Question

Describe the difference in the atomic behaviors (specifically viscosity) of crystalline and amorphous ceramics as they heat up. In your own words, compare and contrast the ideas of tempered martensite (metals) -vs- tempered glass (amorphous ceramic).

Answer 1

Ang State in Solid viscosity biscosity at melting point at liquid state ту rom Figure ho behaviour of Amorphous and crystalline ceramic under applied heat is quite different. In solid State, a crystalline Ceramic is rigid with a high viscosity AS the ceramics is heated to past its melting point the viscosity drops abruptly to that of a flowing liquid. Temperd Calass It is a type of safety glass Processed by controlled thermal or chemical treatment to increas its strength

compared puts the with outer normal surface glass. Tempering into compression, and the Inerior into tension.. * Tempered Martensite harder and stronger is much more. Tempered martensite is in as much as there ferrite – cementite phas for smaller particles boundary area there is greater reinforcement of the serrite phase, and to dislocation more 2 phase boundry barriers Motion. е омро is used to improve toughness in steel that has beed through hardened by heating it to form austentite and then quenching it to form martensite.