Introduction
The concept of composite material has been around since ancient times. Initially, an example of composite material was seen in the form of mud bricks which were set in the sun to dry; this interaction of the mud and sun was a form of composite material. Since those days, the uses of composite material have skyrocketed. What are composite materials and what have caused this exponential growth in its use and development?
Definition
A composite material is defined as a material which is manufactured from two or more constituent elements with significantly different physical characteristics and in which the components retain their individual identities, even though they are inseparable from the composite system. The combination of materials used creates a material with superior characteristics than either of the component materials. Due to the distinct properties seen in composite materials, almost any industry which utilizes material can apply this concept to their needs.
Types of Composite Materials
The types of composite materials can be broken down into three categories: ceramic-matrix composites (CMCs), metal-matrix composites (MMCs), and organic-matrix composites (OMCs).
CMCs combine ceramic materials with a matrix of other materials, such as glass or metal, to create a stronger material. CMCs are resistant to high temperatures and good thermal conductors, making them ideal for use in extreme conditions. They are primarily used in the aerospace and automotive industries.
MMCs combine a metal component with a filler material to create a more durable material that is heat resistant, lightweight and strong. The filler material may include ceramic or polymer materials. MMCs are used in a wide range of industries, from automotive and aerospace to medical and industrial.
OMCs are a combination of an organic component, such as an adhesive, and a filler material, such as glass, Kevlar or carbon fiber. OMCs are lightweight and have superior acoustic dampening and corrosion resistance, making them popular in the aerospace and automotive industries.
Applications of Composite Materials
Composite materials are used in a variety of industries and applications, from the aerospace and automotive industries to the medical and industrial fields. Here are just a few of the many uses for composites:
• Aerospace: composites are frequently used in commercial and military aircraft wings, fuselages and tail surfaces, as well as in aircraft engines, as they provide superior strength and durability compared to traditional materials such as steel and aluminum.
• Automotive: composites are increasingly being used in vehicle bodies and chassis, as they are lightweight and provide superior stiffness, making them more fuel-efficient.
• Medical: composites are used in prosthetic implants and orthopedic casts, as they provide superior strength and are lightweight.
• Industrial: composites are used in a wide range of applications, such as bearings and seals that require superior wear or vibration resistance.
Benefits of Composite Materials
Composite materials have many key benefits, such as:
• Lightweight: composites are typically lighter than traditional materials, making them easier to transport and handle.
• Stronger: composites are often up to five times stronger than traditional materials, such as steel and aluminum, making them well-suited for use in a number of applications, from aerospace to industrial.
• Durable: composites are extremely durable, making them reliable for use in a range of harsh conditions.
• Compatible: composite materials can be used with a variety of adhesives, enabling them to be used in a range of applications.
• Cost-effective: composite materials are generally more affordable than traditional materials, making them an attractive option for many industries.
Conclusion
Composite materials have been used in a wide range of industries, due to their superior strength and durability. They are lightweight, strong, and provide superior resistance to environmental conditions, which makes them ideal for use in a variety of applications, from aerospace to industrial. As the demand for better materials increases, the development and use of composite materials will continue to grow.