Electrophoretic deposition behavior of ceria-stabilized zirconia/alumina powder.
The aim of this study was to evaluate the electrophoretic deposition (EPD) behavior of ceria-stabilized zirconia/alumina (Ce-TZP/Al2O3) granulated powder. Two types of slurry with powder-to-solvent ratios of 10 wt% and 20 wt% were used. Zeta potential of the slurries was measured using a spectrometer at different pH levels. Then, EPD was performed to measure the weight of the deposited particles at varying pH levels and at two voltages (50 V and 100 V). The isoelectric point of Ce-TZP/Al2O3 mixed powder was approximately at pH 8.5. When EPD was performed, deposition of ceramic particles was typically observed in the range of pH 3 to pH 7, with the greatest deposition found at around pH 7. Moreover, the deposition of ceramic particles increased with increase in slurry concentration and voltage.
Nakamura
Takashi
T
Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka, Japan. tnakamur@dent.osaka-u.ac.jp
Nishida
Hisataka
H
Sekino
Tohru
T
Nawa
Masahiro
M
Wakabayashi
Kazumichi
K
Kinuta
Soichiro
S
Mutobe
Yoshihiko
Y
Yatani
Hirofumi
H
D000537:Aluminum Oxide / Q000737:chemistry*; D002563:Cerium / Q000737:chemistry*; D003776:Dental Porcelain / Q000737:chemistry*; D017267:Dental Prosthesis Design; D004586:Electrophoresis; D007526:Isoelectric Point; D008422:Materials Testing; D053761:Nanocomposites; D011199:Potentiometry; D011208:Powders; D012997:Solvents; D015040:Zirconium / Q000737:chemistry*
C475766:Ce-TZP-Al2O3; D011208:Powders; D012997:Solvents; D003776:Dental Porcelain; D002563:Cerium; D015040:Zirconium; D000537:Aluminum Oxide; C028541:zirconium oxide