Pearson Symbols  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.  
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Pearson symbol represents crystal system, type of Bravais lattice and number of atoms in an unit cell. For instance, a facecentered cubic (FCC) structure is a facecentered Bravais lattice having 4 atoms in the unit cell, and thus its Pearson symbol is cF4. In this notation, the crystal system is simplified by a = triclinic, m = monoclinic, o = orthorhombic, t = tetragonal, h = hexagonal and trigonal and c = cubic. The Bravais lattice is symbolized by P, S (for A, B and C), R, F and I. Table 2954a. Symbols used in Pearson notation.
Table 2954b. Other characteristics of Pearson notations.


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