Composition and Types of Glass

Front

What type of material is glass classified as?

Back

Amorphous solid

Front

What is the primary component of glass?

Back

Silica (SiO₂)

Front

What role does silica play in glass composition?

Back

It acts as the main glass former.

Front

What is a former in glassmaking?

Back

A substance that forms the glass structure, such as silica.

Front

What is the purpose of adding lime (CaO) to glass?

Back

To prevent the glass from becoming soluble in water.

Front

What is the function of stabilizers in glass?

Back

To improve the durability and stability of the glass.

Front

What is an example of a stabilizer used in glass?

Back

Calcium carbonate (CaCO₃)

Front

Why is glass considered an amorphous solid?

Back

Because its atoms are arranged in a random fashion.

Front

What is the effect of adding alumina (Al₂O₃) to glass?

Back

It increases the glass's resistance to chemical attack.

Front

What is the significance of the glass transition temperature (Tg)?

Back

It is the temperature range where glass transitions from a hard and brittle state to a more plastic state.