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Fracture Toughness of Ceramics Using the Vickers Indentation Crack Length Method

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Fracture toughness primarily measures resistance to:

a: Plastic deformation Explanation

Explanation

b: Crack growth Explanation

Explanation

c: Hardness Explanation

Explanation

d: Elastic strain Explanation

Explanation

Cracks in a Vickers indentation typically initiate at the:

a: Center Explanation

Explanation

b: Edges Explanation

Explanation

c: Corners Explanation

Explanation

d: Surface defects Explanation

Explanation

Ceramics generally fail by:

a: Necking Explanation

Explanation

b: Yielding Explanation

Explanation

c: Brittle fracture Explanation

Explanation

d: Creep Explanation

Explanation

Longer indentation cracks indicate:

a: Higher toughness Explanation

Explanation

b: Lower toughness Explanation

Explanation

c: Higher modulus Explanation

Explanation

d: Higher hardness Explanation

Explanation

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