In situ synthesis and characterization of a hierarchically structured Al2O3/Al3Ti composite

Zhu, Heguo; Jiang, Yaling; Song, Jaeyoung; Li, Jianliang; Munroe, Paul; Xie, Zonghan

doi:10.1007/s10853-012-6817-0

Cited by 8 publications

(2 citation statements)

References 18 publications

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“…3), by analyzing the DSC results obtained at the heating rate of 10 K/min [10]. All the three reactions exhibit a similar trend; that is, they start slowly, and then acceleraterapidly before becoming slow again [11]. Three steps took 456, 672 and 650 s, respectively.…”

Section: Activation Energymentioning

confidence: 99%

Study on reaction mechanisms of iron matrix compositesreinforced with in situ Al₂O₃ particles reacted byAl-Fe₂O₃-Fe system

2018

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Iron matrix composites reinforced with Al2O3 particles were fabricated in situ through exothermic dispersive (XD) reaction from a powder mix of pure elements Fe, Al and Fe2O3. The fabrication and reaction mechanisms were investigated by using X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray energy dispersive spectroscopy (EDS) and differential scanning calorimetry (DSC) analysis. The reaction between Al and Fe2O3 was found to occur in three steps. Their activation energies are 203.8 kJ/mol, 1100.9 kJ/mol and 380 kJ/mol, respectively. DSC analysis shows that the reaction peak shifts to a higher temperature with an increase in the heating rate. When the heating rate is 10 K/min, the rates of the three reactions exhibit a similar trend, i.e., the reaction rate is very slow at the start, and then it increases rapidly, finally it becomes slow again. Their reaction times are 456, 672 and 650 s, respectively.

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Section: Activation Energymentioning

confidence: 99%

Study on reaction mechanisms of iron matrix compositesreinforced with in situ Al₂O₃ particles reacted byAl-Fe₂O₃-Fe system

2018

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“…Al 2 O 3 /Cu composites fabricated by the internal oxidation method can improve the mechanical properties of the Cu matrix while maintaining its excellent electrical conductivity, which is a high strength and high conductivity Cu matrix composite (Zhang et al , 2016; Guo et al , 2016; Zhou et al , 2018). Thanks to its excellent comprehensive performance, Al 2 O 3 /Cu composites are widely used in the field of friction (Kato et al , 2003; Zhu et al , 2012). In recent years, the field of current-carrying friction has developed rapidly with the rapid development of rail transportation, electronic and electrical appliances and aerospace industries.…”

Section: Introductionmentioning

confidence: 99%

Influence of service parameters on the current-carrying tribological properties of CF-Al₂O₃/Cu composites

Jia

Guo

et al. 2023

ILT

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Purpose The effect of different service parameters on the current-carrying tribological properties of CF-Al2O3/Cu composites was investigated, and the damage behavior of the composites under different service parameters was probed. The purpose of this study is to provide a theoretical basis for the application of CF-Al2O3/Cu composites. Design/methodology/approach The composites were fabricated by internal oxidation combined with powder metallurgy. The current-carrying tribological properties of CF-Al2O3/Cu composites were investigated on an electrical damage test system at different loads and currents. Findings As the load increases, the wear mechanism of the composite changes from abrasive wear to delamination wear. As the current increases, the oxidation wear and arc erosion of the composites gradually intensified. Under the service parameters of 0–25 A and 30–40 N, the composite has relatively stable current-carrying tribological properties. Originality/value This paper could provide a theoretical basis for the practical application of CF-Al2O3/Cu composites.

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Reaction Mechanisms and Tensile Properties of the Composites Fabricated by Al-B2O3 System

Sun¹,

Zhu²,

Zhang³

et al. 2019

J. Wuhan Univ. Technol.-Mat. Sci. Edit.

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In situ synthesis and characterization of a hierarchically structured Al2O3/Al3Ti composite

Cited by 8 publications

References 18 publications

Study on reaction mechanisms of iron matrix compositesreinforced with in situ Al₂O₃ particles reacted byAl-Fe₂O₃-Fe system

Study on reaction mechanisms of iron matrix compositesreinforced with in situ Al₂O₃ particles reacted byAl-Fe₂O₃-Fe system

Influence of service parameters on the current-carrying tribological properties of CF-Al₂O₃/Cu composites

Reaction Mechanisms and Tensile Properties of the Composites Fabricated by Al-B2O3 System

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In situ synthesis and characterization of a hierarchically structured Al2O3/Al3Ti composite

Cited by 8 publications

References 18 publications

Study on reaction mechanisms of iron matrix compositesreinforced with in situ Al2O3 particles reacted byAl-Fe2O3-Fe system

Study on reaction mechanisms of iron matrix compositesreinforced with in situ Al2O3 particles reacted byAl-Fe2O3-Fe system

Influence of service parameters on the current-carrying tribological properties of CF-Al2O3/Cu composites

Reaction Mechanisms and Tensile Properties of the Composites Fabricated by Al-B2O3 System

Contact Info

Product

Resources

About

Study on reaction mechanisms of iron matrix compositesreinforced with in situ Al₂O₃ particles reacted byAl-Fe₂O₃-Fe system

Study on reaction mechanisms of iron matrix compositesreinforced with in situ Al₂O₃ particles reacted byAl-Fe₂O₃-Fe system

Influence of service parameters on the current-carrying tribological properties of CF-Al₂O₃/Cu composites