Related Experiment Video
Updated: Nov 13, 2025

Determining the Mechanical Strength of Ultra-Fine-Grained Metals
Published on: November 22, 2021
CONNECTION BETWEEN STRENGTH AND THERMAL CONDUCTIVITY OF METAL MATRIX COMPOSITES WITH UNIFORM DISTRIBUTION OF GRAPHITE
Aref Mazloum1, Valerio Oddone2, Stephanie Reich2
1Department of Mechanical and Aerospace Engineering, New Mexico State University Las Cruces, NM 88001, USA.
Abstract:
The paper focuses on the connection between thermal conductivity and overall strength of metal matrix composites on example of Al2024 and Mg-0.9Ca alloys reinforced with graphite flakes. We combine theoretical and experimental approaches to analyze the maximal stress concentration in such composites as a function of minimal distance between graphite flakes. The latter is linked to the volume fraction of the inhomogeneities, which governs overall thermal conductivity. Elimination of the volume fraction parameter leads to the explicit cross-property connection. This approach is possible if inhomogeneities in the material have the same shape and are uniformly distributed with no distinguishable clusters. The agreement between the theoretical predictions and experimental observations is very good.
Related Concept Videos
Network Covalent Solids
To break or to melt a covalent network solid, covalent bonds must be broken. Because covalent bonds are relatively strong, covalent network solids are typically...
Theory of Metallic Conduction
In this theory, Newton's second law of motion is used to determine the acceleration of an electron in the presence of an applied electric field. Then, its velocity is expressed via this acceleration.
An electron moves through the crystal, containing positive ions,...
Bending of Members Made of Several Materials
Hooke's Law determines stress in each material, stating that stress is proportional to strain but varies due to each material's...
Relation Between Tensile Strength and Compressive Strength of Concrete
Yield Criteria for Ductile Materials under Plane Stress
The Maximum Shearing Stress Criterion, also known as...
Mechanical Characteristics of Steel
The tension test is fundamental for determining tensile strength. In this test, a steel specimen is stretched using a gripping device until it breaks. The data collected during this test are used...

