 |
NEW
CER TOP |
|
|
| PFM ALLOYS |
| |
|
Chemical composition |
| Au |
Pd |
Ag |
In |
Ga |
Ru |
Au&PGM |
| 2.0% |
75.0% |
10.0% |
6.0% |
6.6% |
X |
77.4% |
|
X=<1,0%
|
| Technical
data: |
|
Density
g/cm³ |
11.2 |
Yield strength MPa |
620 – 680 |
|
Melting range °C |
1150–1295 |
Elongation % |
34 – 29 |
|
Casting temperature°C |
1400 |
Tensile Strength MPa |
800 – 915 |
|
TEC 25-500°C-25-600°C 10-6K-1 |
14.0–14.3 |
Vickers hardness HV5/30 |
270–320-340 |
|
Modulus of elasticity GPa |
110 |
Crucible |
ceramic |
|
| Solders |
| Pre-solder |
SOLDER 1120 (1145°C) |
| Post-solder: |
SOLDER K 10/5 (750°C) Z - SOLDER LFC
(650°C) |
|
| Corrosion
resistance |
The electrochemical properties of this alloy were
evaluated in an electrochemical cell built according
to standards defined in ISO 10271.
The following results were obtained: |
| Eocp
= 70 mV |
Ep = 960 mV |
I300
= 0.308µA◦cm-² |
Ip = 6.22µA◦cm-² |
|
| The high
value of the breakdown potential (Ep 960 mV) with
the low current density at 300 mV (I300
= 0.308µA◦cm-²) indicate the excellent
corrosion resistance of this alloy. |
| Cytotoxicity
testing |
| Cytotoxicity
of NEW CER TOP alloy has been evaluated according
to ISO 10993-5 standard, using the L-929 (mouse
fibroblasts) cell line. |
| Results
have confirmed the perfect cytocompatibility of
this alloy. Cells behaviour and function were definitely
similar to those measured in tests involving pure
gold, that is the paradigmatic non-toxic material. |
| International
standards: |
| ISO 9693:1999;
ISO 10271:2001; ISO 10993-5:1999 |
| Specific
properties |
| :: |
PFM
alloy, white colour |
| :: |
Copper free |
| :: |
Micro Grain structure:
high casting precision |
| :: |
Ideal
for single crowns, long bridges and millings |
| :: |
Easy
to polish |
|
| |
