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Metallic Solids

Metallic Solids

Metallic solids such as crystals of copper, aluminum, and iron are formed by metal atoms. The structure of metallic crystals is often described as a uniform distribution of atomic nuclei within a “sea” of delocalized electrons. The atoms within such a metallic solid are held together by a unique force known as metallic bonding that gives rise to many useful and varied bulk properties.
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability....

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Related Experiment Video

Updated: Jun 25, 2025

Preparation and Evaluation of Hybrid Composites of Chemical Fuel and Multi-walled Carbon Nanotubes in the Study of Thermopower Waves

Preparation and Evaluation of Hybrid Composites of Chemical Fuel and Multi-walled Carbon Nanotubes in the Study of Thermopower Waves

Published on: April 10, 2015

Preparation of Structure-Function Integrated Layered CNT/Mg Composites.

Shiping Deng¹, Linchi Zou¹, Zengxiang Liao¹

¹College of Materials Science and Engineering, Fujian University of Technology, 3 Xueyuan Road, University Town, Fuzhou 350118, China.

Materials (Basel, Switzerland)

|May 25, 2024

Summary

This summary is machine-generated.

This study enhances magnesium (Mg)-matrix composites by incorporating carbon nanotubes (CNTs) to improve strength and toughness. The resulting CNT/Mg laminates show superior mechanical and functional properties for advanced applications.

Keywords:

Mg-matrix composites damping properties electromagnetic shielding effectiveness mechanical properties

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Last Updated: Jun 25, 2025

Preparation and Evaluation of Hybrid Composites of Chemical Fuel and Multi-walled Carbon Nanotubes in the Study of Thermopower Waves

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Fabrication, Densification, and Replica Molding of 3D Carbon Nanotube Microstructures

Fabrication, Densification, and Replica Molding of 3D Carbon Nanotube Microstructures

Published on: July 2, 2012

Area of Science:

Materials Science
Composite Materials
Nanotechnology

Background:

Magnesium (Mg)-matrix composites offer excellent damping and electromagnetic shielding but suffer from a strength-toughness mismatch.
This limitation hinders their widespread application in various engineering fields.

Purpose of the Study:

To address the strength-toughness imbalance in Mg-matrix composites.
To maintain desirable functional properties while enhancing mechanical performance.
To develop high-performance, structure-function integrated Mg-based materials.

Main Methods:

Carbon nanotubes (CNTs) were uniformly dispersed on Mg foil using electrophoretic deposition (EPD).
Spark plasma sintering (SPS) was employed for consolidation.
Hot rolling deformation was applied to refine grain structure and enhance interlayer bonding.

Main Results:

CNT/Mg laminates exhibited a 6.4% increase in tensile strength and a 108.4% increase in elongation compared to pure Mg.
The laminate structure significantly improved toughness by increasing energy absorption during crack propagation.
Optimal properties were achieved at 80% total rolling deflection, yielding a tensile strength of 241.70 MPa and elongation of 6.90%.

Conclusions:

The developed CNT/Mg laminates overcome the strength-toughness mismatch, offering enhanced mechanical properties.
Microstructural modifications through EPD, SPS, and hot rolling are crucial for optimizing composite performance.
The study presents a viable approach for creating advanced Mg-based materials with integrated structural and functional characteristics.