305:26620/12:PU96914 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Can the use of pulsed direct current induce oscillation in the applied pressure during spark plasma sintering?

Original language description

The spark plasma sintering (SPS) process is known for its rapid densification of metals and ceramics. The mechanism behind this rapid densification has been discussed during the last few decades and is yet uncertain. During our SPS experiments we noticedoscillations in the applied pressure, related to a change in electric current. In this study, we investigated the effect of pulsed electrical current on the applied mechanical pressure and related changes in temperature. We eliminated the effect of sample shrinkage in the SPS setup and used a transparent quartz die allowing direct observation of the sample. We found that the use of pulsed direct electric current in our apparatus induces pressure oscillations with the amplitude depending on the currentdensity. While sintering Ti samples we observed temperature oscillations resulting from pressure oscillations, which we attribute to magnetic forces generated within the SPS apparatus. The described current?pressure?temperature relations

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JH - Ceramics, fire-proof materials and glass

OECD FORD branch

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Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2012

Confidentiality

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

Name of the periodical

SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS

ISSN

1468-6996

e-ISSN

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Volume of the periodical

13

Issue of the periodical within the volume

1-2

Country of publishing house

JP - JAPAN

Number of pages

6

Pages from-to

"015005"-"015005-6"

UT code for WoS article

000301043500008

EID of the result in the Scopus database

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