Properties and Testing (Junior Cert Applied Technology): Flashcards
📚Flashcards
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11 cards from this deck
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Practise the cards
11 cards from this deck
Hardness definition
Hardness definition
Capacity to resist indentation or scratching
Three common indentation tests
Three common indentation tests
Brinell, Vickers, and Rockwell
What indentation tests measure
What indentation tests measure
Depth and diameter of indentation vs applied force
Hardness vs brittleness
Hardness vs brittleness
Hardness: surface resistance; Brittleness: fracture under stress
Glass hardness & brittleness properties
Glass hardness & brittleness properties
Hard (resists scratches) but brittle (breaks on impact)
What hardness measures
What hardness measures
Resistance to indentation and scratching on surfaces
What toughness measures
What toughness measures
Energy absorption & plastic deformation before breaking
Tough materials' response to impact
Tough materials' response to impact
Withstand blows without breaking
Hard materials' response to impact
Hard materials' response to impact
Resist scratches and penetration
Two toughness test types
Two toughness test types
Charpy and Izod tests
What toughness tests measure
What toughness tests measure
Energy absorption when material faces sudden force