Hydroxyapatite and Other Biomedical Coatings by Electrophoretic Deposition - Biological and Biomedical Coatings: Processing and Characterization - page 104

TABLE 3.3 (Continued)
Summary of Reported Work on Aqueous and Organic Electrophoretic Deposition of Other Bioceramics

Particle
Size

Medium
Type

Solids
Loading

Voltage
(V)

Time
(min)

Temp.
(°C)

Heat
Treatment

Deposit
Properties Coating Substrate SuspensionMedium Reference

Zeolite
(Clinoptilolite)

Nonaqueous Anode: stainless

steel
Cathode:
stainless steel

Medium: ethanol
Binder: TEOS g , NaOH

8 g/L 50-200 5.0 25 No cracking 83

150 μm

CaSiO 3
(Wollastonite)

1.7-3.7 μm Aqueous

versus
nonaqueous

Anode:
austenitic steel
Cathode:
austenitic steel
Electrode
separation:
1 cm

Medium: H 2 O, ethanol 7.5 g/L 50 3 25 1100°-

1300°C,
1 h

Porous thick
ilm

84

PEEK h 20 μm Nonaqueous Anode: Nitinol

wires on
stainless steel
Cathode:
stainless steel
Electrode
separation:
2.0 cm

Medium: ethanol
pH adjustment: NaOH
Dispersants: HCl

1-6 wt.% 3-50 2-20 25 340°C,

0.33 h, Ar

Deposit
thickness:
10-15 μm,
no cracking

85

PEEK h +
Bioglass ®

20 μm

1-50 μm

a PVA, polyvinyl alcohol.
b HIPed, hot isostatically pressed.
c YSZ, yttria partially stabilized zirconia.
d CeSZ, ceria partially stabilized zirconia.
e CSZ, cubic stabilized zirconia.
f PVB, polyvinyl butyral.
g TEOS, tetraethyl orthosilicate.
h PEEK, polyetheretherketone.