Superior Plasticity of Silver-Based Composites with Reinforcing Pyrochlore
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.2. Material Synthesis
2.2.1. Synthesis of La2Sn2O7 and SnO2 Powders
2.2.2. Composite Fabrication
2.3. Material Characterization
2.4. Tensile Test
2.5. Computational Method
3. Results
3.1. Theoretical Evaluation of Interfacial Bonding Strength
3.2. Microstructures of the Ag-SnO2 and Ag-La2Sn2O7 Composites
3.3. Tensile Test
4. Discussion
4.1. Experimental Demonstration of Enhanced Interface Bonding Strength
4.2. Mechanism of Enhanced Interface Bonding Strength
4.3. Geometric Phase Analysis (GPA) around the Interfaces
4.4. Enhanced Interfacial Mobility and Plasticity
5. Conclusions
- (1)
- The as-prepared Ag-La2Sn2O7 composite showed enhanced plasticity, approximately 2.8 times that of the traditional and widely used Ag-SnO2 composite.
- (2)
- The good conformity between the experimental conductivity and the theoretical conductivity of the Ag-La2Sn2O7 composites indicated interfaces with less defects, which can scatter moving electrons, and good interfacial bonding strength, which hinders the formation of cracks.
- (3)
- The enhanced mobility of the Ag-La2Sn2O7 interface helped to release the stress concentration at the interface, inhibiting the formation and growth of microcracks and the debonding phenomenon.
Supplementary Materials
Author Contributions
Funding
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Materials | Tensile Strength (MPa) | Uniform Elongation (%) |
---|---|---|
Ag-SnO2 composite | 296 ± 6 | 5 ± 1 |
Ag-La2Sn2O7 composite | 243 ± 19 | 19 ± 3 |
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Zhang, L.; Cai, W.; Bao, N.; Geng, X.; Yang, H. Superior Plasticity of Silver-Based Composites with Reinforcing Pyrochlore. Metals 2023, 13, 325. https://doi.org/10.3390/met13020325
Zhang L, Cai W, Bao N, Geng X, Yang H. Superior Plasticity of Silver-Based Composites with Reinforcing Pyrochlore. Metals. 2023; 13(2):325. https://doi.org/10.3390/met13020325
Chicago/Turabian StyleZhang, Lingjie, Weiwei Cai, Ningzhong Bao, Xueyu Geng, and Hui Yang. 2023. "Superior Plasticity of Silver-Based Composites with Reinforcing Pyrochlore" Metals 13, no. 2: 325. https://doi.org/10.3390/met13020325