What is

Bulk Metallic Glass?

Generally, the atoms in an alloy are arranged in an ordered and repeating pattern, known as a crystalline lattice. These crystals can be of various shapes and arrangements, all of which determine the resulting properties of the alloy. 

However, no such arrangement is perfect and there are defects in these arrangements (as shown in this figure). These defects and the failure to localize them is the source of mechanical failure or corrosion in alloys. It is often found that alloys in which crystals are larger, they tend to fail more readily than the alloys with small or no crystals. 

Crystalline Alloys

Bulk Metallic Glasses (BMGs) are a special class of alloys that do not follow any particular order in their atomic arrangement, therefore have no crystalline lattice. These alloys often contain alloying elements with atoms of large variations in atomic radii that inhibits the growth of crystals within the alloy melt. This particular property of BMGs leads to many interesting properties, such as:

  • High levels of hardness

  • Improved elasticity

  • Improved magnetic permeability

  • Improved corrosion resistance

  • Smooth surface finish

  • Improved bio-compatibility (due to similar structure as bones)

amongst many others. 

Bulk Metallic Glass

How does Phaseshift's AI help discover better BMGs?

Glass Forming Ability

Mechanical Properties

Generated Compositions

Our Machine Learning models can predict several properties and metrics associated with the glass forming nature of BMGs. Through our models we can predict the following things:

  • Since every alloy composition cannot form BMGs, our models help us predict which compositions are good glass formers.

  • Several mechanical properties associated with any alloy composition (such as Young's Modulus, Hardness, Density, etc.)

  • We can also generate highly optimized alloy compositions that would exhibit desirable properties.

Phaseshift Technologies Inc.