The Beta to Omega Phase Transition - A Unique Example

Explore a comprehensive lecture on the unique beta (bcc) to omega (hexagonal) phase transition in this Foundation Day presentation by Srikumar Banerjee from the Homi Bhabha National Institute, Mumbai. Delve into the formation of the omega phase in Group 4 metals and various alloys, examining its occurrence as both an equilibrium and metastable phase. Investigate the transformation mechanism, including the periodic displacement of {222} planes in the parent bcc structure. Discover pre-transition effects, phonon softening, and recent high-resolution electron microscopy findings that provide deeper insights into this first-order transition. Cover topics such as order parameters, symmetry rules, continuous transitions, crystallography, diffraction patterns, phase diagrams, and chemical changes associated with omega formation.

Introduction
Dr Srikumar Banerjee
The body of the quotation
Making sense of what you see
Collaboration
Order Parameter
Symmetry Rules
Second Order Transition
Continuous Transition
Omega
Crystallography
AntiOmega Structure
Premonition
Thermal Omega Transmission
Diffraction Pattern
Wave Packet
Phase Diagram
Crowdin Formation
Omega Formation
Chemical Change
Partial Collapse