TY - JOUR
T1 - Densification and microstructure of spark plasma sintered 7YSZ–Gd 2 O 3 ceramic nano-composites
AU - Serrano Pérez, E.
AU - Martinez Gutierrez, H.
AU - Martinez Gonzalez, K. J.
AU - Marín Moares, E.
AU - Juárez López, F.
N1 - Publisher Copyright:
© 2017 The Ceramic Society of Japan and the Korean Ceramic Society
PY - 2017/9
Y1 - 2017/9
N2 - Spark plasma sintering (SPS) technique was used to densify 7 mol% yttria-stabilized zirconia (7YSZ) powder with Gd 2 O 3 -particles, at temperatures ranging between 1000 and 1200 °C. Fine dispersion of Gd 2 O 3 -particles into a full-densified matrix was achieved. Shrinkage and microstructure, as well as porosity were investigated. The fine Gd 2 O 3 -particles distributed into 7YSZ matrix have influence over the sintering consolidation and final microstructure. An increment in the spark plasma sintering temperature around 70 °C is detected when Gd 2 O 3 particles are present. The thermal characterization was performed using the photothermal infrared radiometry technique. Both thermal diffusivity and thermal conductivity display a similar sigmoidal (Boltzmann type) behavior with the Gd 2 O 3 concentration in the samples.
AB - Spark plasma sintering (SPS) technique was used to densify 7 mol% yttria-stabilized zirconia (7YSZ) powder with Gd 2 O 3 -particles, at temperatures ranging between 1000 and 1200 °C. Fine dispersion of Gd 2 O 3 -particles into a full-densified matrix was achieved. Shrinkage and microstructure, as well as porosity were investigated. The fine Gd 2 O 3 -particles distributed into 7YSZ matrix have influence over the sintering consolidation and final microstructure. An increment in the spark plasma sintering temperature around 70 °C is detected when Gd 2 O 3 particles are present. The thermal characterization was performed using the photothermal infrared radiometry technique. Both thermal diffusivity and thermal conductivity display a similar sigmoidal (Boltzmann type) behavior with the Gd 2 O 3 concentration in the samples.
KW - Rare earths
KW - Spark plasma sintering
KW - Yttria-stabilized zirconia
UR - http://www.scopus.com/inward/record.url?scp=85028987862&partnerID=8YFLogxK
U2 - 10.1016/j.jascer.2017.05.004
DO - 10.1016/j.jascer.2017.05.004
M3 - Artículo
SN - 2187-0764
VL - 5
SP - 266
EP - 275
JO - Journal of Asian Ceramic Societies
JF - Journal of Asian Ceramic Societies
IS - 3
ER -