caa a22 4500 397570007 CHVBK 20180308164838.0 cr unu---uuuuu 161202e199602 xx s 000 0 eng 10.1093/oxfordjournals.jmicro.a023407 doi (NATIONALLICENCE)oxford-10.1093/oxfordjournals.jmicro.a023407 Spence J. C. H. Department of Physics, Arizona State University, Tempe, AZ. 85287 U.S.A. Quantitative Electron Microdiffraction [Elektronische Daten] [J. C. H. Spence] The uses and significance of the ground state charge density distribution in crystals are reviewed. Methods for measuring this quantity by quantitative transmission electron microdiffraction are discussed, based on accurate measurement of structure factor amplitudes and phases. It is demonstrated that the effect of 5at% doping on convergent beam electron diffraction (CBED) intensities is easily measured, and the effect of doping by Mn at this level on gamma TiAl is studied and the implications for mechanical properties are discussed. The significance of the mean electrostatic potential is reviewed in terms of surface effects and bulk bonding. Phase determination using overlapping coherent CBED orders is reviewed, the deleterious effects of multiple scattering are emphasised, and the symmetry properties of the resulting patterns are analysed. © 1996 Oxford University Press Articles nationallicence electron diffraction nationallicence microdiffraction nationallicence charge density nationallicence Microscopy Oxford University Press 45/1(1996-02), 19-26 0022-0744 45:1<19 1996 45 jmicro https://doi.org/10.1093/oxfordjournals.jmicro.a023407 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1093/oxfordjournals.jmicro.a023407 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Spence J. C. H. Department of Physics, Arizona State University, Tempe, AZ. 85287 U.S.A NATIONALLICENCE 773 0- Microscopy Oxford University Press 45/1(1996-02), 19-26 0022-0744 45:1<19 1996 45 jmicro Metadata rights reserved CC BY-NC-4.0 http://creativecommons.org/licenses/by-nc/4.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-oxford