Refractories

Refractories Refractories are materials that can withstand high temperatures without softening or deformation in shape. Refractories ...

Properties of refractories 1. Refractoriness It is the ability of a material to withstand very high temperature without softening o...

A good refractory should have high refractoriness. 1. Refractoriness under load ( RUL) (or) strength The temperature at which ...

General methods of manufacture of refractories The manufacture of refractories involve the following steps. 1. Grinding R...

Some important refractory bricks Alumina bricks (or) Fire clay bricks (Acidic refractories) ...

Abrasives Definition Abrasive are hard substances used for polishing shaping operations. They are characterized by high melti...

Natural abrasive (a) Non- Siliceous Abrasives It is a pure crystalline carbon. It is the hardest known substance. Its hardness ...