scholarly journals A Study of Preferred Orientation by Energy-Dispersive X-Ray Diffraction

1977 ◽  
Vol 2 (4) ◽  
pp. 243-251 ◽  
Author(s):  
E. Laine ◽  
J. Kivilä ◽  
I. Lähteenmäki
Keyword(s):  
Density Distribution ◽  
Diffraction Method ◽  
Polar Axis ◽  
Preferred Orientation ◽  
Energy Dispersive ◽  
X Ray Diffraction ◽  
Powder Specimen ◽  
X Ray ◽  
Aluminium Powder ◽  
Energy Dispersive Diffraction

The influence of preferred orientation on integrated x-ray intensities in powder specimen using energy-dispersive diffraction method is investigated. The theory used is based upon examination of the polar axis density distribution. The measurements were carried out using the Schulz technique added with defocusing correction. Experimental results are given for three aluminium powder specimens.

scholarly journals Correction of Integrated X-Ray Intensities for Preferred Orientation in Hexagonal Close-Packed Powders Using Edxrd

1980 ◽  
Vol 4 (2) ◽  
pp. 63-71 ◽  
Author(s):  
J. Kivilä ◽  
E. Laine ◽  
S. Parviainen
Keyword(s):  
Density Distribution ◽  
Polar Axis ◽  
Preferred Orientation ◽  
Energy Dispersive ◽  
X Ray Diffraction ◽  
X Ray ◽  
Hexagonal Close Packed ◽  
Integrated Intensities

It is shown that energy-dispersive x-ray diffraction (EDXRD) method can be used for correction of integrated intensities for preferred orientation in hexagonal close-packed powders. The theory is based upon examination of the polar axis density distribution and upon the use of hexagonal harmonics in its representation. The reflexion method by Schulz added with defocusing correction was used. Measurements were carried out on three zinc samples with different degrees of orientation, the largest correction being 54 percent.

Compositional and Texture Analysis of Tantalum Thin Films by Energy Dispersive X-Ray Analysis

1973 ◽  
Vol 27 (2) ◽  
pp. 99-102 ◽  
Author(s):  
H. S. deBen ◽  
Barret Broyde
Keyword(s):  
Thin Films ◽  
Texture Analysis ◽  
Diffraction Method ◽  
Preferred Orientation ◽  
Energy Dispersive ◽  
X Ray ◽  
Quantitative Measurements

Quantitative measurements of concentrations are given for the phases present in undoped tantalum thin films by the use of energy-dispersive x-ray detectors. This diffraction method can also yield the extent of preferred orientation.

Instrumentation for Synchrotron X-Ray Powder Diffractometry

1985 ◽  
Vol 29 ◽  
pp. 243-250 ◽  
Author(s):  
W. Parrish ◽  
M. Hart ◽  
C. G. Erickson ◽  
N. Masciocchi ◽  
T. C. Huang
Keyword(s):  
Synchrotron Radiation ◽  
Powder Diffraction ◽  
Storage Ring ◽  
Scintillation Counter ◽  
Diffraction Method ◽  
Energy Dispersive ◽  
Parallel Beam ◽  
X Ray ◽  
Radiation Laboratory ◽  
Energy Dispersive Diffraction

AbstractThe instrumentation developed for poly crystalline diffractometry using the storage ring at the Stanford Synchrotron Radiation Laboratory is described. A pair of automated vertical scan diffractometers was used for a Si (111) channel monochromator and the powder specimens. The parallel beam powder diffraction was defined by horizontal parallel slits which had several times higher intensity than a receiving slit at the same resolution. The patterns were obtained with 2:1 scanning with’ a selected monochromatic beam, and an energy dispersive diffraction method in which the monochromator is step-scanned, and the specimen and scintillation counter are fixed. Both methods use the same instrumentation.

scholarly journals Quantitative Determination of Preferred Orientation by Energy-Dispersive X-Ray Diffraction

1976 ◽  
Vol 2 (2) ◽  
pp. 95-111 ◽  
Author(s):  
L. Gerward ◽  
S. Lehn ◽  
G. Christiansen
Keyword(s):  
Quantitative Determination ◽  
Rolling Texture ◽  
Tension Test ◽  
Preferred Orientation ◽  
Energy Dispersive ◽  
X Ray Diffraction ◽  
X Ray ◽  
Fibre Texture

The use of energy-dispersive X-ray diffraction for quantitative determination of preferred orientations in polycrystalline specimens is analysed. The method is applied to determinations of rolling texture and fibre texture. The adaptability of the method to in situ studies is demonstrated by observations of texture changes simultaneous with the deformation of a specimen in a tension test.

scholarly journals On the calculation of the gauge volume size for energy-dispersive X-ray diffraction

2011 ◽  
Vol 18 (6) ◽  
pp. 938-941 ◽  
Author(s):  
Matthew R. Rowles
Keyword(s):  
Energy Dispersive ◽  
Diffraction Experiment ◽  
X Ray Diffraction ◽  
Active Volume ◽  
X Ray ◽  
Gauge Volume ◽  
Energy Dispersive Diffraction ◽  
Volume Size

Equations for the calculation of the dimensions of a gauge volume, also known as the active volume or diffraction lozenge, in an energy-dispersive diffraction experiment where the detector is collimated by two ideal slits have been developed. Equations are given for equatorially divergent and parallel incident X-ray beams, assuming negligible axial divergence.

Sign in / Sign up

Export Citation Format

Share Document