 |
KERAMIT
SILVER |
|
|
| PFM ALLOYS |
| |
|
Chemical composition |
| Au |
Pd |
Ag |
In |
Sn |
Ru |
Au&PGM |
| 52.0% |
26.9% |
16.0 |
2.5% |
2.5 |
X |
79.0% |
|
X=<1,0%
|
| Technical
data: |
|
Density
g/cm³ |
13.8 |
Yield strength MPa |
520 - 600 |
|
Melting range °C |
1180-1260 |
Elongation % |
20 - 10 |
|
Casting temperature°C |
1410 |
Tensile strength MPa |
670 - 700 |
|
TEC 25-500°C-25-600°C 10-6K-1 |
14.3-14.5 |
Vickers hardness HV5/30 |
225–240-300 |
|
Modulus of elasticity GPa |
118 |
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
= 148 mV |
Ep = 865 mV |
I300
= 0.25µA◦cm-² |
Ip = 6.94µA◦cm-² |
|
| The high
value of the breakdown potential (Ep 865 mV) with
the low current density at 300 mV (I300
= 0.25µA◦cm-²) indicate the excellent
corrosion resistance of this alloy. |
| Cytotoxicity
testing |
| Cytotoxicity
of KERAMIT SILVER 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 |
| :: |
Copper
free |
| :: |
Low density |
| :: |
Micro Grain structure:
high casting precision |
| :: |
Very good metal-ceramic adhesion |
| :: |
Ideal for crowns,onlays, short
and long bridges, millings and implantology |
| |
|
|
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