The Precession Technique in Electron Diffraction and Its Application to Structure Determination of Nano-Size Precipitates in Alloys
2004 ◽
Vol 10
(1)
◽
pp. 16-20
◽
Keyword(s):
System A
◽
Crystal structure of nano-scale precipitates in age-hardening aluminum alloys is a challenge to crystallography. The utility of selected area electron diffraction intensities from embedded precipitates is limited by double scattering via matrix reflections. This effect can be signally reduced by the precession technique, which we have used to collect extensive intensity data from the semicoherent, metastable η′-precipitate in the Al-Zn-Mg alloy system. A structure model in the space group P-62c is proposed from high-resolution microscopy and electron diffraction intensities. The advantages of using the precession technique for quantitative electron diffraction is discussed.
2003 ◽
Vol 218
(4)
◽
2016 ◽
Vol 22
(S3)
◽
pp. 1786-1787
◽
Keyword(s):
2004 ◽
Vol 60
(a1)
◽
pp. s42-s42
1988 ◽
Vol 46
◽
pp. 876-877
1982 ◽
Vol 40
◽
pp. 688-689
1983 ◽
Vol 164
(3-4)
◽
1974 ◽
Vol 32
◽
pp. 532-533