Scanning Electron Microscopy and X-Ray Microanalysis

438

24

Zr

31.97±0.03 31.38±0.03

50 μm ZrO 2

Ni

31.09±0.04 36.64±0.04

V

10.68±0.01 8.39±0.01

a BSE

Cr

4.96±0.01 3.10±0.01

Mn

4.87±0.01 4.01±0.01

Ti

7.28±0.01 8.64±0.01

Co

8.84±0.01 7.51±0.01

50 μm

b

. Fig. 24.28 Deep gray
level mapping of Ni-Zr-V
(with minor Ti, Cr, Mn, and
Co) hydrogen-storage alloy
(XSI conditions: 512 × 384
pixels, 8192 μs = 27 min; OCR
637 kHz = ~ 5200 counts/pixel
spec): quantitative composi-
tional maps with autoscaled
gray level presentation for
a major constituents and b
minor constituents. Com-
positional values noted are
derived from SUM spectra
formed from pixel masks of
the phases marked by arrows

Chapter 24 · Compositional Mapping