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energy-dispersive spectrometers

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Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006770
EISBN: 978-1-62708-295-2
... on the operating principles and applications of detectors for x-ray spectroscopy, namely energy-dispersive spectrometers, wavelength-dispersive spectrometers, and handheld x-ray fluorescence systems. The processes involved in x-ray analysis in the SEM and handheld x-ray fluorescence analysis are then covered...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.chem.c9001687
EISBN: 978-1-62708-220-4
... by using standard metallographic techniques. All the samples were examined and analyzed using a JEOL 8600MX electron microprobe equipped with a four-crystal wave dispersive spectrometer (WDS), an energy dispersive spectrometer (EDS) and a back-scattering detector (BSD). The latter was normally used...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001798
EISBN: 978-1-62708-241-9
... infrared spectrometer (FTIR), x-ray energy dispersive spectrum (EDS), and differential scanning calorimetry coupled with thermogravimetric analyzer (DSC-TGA). In order to build the fault tree of the failure of the encapsulant, the curing process and storage procedure should be analyzed theoretically...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001034
EISBN: 978-1-62708-214-3
... Procedure and Results Surface examination Scanning Electron Aheroscopy/Fractography Portions of the pitted surface were examined further with a scarming electron microscope (SEM) equipped with an energy-dispersive spectrometer (EDS). This instrument permits viewing of the specimens at very high...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.homegoods.c9001622
EISBN: 978-1-62708-222-8
...) failure A stamped coin exhibited visible discolored areas, seen as a tan haze on the surface ( Fig. 1 ). In this case, the discoloration was considered merely cosmetic. The nonstained and stained regions were studied using a scanning electron microscope equipped with an energy-dispersive X-ray...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003529
EISBN: 978-1-62708-180-1
... of detector was developed that, with no moving parts, could simultaneously count and determine the energy of the x-rays ( Fig. 6 ). These detectors are the ones used for EDS modules on SEM devices. Fig. 5 Schematic diagram of the components of a wavelength-dispersive x-ray spectrometer Fig. 6...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001754
EISBN: 978-1-62708-241-9
... and smearing. Surface scans via an energy dispersive spectrometer (EDS) provided the most important evidence, revealing traces of Titanium-based transferred material immediately adjacent to the initiation of a spall. Titanium is an element completely foreign to the bearing and gears found in the assembly ( Fig...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003522
EISBN: 978-1-62708-180-1
... that can simultaneously count and determine the energy of emitted x-rays. Such an energy-dispersive detector contrasts with the wavelength-dispersive spectrometers used on the original electron probe microanalyzer developed by Castaing in 1948. The x-rays are generated when a sample of the area of interest...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001269
EISBN: 978-1-62708-215-0
... examination. Surprisingly, the clamping force of the vise and stress from sectioning was sufficient to cause additional multiple fractures. Scanning Electron Microscopy/EDS A Leica S-200 scanning electron microscope (SEM) equipped with a light element detecting energy dispersive x-ray spectrometer (EDS...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006757
EISBN: 978-1-62708-295-2
... Analysis Energy-dispersive x-ray analysis is normally conducted using an SEM fitted with an x-ray detector that can simultaneously count and determine the energy of emitted x-rays. Such an energy-dispersive detector contrasts with the wavelength-dispersive spectrometers used on the original electron...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.conag.c9001633
EISBN: 978-1-62708-221-1
...-dispersive spectroscopy (EDS) system attached to the SEM provided elemental analysis for elements sodium and higher on the periodic table. Carbon analysis was performed using an element analyzer connected to an isotope ratio mass spectrometer. Ultrahigh-purity helium was used as a carrier gas for the carbon...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001088
EISBN: 978-1-62708-214-3
... in the origin area. 1.3×. Fig. 3 Fracture surface of specimen A. Arrow indicates fracture origin on the OD surface and in the toe of a weld nugget (see Fig. 2 ). 1.94×. Testing Procedure and Results Surface Examination Energy-Dispersive X-ray Spectrometer Analysis The undamaged...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001490
EISBN: 978-1-62708-232-7
... Around the perimeter of the hole the steel exhibited a very unusual set of microstructural bands, Figures 5 , 6 , and 7 . Based on the appearance and on energy-dispersive x-ray (EDX) microprobe spectra, Figures 8 and 7 , and on the wavelength spectrometer analysis of oxygen, Figure 9...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003534
EISBN: 978-1-62708-180-1
...: EDS, energy-dispersive spectroscopy; WDS, wavelength-dispersive spectroscopy; AES, Auger electron spectroscopy; XPS, x-ray photoelectron spectroscopy; TOF-SIMS, time-of-flight secondary ion mass spectrometry; FTIR, Fourier transform infrared (spectroscopy) Understanding the various analytical...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001329
EISBN: 978-1-62708-215-0
... on the order of a few cubic micrometers in bulk samples, and considerably less in thinner sections. Analysis of x-rays emitted from a sample is accomplished using crystal spectrometers, which use energy-dispersive techniques that permit analysis by discriminating among X-ray energies. The feature...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001845
EISBN: 978-1-62708-241-9
... (5 g FeCl 3 + 50 ml HCl + 500 ml deionized water) was applied to reveal the microstructure. Cleaning was performed using ethanol followed by hot air stream drying. Fractographic observation was conducted using a scanning electron microscope equipped with an energy-dispersive X-ray spectrometer...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006771
EISBN: 978-1-62708-295-2
... a vacancy. A second electron from a higher shell fills this inner-shell vacancy in an energy-gain process. This energy can then cause the ejection of a third electron, referred to as an Auger electron. The energy of the escaping Auger electron is analyzed by an electron spectrometer. Because each element...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001616
EISBN: 978-1-62708-229-7
... of the tube reduced by spalling of the scale. The SEM micrographs showing the corrosion products on the OD of the Stage 3 tube along with cracks emanating from there are presented in Fig. 9 . These corrosion products were analyzed with the help of an energy-dispersive spectrometer (EDS) attached to the SEM...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.med.c9001690
EISBN: 978-1-62708-226-6
... and microscopic characterization of the material (using a Jena stereomicroscope and Neophot microscope from Carl Zeiss, Inc.), fractographic investigation of the fracture surfaces and adjacent areas (with a JEOL 5200 SEM equipped with energy dispersive spectrometer (EDS) using Si-Li detector, and chemical...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006769
EISBN: 978-1-62708-295-2
.... These energy-dispersive spectrometers (EDS) are fairly inexpensive, easy to operate, and robust. A careful analysis using elemental standards can produce results of 5% accuracy with a precision of 0.1 wt%. Additional details on x-ray analysis can be found in the article “X-Ray Spectroscopy in Failure Analysis...