Unit R014 - Engineering Manufacture - Topic Area 2 - Retrieval D

Engineering Ceramics

An engineering ceramic is..........

• A metal that does not contain iron.

• A metal that does contain iron.

• Pottery and tableware.

• A material typically made of non metallic and/or inorganic substances. Formed using heat and/or pressure.

Engineering Ceramics

Generally speaking the properties of ceramics are........

• Brittle

• Ductile

• Hard

• Corrosion Resistant

• Elastic

Engineering Ceramics

Label the vehicle to show applications of ceramics in automotive engineering.

a

b

c

Windscreen

Disc Brakes

Spark Plugs

Tyres

Engineering Ceramics

Which products here are typically ceramic?

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Answer explanation

Power line insulators are often porcelain based including clay and alumina. They have excellent insulating properties preventing the high voltage being able to travel down the support structure to the ground below.

Dental implants are often made of Zirconia now, a high performance ceramic. Zirconia is an inert material meaning it will not chemically react with your body when used as an implant of the food and drink you put in your mouth.

Engineering Ceramics

Silicon Carbide is a common engineering ceramic. It is made by melting and joining pure silicon and carbon together. Which products utilise Silicon Carbide in their design?

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Engineering Ceramics

Tungsten carbide is composed or tungsten and ​ (a)   . It has high levels of ​ (b)   and is an excellent conductor of electricity and ​ (c)   . Small amounts of ​ (d)   can be added to remove the brittleness of the material.

• carbon
• hardness
• heat
• titanium
• carbon fibre
• cold
• stainless steel

Engineering Ceramics

Tungsten carbide is often used in which of the products below?

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Engineering Ceramics

Silicate glass refers to any material that is vitreous (shiny and glass like) in appearance where SIlicon Dioxide is the most abundant oxide. Which items below are most likely to be made from Silicate glass?

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Answer explanation

Silicate Glass has excellent physical and chemical properties.

It has fantastic abrasion resistance and hardness alongside excellent high temperature capabilities and the ability to withstand coming into contact with many toxic and dangerous chemicals.