Intensive particle rearrangement in the early stage of spark plasmasintering process

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F15%3APU118873" target="_blank" >RIV/00216305:26620/15:PU118873 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.jascer.2015.02.004" target="_blank" >http://dx.doi.org/10.1016/j.jascer.2015.02.004</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jascer.2015.02.004" target="_blank" >10.1016/j.jascer.2015.02.004</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Intensive particle rearrangement in the early stage of spark plasmasintering process

Popis výsledku v původním jazyce

The densification behaviors of 3 mol% yttria-stabilized tetragonal zirconia polycrystal (3Y-TZP) ceramicsduring spark plasma sintering (SPS) were analyzed both using the master sintering curve (MSC) approachand by evaluating the temperature dependent evolution of density and densification rate. It was foundthat densification curves could hardly be fitted using one apparent activation energy value by MSCconception, by which it indicated that more than one densification mechanisms were involved in SPS.Moreover, dependent neither on applied pressure (20–100 MPa) nor heating rates higher than 50◦C/min,the maximum densification rate had always been observed at rather similar ∼78% of theoretical density(TD) accompanied with negligible grain growth. An intensive particle rearrangement mechanism wasproposed to dominate the rapid densification to 78% TD in early stage of SPS process, by which it yieldedthe considerable faster densification rate than those achievable by diffusion-related processes.

Název v anglickém jazyce

Intensive particle rearrangement in the early stage of spark plasmasintering process

Popis výsledku anglicky

The densification behaviors of 3 mol% yttria-stabilized tetragonal zirconia polycrystal (3Y-TZP) ceramicsduring spark plasma sintering (SPS) were analyzed both using the master sintering curve (MSC) approachand by evaluating the temperature dependent evolution of density and densification rate. It was foundthat densification curves could hardly be fitted using one apparent activation energy value by MSCconception, by which it indicated that more than one densification mechanisms were involved in SPS.Moreover, dependent neither on applied pressure (20–100 MPa) nor heating rates higher than 50◦C/min,the maximum densification rate had always been observed at rather similar ∼78% of theoretical density(TD) accompanied with negligible grain growth. An intensive particle rearrangement mechanism wasproposed to dominate the rapid densification to 78% TD in early stage of SPS process, by which it yieldedthe considerable faster densification rate than those achievable by diffusion-related processes.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20504 - Ceramics

Projekt

<a href="/cs/project/GP13-08717P" target="_blank" >GP13-08717P: Efekt elektro-magnetického pole na slinování pokročilých keramických materiálů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Journal of Asian Ceramic Societies

ISSN

2187-0764

e-ISSN

—

Svazek periodika

3

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

JP - Japonsko

Počet stran výsledku

5

Strana od-do

183-187

Kód UT WoS článku

000218758400007

EID výsledku v databázi Scopus

2-s2.0-85001160303