Question

(a) How will you identify materials based on their hardness?

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Answer 1

Answer:

Hardness of metals is usually done using an indenter, with a "hardnessnumber" being related to the depth of the indentation. Ceramics and other very hard materials are often measured using a scratch method. Plastics and other soft materials'hardness can be measured using rebound and other methods.

Answer 2

Answer:

Here is your answer

Explanation:

Hardness of metals is usually done using an indented , with a "hardnessnumber" being related to the depth of the indentation. ceramics and other very hard materials are often measured using a scratch method. p, as tics and other soft materials 'hardness can be measured using rebound and other method .

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