Electron microscopy
Body-centered (I) Lattices/I-Centering
- Practical Electron Microscopy and Database -
- An Online Book -
Microanalysis | EM Book                                                                                   https://www.globalsino.com/EM/        

This book (Practical Electron Microscopy and Database) is a reference for TEM and SEM students, operators, engineers, technicians, managers, and researchers.


There are totally three lattice types which are:
         i) Primitive (P) lattices. In this case, there is only one lattice point per unit cell.
         ii) Body-centered (I) lattices. In this case, there is a lattice point at the corners and one in the center of the cell.
         iii) A-, B-, C- or F-centered lattices. In this case, there is a lattice point at the corners and others at one (A, B, C) or all three (F) of the faces.

Table 2965. Other characteristics of I-centering.

Table of reflections of different lattice centerings page2962

For the enlarged tetragonal unit cells, i.e. C or F centred unit cells, the symbols selected to describe the symmetry with respect to the x and y axes, and with respect to the face-diagonal directions is simply the same as that selected for the equivalent P and I centred cells, but with the order of the symbols reversed e.g. the name C4/mmb is used for the enlarged unit cell of space group P4/mbm.



The book author (Yougui Liao) welcomes your comments, suggestions, and corrections, please click here for submission. If you let book author know once you have cited this book, the brief information of your publication will appear on the “Times Cited” page.