Highly Dispersed Ag2S Nanoparticles: In Situ Synthesis, Size Control, and Modification to Mechanical and Tribological Properties towards Nanocomposite Coatings
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.2. Controllable In Situ Synthesis of Ag2S Nanoparticles
2.3. Evaluation of Mechanical Properties
2.4. Friction and Wear Test
3. Results and Discussion
3.1. Size and Morphology of the In Situ Synthesized Ag2S Nanoparticles
3.2. Effect of Ag2S Nanoparticles on Mechanical Properties of Nanocomposite Coatings
3.3. Effect of Ag2S Nanoparticles on Tribological Properties of Nanocomposite Coatings
3.4. Analyses of Wear Track Morphology and Wear Mechanism
4. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Samples | S-C0 | S-C2 | S-C4 | S-C6 |
---|---|---|---|---|
Micro-hardness (H, Mpa) | 266 | 316 | 372 | 317 |
Elastic modulus (E, Mpa) | 3322 | 4963 | 6497 | 5448 |
Indentation depth (nm) | 1600.35 | 1233.36 | 1192.20 | 1261.70 |
Storage modulus (E’, Mpa) | 2423.83 | 3065.64 | 3552.48 | 3143.89 |
Loss factor (Tanδ) | 0.3348 | 0.2704 | 0.2413 | 0.2529 |
Glass transition temperature (Tg, °C) | 153 | 165 | 175 | 164 |
Critical load (Lc, N) | 7.76 ± 0.12 | 10.88 ± 0.25 | 12.64 ± 0.27 | 9.84 ± 0.08 |
Samples | S-C0 | S-C2 | S-C4 | S-C6 |
---|---|---|---|---|
Average friction coefficient (µ) | 0.284 | 0.270 | 0.210 | 0.265 |
Wear rate (W, mm3·N−1·m−1) | 1.80 × 10−4 | 1.32 × 10−4 | 9.24 × 10−5 | 1.18 × 10−4 |
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Ma, Y.; Zhao, Z.; Xian, Y.; Wan, H.; Ye, Y.; Chen, L.; Zhou, H.; Chen, J. Highly Dispersed Ag2S Nanoparticles: In Situ Synthesis, Size Control, and Modification to Mechanical and Tribological Properties towards Nanocomposite Coatings. Nanomaterials 2019, 9, 1308. https://doi.org/10.3390/nano9091308
Ma Y, Zhao Z, Xian Y, Wan H, Ye Y, Chen L, Zhou H, Chen J. Highly Dispersed Ag2S Nanoparticles: In Situ Synthesis, Size Control, and Modification to Mechanical and Tribological Properties towards Nanocomposite Coatings. Nanomaterials. 2019; 9(9):1308. https://doi.org/10.3390/nano9091308
Chicago/Turabian StyleMa, Yanjun, Zhicheng Zhao, Yanbo Xian, Hongqi Wan, Yinping Ye, Lei Chen, Huidi Zhou, and Jianmin Chen. 2019. "Highly Dispersed Ag2S Nanoparticles: In Situ Synthesis, Size Control, and Modification to Mechanical and Tribological Properties towards Nanocomposite Coatings" Nanomaterials 9, no. 9: 1308. https://doi.org/10.3390/nano9091308