amorphous metals advanced materials

Amorphous Metals – Advanced in Electric Motor Lamination Materials

In this comprehensive guide, we’ll delve into the properties, evolution, advantages, applications, manufacturing processes, challenges, and future trends of these unique amorphous metal materials. Let’s embark on a journey to understand how amorphous metals are transforming the landscape of electric motors.

What Is Amorphous Metals?

Amorphous metals, also known as metallic glasses, represent a unique class of materials characterized by their non-crystalline atomic structure. Unlike traditional metals with an ordered crystalline arrangement, amorphous metals lack a distinct long-range order, giving them exceptional properties. 

This non-crystalline structure is achieved through rapid solidification techniques during the manufacturing process. These metals offer very high permeability, a square hysteresis loop, and an oxide layer on the surface that provides electrical insulation for low eddy current losses.

Properties of Amorphous Alloys

amorphous metal alloys properties

Amorphous alloys boast a non-crystalline atomic structure, providing them with exceptional characteristics. Their high strength and hardness, combined with magnetic properties and electrical conductivity, make them ideal candidates for electric motor applications. Furthermore, their corrosion resistance ensures longevity in diverse operating environments.

Evolution of Electric Motor Lamination Materials

The evolution of electric motor lamination materials has witnessed a significant shift from traditional crystalline metals to innovative alternatives. Traditional electrical steel materials faced challenges such as core losses and inefficiencies, prompting the exploration of more advanced options.

The introduction of amorphous metals marked a pivotal moment in this evolution, offering a solution to the limitations of conventional materials. This transformative shift has paved the way for enhanced motor efficiency, reduced iron losses, and improved overall performance in electric motors.

Advantages of Amorphous Metals in Electric Motor Lamination

Amorphous metals exhibit a myriad of advantages in electric motor lamination, contributing to their widespread adoption. These include tremendous thermal conductivity, ensuring efficient heat dissipation during motor operation. Their superior hardness, especially at elevated temperatures, enhances durability and longevity.

With high general hardness, amorphous metals provide hard-wearing resistance, making them resilient to wear and tear.

Additionally, their high resistance against corrosion, scratch resistance, superior strength-to-weight ratio, low coefficient of friction, high yield strength, superior bond strength, and excellent ability to withstand repeated thermal cycling collectively make them a preferred choice for optimizing electric motor performance.

Applications in Electric Motors

amorphous metal alloy applications in electric motors

Amorphous alloy materials find diverse applications across various electric motors, revolutionizing performance in different domains. In traditional AC and DC motors, these materials enhance efficiency and reduce losses.

Moreover, amorphous metals play a crucial role in the burgeoning field of electric vehicles (EVs), where their application results in improved energy conversion and extended battery life.

The aerospace industry benefits from their lightweight yet robust characteristics, contributing to the development of efficient electric propulsion systems.

Whether in industrial machinery, household appliances, power tools, medical industry, or cutting-edge electric transportation, the applications of amorphous metals continue to expand, underscoring their versatility and impact.

Manufacturing Process of Amorphous Metal Laminations

The manufacturing process of amorphous metal laminations involves a fascinating technique known as rapid solidification. This process begins with the supercooling of molten metal at an exceptionally high rate, preventing the formation of a crystalline structure.

The result is the creation of ribbon-like structures with unique atomic arrangements. These ribbons exhibit the remarkable properties of amorphous metals, such as high strength and hardness.

The precision and speed of this manufacturing method are critical, underscoring the intricacies involved in producing amorphous metal laminations that contribute to the efficiency and performance of electric motors.

Challenges and Limitations

While amorphous alloys offer superior magnetic properties for electric motor rotor laminations, their manufacturing poses notable challenges. The extreme thinness (25 microns) and high hardness make processing into traditional motor structures difficult.

Stacking multiple layers risks potential shorts between laminations. Various methods, like cutting sheet strips and stacking laminations or winding coils, have been attempted.

A promising approach involves waterjet cutting techniques for constructing axial motor stators from wound conical forms of amorphous metal ribbons. This innovative method shows potential in addressing the intricacies of handling thin and hard amorphous materials, presenting a promising solution to manufacturing challenges.

Lamnow Amorphous Technology

lamnow amorphous technology

Lamnow boasts a state-of-the-art production line for amorphous motor laminations, specializing in the manufacturing of products such as amorphous-driven motors, motor control systems, high-speed amorphous motors/axles, and medical/military amorphous motors.

We are dedicated to delivering high-performance, energy efficiency amorphous motors characterized by compact size, higher efficiency, higher power density, high permeability, and higher frequency operation.

Our mission is to contribute to energy conservation and emission reduction, aligning with society’s needs for advanced, sustainable, and efficient technologies.


In conclusion, with unique properties like high strength, magnetic allure, and corrosion resistance, amorphous metals redefine efficiency and sustainability. Overcoming challenges through innovative manufacturing methods, these materials demonstrate unparalleled potential.

As industries embrace sustainable practices, amorphous metals emerge as catalysts for powerful, eco-friendly electric propulsion systems. The ongoing research and advancements in this field signify a promising future, solidifying amorphous metals’ role as pioneers in shaping the next generation of electric motors.


Where are amorphous alloys used?

Amorphous metals find applications in various industries, including electronics, aerospace, and automotive. They are used in manufacturing components like transformers, sensors, and high-performance materials due to their unique properties.

How are amorphous metals different from traditional electrical steel metals?

Amorphous materials differ from traditional electrical steel as they lack a crystalline structure. The absence of grain boundaries in amorphous metals enhances their magnetic properties, providing higher efficiency and reduced core losses in electrical applications. Additionally, amorphous metals exhibit superior soft magnetic characteristics compared to traditional electrical steels.

Do amorphous alloys have any disadvantages?

While amorphous alloys have many advantages, they can be more brittle than traditional metals. Care must be taken to avoid sudden impact or stress that could lead to fracture.

Can amorphous metals be molded into complex shapes?

Yes, one of the advantages of amorphous metals is their ability to be molded into complex shapes at relatively low temperatures, making them suitable for intricate and precision components.

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