Metal alloy identifier

Patent · Thu Jan 01 00:00:00 EST 1987

OSTI ID:866359

Riley, William D ^[1]

---

1. Avondale, MD

To identify the composition of a metal alloy, sparks generated from the alloy are optically observed and spectrographically analyzed. The spectrographic data, in the form of a full-spectrum plot of intensity versus wavelength, provide the "signature" of the metal alloy. This signature can be compared with similar plots for alloys of known composition to establish the unknown composition by a positive match with a known alloy. An alternative method is to form intensity ratios for pairs of predetermined wavelengths within the observed spectrum and to then compare the values of such ratios with similar values for known alloy compositions, thereby to positively identify the unknown alloy composition.

• Research Organization: National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
• Assignee: United States of America as represented by Secretary of (Washington, DC)
• Patent Number(s): US 4692875
• OSTI ID: 866359
• Country of Publication: United States
• Language: English

Related Subjects

metal
alloy
identifier
identify
composition
sparks
generated
optically
observed
spectrographically
analyzed
spectrographic
data
form
full-spectrum
plot
intensity
versus
wavelength
provide
signature
compared
similar
plots
alloys
establish
positive
match
alternative
method
ratios
pairs
predetermined
wavelengths
spectrum
compare
values
compositions
positively
alloy composition
predetermined wavelength
metal alloy
versus wavelength
alternative method
alloy compositions
intensity ratio
/702/356/