0

Guest

Courses New

Calculate the octahedral vacancy for BCC unit cell

Calculate the octahedral vacancy for BCC unit cell

Grade:12

1 Answers

Suraj Prasad IIT Patna
askIITians Faculty 286 Points
8 years ago
An octahedral position for an (interstitial) atom is the space in the interstices between 6 regular atoms that form an octahedra.
Four regular atoms are positioned in a plane, the other two are in a symmetrical position just above or below. All spheres can be considered to be hard and touching each other.
The six spheres define a regular octahedra, in its interior there is a defined space for an interstitial atom, bordered by six spheres.
Octahedral sites exists in fcc and bcc crystals. The other prominent geometric environment for interstitials is the tetrahedral site.
octahedral sites in the bcc lattice. We have 12/4 + 6/2 = 6 positions per unit cell

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

Other Related Questions on Discuss with Askiitians Tutors

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More