Explore the composition, key properties, and practical applications of different types of glass and ceramic materials in daily life.
Compare the components, properties and applications of the four types of glass alongside ceramic materials.
Silica is the main component of glass. Silica is a compound that contains silicon dioxide and exists naturally in sand. Pure silica melts and liquefies at around 1500°C to form glass.
Ceramic consists of a non-metal substance formed from a heat reaction at a very high temperature. Its main raw material is clay, and its main component is aluminium silicate.
Glass and ceramic are durable, non-metallic materials designed to serve specific functional roles. By adding different metal oxides and compounds such as boron oxide, calcium carbonate, or lead(II) oxide to silica, manufacturers produce various types of glass suited for high thermal resistance, shaping flexibility, or optical brilliance. In contrast, ceramics are baked clay products composed of aluminium silicate, providing exceptional resistance to extreme temperatures, mechanical wear, and chemical attack.
Glass has been used since 5000 B.C. It is primarily made from silica found naturally in sand, whereas ceramic is made from clay containing aluminium silicate.
Table 9.2 shows the four main types of glass and their characteristics.
The properties of each material determine how it is used.
Borosilicate glass is used for laboratory apparatus such as beakers and conical flasks because of its high resistance to heat and chemicals.
Soda-lime glass is used for light bulbs because of its resistance to heat and ease of shaping.
Lead crystal glass is used for glass prisms to study the dispersion of light because of its high refractive index.
Transparent glass is used for window panes to allow light to enter houses and buildings.
Tableware such as plates, bowls and cups is made of ceramic because of its resistance to heat and corrosion.
Dentures are made of ceramic due to its hardness and chemically inert nature.
Ceramic tiles are used for flooring because of their sparkling property that makes floors look clean and nice.
Flower pots are made of ceramic because they are hard and strong.
Answer in your mind, then press “Check Answer”.
What are the main chemical components in glass and ceramic?
Why are laboratory beakers and flasks made of borosilicate glass instead of soda-lime glass?
State two reasons why ceramic is used to make dentures.
All glass types withstand the same high temperatures.
Pure fused silica glass and borosilicate glass have high heat resistance, whereas soda-lime glass and lead crystal glass have relatively low melting points.
Clay and ceramic are the same material.
Clay is the raw material containing aluminium silicate, whereas ceramic is the finished product produced after subjecting clay to high-temperature heat reactions.
1 Which type of glass is composed of silica, boron oxide, sodium oxide, and aluminium oxide, making it suitable for laboratory apparatus?
2 What is the main component in clay used to manufacture ceramics?
3 Lead crystal glass is used to make optical prisms because it has a high index.
4 Pure silica melts and liquefies at approximately °C to form glass.
Drag each material or product to its correct property or purpose. On a phone, tap an answer first, then tap a matching box. Tap the Answer Choices area to return a selected item.
Write the correct material or product next to each property or purpose.
Answer choices: Borosilicate glass • Soda-lime glass • Lead crystal glass • Ceramic
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