Mechanical Engineering - Engineering Materials - Discussion

Discussion Forum : Engineering Materials - Section 1 (Q.No. 13)
13.
A material is said to be allotropic, if it has
fixed structure at all temperatures
atoms distributed in random pattern
different crystal structures at different temperatures
any one of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
5 comments Page 1 of 1.

Amank said:   6 years ago
Iron exists as an FCC structured material between (910-1395) degree Celsius and rest at BCC form, Hence iron can be termed as an allotrope.

Doke Bibhishan said:   1 decade ago
An allotropic form of carbon arranged in a manner that forms a hollow sphere, cylinder, or the like. These may range from as few as 20 carbon atoms, to several hundred, always in specific multiples of atoms. The most common and stable found to date is buckminsterfullerene.

Sankar said:   1 decade ago
The material which exhibits same strength in all directions.

Ashu said:   1 decade ago
The material which having more than one type of crystal structure called allotropic material. Example: Iron.

Vish said:   1 decade ago
Diamond and graphite are the allotropic forms of carbon.

Post your comments here:

Your comments will be displayed after verification.