Mechanical Engineering - Engineering Materials - Discussion
Discussion Forum : Engineering Materials - Section 1 (Q.No. 14)
14.
Closed packed hexagonal space lattice is found in
Discussion:
10 comments Page 1 of 1.
Shivaraj ankada said:
1 decade ago
In hcp(hexagonal close packing)volume occupied is 72%, no.of atoms per unit cell is 4. Same as FCC.
Abhi said:
10 years ago
@Shivaraj Ankada.
Hexagonal close packing volume occupied is 74%, and no. of atoms per unit cell is 6 which is not same as for FCC.
Hexagonal close packing volume occupied is 74%, and no. of atoms per unit cell is 6 which is not same as for FCC.
Jay said:
8 years ago
Could anyone please explain it properly. I can't understand.
Sunny said:
8 years ago
The answer antimony, bismuth are rhombohedral.
Rafi mm said:
8 years ago
(B) FCC.
(C) BCC.
(C) BCC.
Kalandi Tarai said:
8 years ago
Please explain the details.
(1)
Sundar said:
7 years ago
Please explain it clearly.
Shaik said:
6 years ago
Please explain it properly.
Paatel said:
6 years ago
@All.
Zinc, magnesium, cobalt, cadmium, antimony and bismuth material's common relation is all are the low melting process.
Zinc, magnesium, cobalt, cadmium, antimony and bismuth material's common relation is all are the low melting process.
(2)
NBharti said:
2 years ago
Zinc, magnesium, cobalt, cadmium, Mercury, Zirconium, antimony and bismuth = HCP (APF=74%).
Gamma-iron, aluminium, Calcium, copper, lead, Gold, Platinum, silver and nickel = FCC (APF=68%).
Alpha-iron, delta-iron, tungsten, Sodium, chromium, Manganese and molybdenum = BCC (APF=52%).
Gamma-iron, aluminium, Calcium, copper, lead, Gold, Platinum, silver and nickel = FCC (APF=68%).
Alpha-iron, delta-iron, tungsten, Sodium, chromium, Manganese and molybdenum = BCC (APF=52%).
(5)
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