@article{ART002618133},
author={ Yeoung-Gyun Yang and Ji-Yeon Kwak and Heon Kong and Sang-Jin Lee },
title={Sintering behavior of nano yttria powder compacts fabricated by various forming processes},
journal={Journal of Ceramic Processing Research},
issn={1229-9162},
year={2020},
volume={21},
number={4},
pages={450-455},
doi={10.36410/jcpr.2020.21.4.450},
url={http://dx.doi.org/10.36410/jcpr.2020.21.4.450}

TY - JOUR
AU - Yeoung-Gyun Yang
AU - Ji-Yeon Kwak
AU - Heon Kong
AU - Sang-Jin Lee
TI - Sintering behavior of nano yttria powder compacts fabricated by various forming processes
T2 - Journal of Ceramic Processing Research
PY - 2020
VL - 21
IS - 4
PB - 한양대학교 청정에너지연구소
SP - 450-455
SN - 1229-9162
AB - The sintering behavior of 10 nm sized, nano yttria powder was investigated with powder compacts prepared by variousforming methods with an aqueous system. A well dispersed nano yttria slurry and gelation conditions were determined byexamining rheological behavior according to the pH and the amount of dispersant content. Slip casting was performed on theslurry prepared under optimum dispersion conditions. For comparison, the powder compacts were prepared by uni-axiallypressing the nano powder and the gel powder. When a granular-type gel powder was applied, dry pressing was conducted withless agglomeration, and the green density was improved, unlike the case of using the nano-powder. The most homogeneousmicrostructure was observed for the slip casting sample. As a result of sintering at 1650 oC for 2 hours in atmosphericconditions, the green sample prepared by slip casting showed the highest densification of 98% relative density with 41%shrinkage. In particular, fracture behavior and circular pores were present in the intra-granular area, unlike the cases of pressformed samples. The powder compact using gel powder showed higher sintered density of 93% compared with the pressformed powder compact using nano powder.
KW - Nano yttria, Slip casting, Sintering, Gelation, Powder forming
DO - 10.36410/jcpr.2020.21.4.450
UR - http://dx.doi.org/10.36410/jcpr.2020.21.4.450
ER -

Yeoung-Gyun Yang , Ji-Yeon Kwak , Heon Kong and Sang-Jin Lee . 2020, “Sintering behavior of nano yttria powder compacts fabricated by various forming processes”, Journal of Ceramic Processing Research, vol. 21, no. 4, pp. 450-455. Available from: doi:10.36410/jcpr.2020.21.4.450

Yeoung-Gyun Yang Ji-Yeon Kwak et al. Heon Kong Sang-Jin Lee “Sintering behavior of nano yttria powder compacts fabricated by various forming processes” Journal of Ceramic Processing Research 21.4 pp. 450-455 (2020): 450.

Yeoung-Gyun Yang , Ji-Yeon Kwak , Heon Kong , Sang-Jin Lee . Sintering behavior of nano yttria powder compacts fabricated by various forming processes Journal of Ceramic Processing Research [Internet]. 2020; 21( 4), : 450-455. Available from: doi:10.36410/jcpr.2020.21.4.450

Yeoung-Gyun Yang , Ji-Yeon Kwak , Heon Kong and Sang-Jin Lee . “Sintering behavior of nano yttria powder compacts fabricated by various forming processes” Journal of Ceramic Processing Research 21, no.4 (2020): 450-455. doi: 10.36410/jcpr.2020.21.4.450