Question

what is polycrystalline solid​

Answer 1

Answer:

Polycrystalline or multicrystalline materials, or polycrystals are solids that are composed of many crystallites of varying size and orientation. Crystallites are also referred to as grains. They are small or even microscopic crystals and form during the cooling of many materials..

Answer 2

Answer:

Polycrystalline or multicrystalline materials, or polycrystals aresolids that are composed of many crystallites of varying size and orientation. Crystallites are also referred to as grains. They are small or even microscopic crystals and form during the cooling of many materials.