Mechanical Engineering - Engineering Materials - Discussion

Discussion Forum : Engineering Materials - Section 2 (Q.No. 27)
27.
Which of the following is an amorphous material?
Mica
Silver
Lead
Glass
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
4 comments Page 1 of 1.

K.Harish (IIIT) said:   8 years ago
Amorphous solids which don't have regular periodic arrangement. It may have short range but don't have any long rang order.

Silver - fcc.
Lead - fcc.
Mica - monoclinic.

But glass doesn't have any crystal structure.

Aatish said:   9 years ago
Glass is amorphous (SiO2) and Quartz is crystalline.
(1)

Mohana raju d c said:   10 years ago
Amorphous solids on the other hand, do not have a regular and periodic arrangement of atoms. All the bonds are not equally strong. These solids do not have a precise melting point.

Examples of amorphous solids are rubbers, glass, plastic, cement and paraffin.
(1)

Mohana raju d c said:   10 years ago
An amorphous solid is a solid in which there is no long-range order of the positions of the atoms.
(1)

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