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Statements

Subject Item
n2:RIV%2F00216305%3A26620%2F12%3APU96914%21RIV13-MSM-26620___
rdf:type
skos:Concept n7:Vysledek
dcterms: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 noticed oscillations 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 current density. 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 might increa 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 noticed oscillations 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 current density. 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 might increa
dcterms:title
Can the use of pulsed direct current induce oscillation in the applied pressure during spark plasma sintering? Can the use of pulsed direct current induce oscillation in the applied pressure during spark plasma sintering?
skos:prefLabel
Can the use of pulsed direct current induce oscillation in the applied pressure during spark plasma sintering? Can the use of pulsed direct current induce oscillation in the applied pressure during spark plasma sintering?
skos:notation
RIV/00216305:26620/12:PU96914!RIV13-MSM-26620___
n7:predkladatel
n8:orjk%3A26620
n3:aktivita
n17:I
n3:aktivity
I
n3:cisloPeriodika
1-2
n3:dodaniDat
n16:2013
n3:domaciTvurceVysledku
n4:1956930
n3:druhVysledku
n12:J
n3:duvernostUdaju
n18:S
n3:entitaPredkladatele
n6:predkladatel
n3:idSjednocenehoVysledku
125894
n3:idVysledku
RIV/00216305:26620/12:PU96914
n3:jazykVysledku
n5:eng
n3:klicovaSlova
sintering, thermomechanical processing, SPS
n3:klicoveSlovo
n13:thermomechanical%20processing n13:sintering n13:SPS
n3:kodStatuVydavatele
JP - Japonsko
n3:kontrolniKodProRIV
[B294F5313D18]
n3:nazevZdroje
SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS
n3:obor
n9:JH
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
4
n3:rokUplatneniVysledku
n16:2012
n3:svazekPeriodika
13
n3:tvurceVysledku
Nygren, Mats Salamon, David Eriksson, Mirva Shen, Zhijian
n3:wos
000301043500008
s:issn
1468-6996
s:numberOfPages
6
n10:organizacniJednotka
26620