Classification Of Materials Flashcards
What are 6 1/2 classifications
What does ferrous contain? Example? 2
Iron and carbon
Low carbon steel, cast iron
Give a disadvantage of ferrous materials?
Rusts
Advantages of non ferrous materials? 2
Examples? 2
Doesn’t rust, magnetic
Aluminium, copper
What is alloy?
Example? 2
Metals composed of two or more elements using their best quality’s.
Stainless steel, bronze.
What trees are hardwood and softwood?
Hardwood= deciduous tress( loose leaves in the winter)
Softwood= coniferous trees
Example of hardwood?
Disadvantages? 2
Oak, ash
Grows slower, expensive
Examples of soft wood? 2
Advantages? 2
Pine, cedar
Grows faster, inexpensive
Examples of manufactured boards? 3
Advantages? 1
Plywood, chipboard, MDF.
Are made in a lager size.
What are thermoplastics?
Advantages? 1
Examples?
Plastics that can be remoulded and reshaped.
Recyclable.
HIPS, PET, PP, PVC
Use of HIP
Use of PET
Use of PP
Use of PVC
Yogurt containers
Synthetic clothing, drinking bottles
Reusable plastic water bottles
Pipes, wires/ cables
Meaning of thermosetting plastics?
Examples?
Can’t be reheated therefore can’t be recycled.
Bakelite, epoxy resin
Use of Bakelite- WI
Use of Epoxy resin- A
What is one use of UF- p
wire insulation
Adhesion
Plug sockets
What is advantage of Aluminium? 4+ -Flam
Aluminium uses? 2
- lightweight
- Malleable
-Non ferrous so it will not rust - Recyclable
- Aesthetically pleasing
- food safe
-Car bodies
-Cans
Use of GRP? B
What can CFRP be used for? Bf
What is the disadvantage?
What process can be used to make this product? L
Boat hulls
Bike frame
Harder to recycle
Lay up manufacturing
How to test for tensile strength? Clamp.. end.. l
When testing for tensile strength, what other strength are we testing? ( underside of material) c
Clamp the material at one end and put load on another end
Compressive strength
What is toughness of material? How much 👋🏽
How to test for toughness? Force.. 🔨
What is a sign for tough materials and not tough materials? Break
-how much impact force the material can absorb
-Plant material and hits with the same force using a hammer.
-tough materials will not break or bend however brittle materials will break or bend.
How to test for hardness?
What is hardness? SI,A
Using a dot punch and hammer
- how well a material can resist abrasive and resist surface indentation.
How to test for malleability and ductility?
How do I tell if a material is not ductile? C o
How do I tell if a material lacks malleability?C i
-Clamp material down and bend material
-Cracks on the surface OUTSIDE when bending
-cracks on the surface INSIDE when bending 
When testing for corrosion, where should the material be placed? To test what?
Outside to test for wether effects?
When testing for electrical and thermal conductivity, what is it important to measure?probe, thermometer
The distance between the electrical probes on a material
The distance between Bunsen burner and thermometer.
Use of High Speed steel?
What does it contain as an alloy? Chr
How can it be improved? Coa
- Metal drill bit
-Chromium
-coated to improve performance