J Mater Sci Technol ›› 1999, Vol. 15 ›› Issue (05): 410-414.

• Research Articles • Previous Articles     Next Articles

On the Methods of Beam Direction and Misorientation Angle/Axis Determination by Systematic Tilt

Yonghua RONG, Gang HE, Shipu CHEN, Genxiang HU, Ming GAO, Robert P.WEI   

  1. School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200030, China...
  • Received:1998-09-14 Revised:1998-11-16 Online:1999-09-28 Published:2009-10-10
  • Contact: Yonghua RONG

Abstract: The methods for determining electron beam direction and misorientation angle/axis of grain boundaries are described in this paper. The present methods are based on a series of diffraction spot patterns obtained by systematic tilt of the crystal, combined with simple mathematical calculations. Instead of the use of Kikuchi patterns, the limitations resulting from the visibility or sharpness of Kikuchi lines and the number of Kikuchi pole(s) existed are avoided and a sufficient accuracy of determination has been achieved.

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