Question

3)

In the sintering process of nanoparticles of 10 nm or less, local curvature greatly influences the sintering temperature. Describe why

In short sentence

Answer 1

Let's clear it in this way .....what we know about sintering that it occour at low temp now curvature because we know at nano scale it have large surface to volume ratio but due to sintering nano particle start to take a curvature shape so surface area decrease and particle start to bound then due to that surface energy decrease and that favour sintering at lower temperature......if size is more less as given then driving force for sintering is high and it will done at more lower temperature