High alumina refractories

High Alumina Refractories :

Radius ratio rules -S sir

For the stability of an ionic compound, each cation should be surrounded by maximum number of anions and vice versa. The number of oppositely charged ions surrounding each ion is called its co-ordination number.

Classification of Fire Clay & PCE

Fire Clay may be divided into two classes—

1. Flinter hard clays

Properties of Fire Clay

It is resistant to high temperatures, has a fusion point higher than 1,600°C, and therefore it is suitable for lining furnaces, as fire brick, and manufacture of utensils used in the metalworking industries, such as crucibles, saggars, retorts, and glassware. Because of its stability during firing in the kiln, it can be used to make complex items of pottery such as pipes and sanitary ware.

 

Fire clay & fire clay bricks

*Fire clay is a specific kind of clay used in the manufacture of ceramics, especially fire brick.

Courses [MSE]

B.Sc (Eng) Part 1

MSE-101F=Introduction to Materials