Modification of properties (AQA GCSE Design and Technology): Flashcards
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Process changing material properties for specific applications
Process changing material properties for specific applications
Modification of properties
Critical temp for hardening carbon steel
Critical temp for hardening carbon steel
900°C
Rapid cooling by plunging metal into water
Rapid cooling by plunging metal into water
Quenching
Purpose of tempering after hardening
Purpose of tempering after hardening
Reduces brittleness while maintaining hardness
Temperature for case hardening steel
Temperature for case hardening steel
950°C (cherry red colour)
What case hardening creates
What case hardening creates
Hard surface with tough, impact-resistant core
Process creating decorative oxide finish on aluminium
Process creating decorative oxide finish on aluminium
Anodising
Aluminium's role in anodising process
Aluminium's role in anodising process
Acts as the anode (positive electrode)
Chemical used to develop photo-resist PCB
Chemical used to develop photo-resist PCB
Dilute sodium carbonate
Chemical used to etch copper on PCB
Chemical used to etch copper on PCB
Ferric chloride solution