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Title: ENGINEERING PHYSICS
Description: Properties of Metallic Glasses: Metallic glasses, also known as amorphous metals, are metallic alloys that have a disordered atomic structure rather than the regular crystalline lattice found in traditional metals. This unique structure gives metallic glasses a range of distinctive properties that differ from those of crystalline metals. Here’s an overview of the various properties of metallic glasses:
Description: Properties of Metallic Glasses: Metallic glasses, also known as amorphous metals, are metallic alloys that have a disordered atomic structure rather than the regular crystalline lattice found in traditional metals. This unique structure gives metallic glasses a range of distinctive properties that differ from those of crystalline metals. Here’s an overview of the various properties of metallic glasses:
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Subject
:
Department :
Question
ENGINEERING PHYSICS
Civil Engineering
: Discuss the various properties of metallic glasses?
ANS:
Properties of Metallic Glasses:
Metallic glasses, also known as
amorphous metals, are metallic alloys that have a disordered atomic
structure rather than the regular crystalline lattice found in traditional
metals
...
Here’s an overview of the various properties of metallic glasses:
1
...
This lack of long-range order leads to different physical
properties compared to crystalline materials
...
Mechanical Properties
High Strength: Metallic glasses typically exhibit high tensile strength
and hardness
...
Elasticity: They generally have high elastic limits and can deform
elastically under stress without permanent deformation, contributing
to their high strength-to-weight ratio
...
They often lack the ductility of
crystalline metals, making them prone to sudden failure under stress
...
Thermal Properties
Glass Transition Temperature (Tg): Metallic glasses have a distinct
glass transition temperature, below which they behave as a brittle
glass and above which they exhibit more ductility
...
Low Thermal Conductivity: They often have lower thermal
conductivity compared to crystalline metals
...
High Thermal Stability: Metallic glasses can maintain their amorphous
structure at elevated temperatures up to a certain point, beyond
which they may crystallize
...
Magnetic Properties
Soft Magnetic Properties: Many metallic glasses exhibit soft magnetic
properties, making them suitable for applications like transformers
and magnetic cores
...
Magnetic Anisotropy: Some metallic glasses show magnetic
anisotropy due to their amorphous structure, affecting their magnetic
behavior in different directions
...
Corrosion Resistance
Excellent Corrosion Resistance: Metallic glasses generally have good
resistance to corrosion and oxidation
...
6
...
The disordered atomic
structure creates more resistance to electron flow
...
7
...
This requires precise control over cooling rates and conditions
...
Their
processing requires special techniques due to their tendency to
crystallize if not handled correctly
...
Wear Resistance
High Wear Resistance: The hardness and smoothness of metallic
glasses contribute to their high wear resistance
...
9
...
This makes them useful in applications where
weight reduction is crucial
Title: ENGINEERING PHYSICS
Description: Properties of Metallic Glasses: Metallic glasses, also known as amorphous metals, are metallic alloys that have a disordered atomic structure rather than the regular crystalline lattice found in traditional metals. This unique structure gives metallic glasses a range of distinctive properties that differ from those of crystalline metals. Here’s an overview of the various properties of metallic glasses:
Description: Properties of Metallic Glasses: Metallic glasses, also known as amorphous metals, are metallic alloys that have a disordered atomic structure rather than the regular crystalline lattice found in traditional metals. This unique structure gives metallic glasses a range of distinctive properties that differ from those of crystalline metals. Here’s an overview of the various properties of metallic glasses: