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© ITC-AICE. 2009
E! 3792 ENIWEP TRIBOSTAND
Kick-off meeting
Paris 16th January 2009
Tribostand Meeting 16/01/09 |
© ITC-AICE. 2009
Index
1. Meeting agenda
2. Project diagram
3. Selected samples
4. Sample dimentions
5. Sample preparation
6. Selected tests
7. ITC tests
6.1 Porosity
6.2 Roughness
Tribostand Meeting 16/01/09 |
© ITC-AICE. 2009
1. Meeting agenda
8:30 – 9:00 Registration
9:00 – 10:00 IPR Contract
10:00 – 10:30 Funding and coordination issues. Further coordination of Tribostand: new co-ordinator to be nominated
10:30 – 10:45 Coffee break
10:45 – 11:15 Samples for the development of the project
11:15 – 13:30 Technical progress by group leaders
13:30 End of Meeting
Tribostand Meeting 16/01/09 |
© ITC-AICE. 2009
2. Project diagram
1 Bibliographic search
2 Selection of tests
5 Start-up of service 6.1 Submission of protocols
6.2 Dissemination of results
7 Project management
4 Study of the tests
3 Selection of equipment and samples
Tribostand Meeting 16/01/09 |
© ITC-AICE. 2009
3. Selected samples to test
SELECTED SAMPLES
MATERIAL NUMBER
Substrate CoatingNon-destuctive
testsDestructive
test
DLC coating
PVD coating
White opaque ceramic glass 2 samples 5 samples
Tribostand Meeting 16/01/09 |
© ITC-AICE. 2009
4. Sample dimentions
Test Test Leader Members Sample dimentions
Roughness ITC 6 100x100 mm
Chemical resistance ECP 3 ø 40 mm*
Nanoindentation AIN 5 50x50 mm
Microhardness TRIBOTECHNIC 4 50x50 mm
Coating thickness UC 6 ø 40 mm*
Scratch resistance AIN 6 25 x 50 mm
Porosity ITC 2 12x12 mm
Wear (Rotating) TEKNIKER 9 ø 40 mm
Wear (Reciprocating) UC 7 40x40 mm
Abrasion (Sand) IPN 3 40x20 mm
Abrasion (Taber) TEKNIKER 3 100x100 mm
Microtribology NPL 6 20x30 mm
Tribostand Meeting 16/01/09 |
© ITC-AICE. 2009
5. Sample preparation
• White opaque ceramic glass samples were prepared and sent to all partners, in order to be able to know the behaviour of the sample substrate
• Samples to be coated were cut as well. They were sent to AIN with the aim of coating them using both kinds of layers: DLC and PVD. The coating process is still in progress
• Samples were cut depending on the needings of each participant. These samples have been referenciated depending on their original piece of material
Tribostand Meeting 16/01/09 |
© ITC-AICE. 2009
6. Selected tests
Test Participants / Leader
Roughness ITC, TEKNIKER, AIN, IPN, ECP
Chemical resistance (corrosion)
KUL, TEKNIKER, ECP
Nanoindentation TEKNIKER, ITC, AIN, IPN
Microhardness ITC, AIN, TEKNIKER, TRIBOTECHNIC, FALEX
Coating thickness UC, ITC, TEKNIKER, AIN
Scratch resistance TEKNIKER, ITC, AIN, TRIBOTECHNIC, FALEX
Porosity TEKNIKER, ITC
Wear (Rotating) NPL, IPN, UC, TRIBOTECHNIC, TEKNIKER, AIN, ECP, ITC, FALEX
Wear (Reciprocating) NPL, IPN, UC, TRIBOTECHNIC, TEKNIKER, KUL, AIN, ITC, FALEX
Abrasion (Sand) TEKNIKER, IPN, FALEX
Abrasion (Taber) TEKNIKER, ITC, FALEX
Microtribology TEKNIKER, NPL, KUL, FALEX, TRIBOTECHNIC, ITC
Selected by ITC as co-ordinator
Tribostand Meeting 16/01/09 |
© ITC-AICE. 2009
7. ITC Tests | Porosity
Objective
Determination of sample porosity by means of an Optical Microscope OlympusBX60 joined at an image analysis program (Micro Image)
Procedure• Sample dimentions must be 10x10 mm
• Sample must be embedded and polished by means of a good polishing secuence, in order to avoid damage on the surface.
Ceramic substrate
Resin
Opaque ceramic glass
Tribostand Meeting 16/01/09 |
© ITC-AICE. 2009
7. ITC Tests | Porosity
Cloth BrandLubricant-Abrassive
Size of abrassive
TimeLoad/
Sample (N)
MD-Piano Struers Water Grane 120 1 min 20
MD-Allegro StruersDiaPro
Allegro/Large15-6 µm 4 min 20
MD-Plan Struers DiaPro Plan 15-3 µm 6 min 25
MD-Dur Struers DiaPro Dur 15-1 µm 3 min 25
MD-Mol Struers DiaPro Plan 15-3 µm 5 min 25
MicroCloth Buehler
MetaDi Supreme polycristalline
Diamond Suspensions
1 µm 1 min 25
Polishing secuence
Tribostand Meeting 16/01/09 |
© ITC-AICE. 2009
7. ITC Tests | Porosity
Obtained results after a test
0
10
20
30
40
50
60
70
80
90
100
0.1 1 10 100 1000Mean diameter (µm)
(%)
of
po
res
with
dia
me
ter
<
d50
d84
d16
Tribostand Meeting 16/01/09 |
© ITC-AICE. 2009
7. ITC Tests | Porosity
Test variables studied
Number of analyzed screens (10, 20, 30, 40 and 50)
Magnification (10x and 20x)
Technitian
Tribostand Meeting 16/01/09 |
© ITC-AICE. 2009
0
0,5
1
1,5
2
0,1 1 10 100 1000
Mean diameter (µm)
(%)
of p
ore
area
10 screens
20 screens
30 screens
40 screens
50 screens
7. ITC Tests | Porosity
Influence of the analysed screen number
0
10
20
30
40
50
60
70
80
90
100
0,1 1 10 100 1000Mean diameter (µm)
(%)
of p
ores
with
dia
met
er <
10 screens20 screens30 screens40 screens50 screens
Results
Tribostand Meeting 16/01/09 |
© ITC-AICE. 2009
7. ITC Tests | Porosity
Influence of the analysed screen number
Nº screens d16 (µm) d50 (µm) d84 (µm) (%)
10 4.6 10.0 18.1 1.3
20 4.5 9.9 17.6 1.2
30 4.6 9.9 17.6 1.3
40 4.6 10.4 19.2 1.5
50 4.7 10.5 19.9 1.5
Results
Tribostand Meeting 16/01/09 |
© ITC-AICE. 2009
0
0.5
1
1.5
2
0.1 1 10 100 1000Mean diameter (µm)
(%)
of p
ore
area
Objective 10x
Objective 20x
7. ITC Tests | Porosity
Influence of the magnification
(10x and 20x)
0
10
20
30
40
50
60
70
80
90
100
0.1 1 10 100 1000
Mean diameter (µm)
(%)
of p
ores
with
dia
me
ter
<
Objective 10x
Objective 20x
Results
Tribostand Meeting 16/01/09 |
© ITC-AICE. 2009
7. ITC Tests | Porosity
Influence of the magnification (10x and 20x)
Objetive d16 (µm) d50 (µm) d84 (µm) (%)
10x 17.9 39.6 63.7 23.2
20x 19.2 36.3 57.5 21.8
Results
Tribostand Meeting 16/01/09 |
© ITC-AICE. 2009
0
0.5
1
1.5
2
0.1 1 10 100 1000Mean diameter (µm)
(%)
of p
ore
area
Technician 1
Technician 2
Technician 3
7. ITC Tests | Porosity
Influence of the technician
0
10
20
30
40
50
60
70
80
90
100
0.1 1 10 100 1000
Mean diameter (µm)
(%)
of p
ores
with
dia
met
er <
Technician 1
Technician 2
Technician 3
Results
Tribostand Meeting 16/01/09 |
© ITC-AICE. 2009
7. ITC Tests | Porosity
Influence of the technitian
Transparent glaze
d16 (µm) d50 (µm) d84 (µm) (%)
Technician 1 5.0 10.5 23.5 1.4
Technician 2 4.3 9.1 16.2 1.4
Technician 3 4.7 10.5 19.9 1.5
Results:
Tribostand Meeting 16/01/09 |
© ITC-AICE. 2009
7. ITC Tests | Porosity
Conclusions
Influence of analysed screen number
No less than 40 screens. If the sample is really porous, this number has to be increased
Influence of the magnification
10x or 20x depending on the thickness of the coating
Influence of the technitian
Only if technitians are used to carrying out this kind of test, there are no such a difference between obtained results
Tribostand Meeting 16/01/09 |
© ITC-AICE. 2009
7. ITC Tests | Roughness
Objective
• Comparison between contact and optical profilometry in order to calculate roughness parameters
• Determination of test variables to obtain roughness parameters from selected samples
• Study of the influence of filters
Tribostand Meeting 16/01/09 |
© ITC-AICE. 2009
7. ITC Tests| Roughness
Equipments
Optical profilometer Contact profilometer
Veeco NT1100Hommelwerke T8000
Tribostand Meeting 16/01/09 |
© ITC-AICE. 2009
7. ITC Tests| Roughness
Roughness parameters
Ra: Arithmetic mean roughness value over the entire profile
M
kjk
N
ja Z
MNS
11
1
N
i
ia ZN
R1
1
Sa: Arithmetic mean roughness value over the entire measured array
Tribostand Meeting 16/01/09 |
© ITC-AICE. 2009
7. ITC Tests| Roughness
Contour map obtained by contact profilometry
Results
Tribostand Meeting 16/01/09 |
© ITC-AICE. 2009
7. ITC Tests| Roughness
Contour map obtained by optical profilometry
Results
Tribostand Meeting 16/01/09 |
© ITC-AICE. 2009
7. ITC Tests | Roughness
Comparison between Ra and Sa (cut-off 0.08)
Parameter Compared filtersOptical
profilometry
Contact profilometr
y
RaGaussian – ISO4287 0.40 ± 0.06 0.35 ± 0.03
Recursive 2RC – DIN4768 0.45 ± 0.07 0.37 ± 0.03
Sa Fourier – ISO4287 1.17 ± 0.07 1.20 ± 0.05
Results
Tribostand Meeting 16/01/09 |
© ITC-AICE. 2009
7. ITC Tests| Roughness
Conclusions
Roughness parameters between techniques can be compared if they are measured under the same conditions: filter, cut-off and measured area
Selected filters does not introduce any difference in the roughness parameters in the range of work studied
(Ra < 4µm (cut-off 0.8mm))
It is convenient to use Gaussian filter (optical profilometry) and ISO4287 filter (contact perfilometry) in order to avoid phase distorsion in the measures
DISEÑO Y ARQUITECTURA
UNIÓN EUROPEAFondos Estructurales
I n v e r t i m o s e n s u F u t u r o
Thanks for your attention