Characterization and Tribological Behavior of Electroless-Deposited Ni-P-PTFE Films on NBR Substrates for Dynamic Contact Applications
Abstract
:1. Introduction
2. Materials and Methods
2.1. Surface Pre-Treatment and Activation
2.2. Electroless Ni-P-PTFE Alloy Plating
2.3. Characterization
2.3.1. Wettability and Chemical Composition
2.3.2. Morphology and Crystalline Structure
2.3.3. Mechanical Properties
2.4. Tribological Behavior
3. Results
3.1. Surface Morphology
3.2. Influence of Cationic Surfactant CTAB
3.3. Coating Composition and Plating Rate
3.4. Crystalline Structure and Adhesion
3.5. Roughness and Wettability
3.6. Frictional Behavior
3.7. Wear Effects
4. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Composition and Operating Conditions | |
---|---|
NiSO4·6H2O (g/L) | 40 |
C6H5Na3O7·2H2O (g/L) | 20 |
NaH2PO2·H2O (g/L) | 40 |
C2H6BN (DMAB, g/L) PTFE (mL/L) CTAB (mg/L) | 2 0, 5, 7, 10 0, 200, 500, 800 |
Temperature (°C) | 60 ± 3 |
pH (adjusted with 3% H2SO4) | 5.0 ± 0.2 |
Duration (min) | 60 |
NiSO4·6H2O (g/L) | 40 |
C6H5Na3O7·2H2O (g/L) | 20 |
Parameter | Ni-P | Ni-P-PTFE (5_2) | Ni-P-PTFE (7_8) |
---|---|---|---|
Adhesion (MPa) | 1.3 ± 0.1 | 1.6 ± 0.2 | 1.5 ± 0.1 |
Parameter | Ni-P | Ni-P-PTFE (5_2) | Ni-P-PTFE (7_8) |
---|---|---|---|
Ra (µm) | 3.15 | 2.41 | 4.20 |
C.A. (°) | 70 ± 6 | 136 ± 4 | 131 ± 5 |
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Vasconcelos, B.; Serra, R.; Oliveira, J.; Fonseca, C. Characterization and Tribological Behavior of Electroless-Deposited Ni-P-PTFE Films on NBR Substrates for Dynamic Contact Applications. Coatings 2022, 12, 1410. https://doi.org/10.3390/coatings12101410
Vasconcelos B, Serra R, Oliveira J, Fonseca C. Characterization and Tribological Behavior of Electroless-Deposited Ni-P-PTFE Films on NBR Substrates for Dynamic Contact Applications. Coatings. 2022; 12(10):1410. https://doi.org/10.3390/coatings12101410
Chicago/Turabian StyleVasconcelos, Beatriz, Ricardo Serra, João Oliveira, and Carlos Fonseca. 2022. "Characterization and Tribological Behavior of Electroless-Deposited Ni-P-PTFE Films on NBR Substrates for Dynamic Contact Applications" Coatings 12, no. 10: 1410. https://doi.org/10.3390/coatings12101410
APA StyleVasconcelos, B., Serra, R., Oliveira, J., & Fonseca, C. (2022). Characterization and Tribological Behavior of Electroless-Deposited Ni-P-PTFE Films on NBR Substrates for Dynamic Contact Applications. Coatings, 12(10), 1410. https://doi.org/10.3390/coatings12101410