Exceptions to Zachariasen's rules Flashcards
What are invert glasses?
~ form glasses with moderate cooling
~ just a lot of stuff in it
What is confusion factor?
~ the substantial re-ordering required to form a multi-cation compound or substantial diffusion required to form multiple phases
~ promotes glass formation
What are bulk metallic glasses?
~ confusion factor and atoms with significantly different size give low free volume = higher viscosity
Why do bulk metallic glasses have larger elastic deformations?
~ without periodicity, plastic deformation by dislocation motion is hampered
What are applications for bulk metallic glasses?
~ golf club heads
~ high frequency transformers (add iron for high electrical resistance, no GB impede ferromagnetic domain motion gives low loss cores)