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transmitted-light microscopy

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030115
EISBN: 978-1-62708-349-2
...Abstract Abstract Transmitted-light methods reveal more details of the morphology of fiber-reinforced polymeric composites than are observable using any other available microscopy techniques. This chapter describes the various aspects relating to the selection and preparation of ultrathin...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030211
EISBN: 978-1-62708-349-2
..., information on the origin and microstructure of the crystallinity in the composite. To determine the morphology of thermoplastic-matrix composites, transmitted polarized-light microscopy can be used very effectively. The preparation of thermoplastic-matrix composites for optical microscopic analysis...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030089
EISBN: 978-1-62708-349-2
...-fluorescence microscopy uses an ultraviolet light source (mercury or xenon) for illumination. The light is transmitted though an excitation filter that blocks all but a narrow bandwidth of the light spectrum. The narrow bandwidth of light strikes the sample surface and is mostly reflected. However, some...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030223
EISBN: 978-1-62708-349-2
... into the composite system performance. To perform this analysis, an ultrathin section (0.5 to 5 μm) must be developed from the honeycomb sandwich structure composite part to be able to use all of the contrast techniques of transmitted-light microscopy. Figure 13.1 shows an area of a honeycomb-cored sandwich...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030177
EISBN: 978-1-62708-349-2
... lead to ambient- and elevated-temperature property degradation. In the following figures, ultrathin sections were developed from the composite materials to use transmitted-light optical microscopy contrast techniques to determine the phases. Figure 10.1 shows a cross section of a carbon-fiber...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030193
EISBN: 978-1-62708-349-2
...-fluorescence can prove to be very valuable. Further information regarding the effect on the matrix microstructure, including matrix strains and fracture morphology, can be determined with the development of ultrathin sections and transmitted polarized light or one of many other contrast methods. Through...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.9781627083492
EISBN: 978-1-62708-349-2
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030001
EISBN: 978-1-62708-349-2
... macrophotograph Fig. 1.16 Ultrathin section showing the microstructure of spruce wood. Transmitted-light phase contrast, 40× objective Optical Microscopy of Composite Materials Optical microscopy is a valuable tool in materials investigations related to problem solving, failure analysis...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1984
DOI: 10.31399/asm.tb.mpp.t67850267
EISBN: 978-1-62708-260-0
...Abstract Abstract This chapter discusses the tools and techniques of light microscopy and how they are used in the study of materials. It reviews the basic physics of light, the inner workings of light microscopes, and the relationship between resolution and depth of field. It explains...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.tb.msisep.t59220085
EISBN: 978-1-62708-259-4
... of light (mostly visible light) with a sample, making possible primarily the observation of color, relief, and polarization, electron microscopy makes use of a variety of metal–electron interaction phenomena to provide valuable information from the sample observation. In many phenomena, electron behavior...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110461
EISBN: 978-1-62708-247-1
.... Figure 22 STEM-BF image of a via in a test structure. The contrast at the interface is masked by diffraction effects. Figure 23 STEM-HAADF mass-contrast image clearly shows dark contrast at the interface, indicative of light elemental composition. Figure 24 (a) High-resolution phase...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030245
EISBN: 978-1-62708-349-2
... matrix in the first ply can easily be seen by using transmitted-light optical microscopy. Deeper under the damage zone, areas of matrix oxidation and microcracking were found in the composite plies. Fig. 15.13 Lightning strike damage in a carbon fiber composite laminate having metal foil...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110153
EISBN: 978-1-62708-247-1
... 1999 , p 371 . [12] Rudolf Schlangen et al. “ Visible Light Probing Sample Thinning Using Targeted Lapping ”, ISTFA 2016 p 174 [13] IBID p 174 [14] Colvin , “ BGA and Advanced Package Wire to Wire Bonding for Backside Emission Microscopy ”, ISTFA 1999 , p 368...
Series: ASM Technical Books
Publisher: ASM International
Published: 23 January 2020
DOI: 10.31399/asm.tb.stemsem.9781627082921
EISBN: 978-1-62708-292-1
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.omfrc.t53030023
EISBN: 978-1-62708-349-2
... and the capability of the microscope used. The polished cross-sectional mounts can be examined with a variety of microscopy techniques, including polarized light, bright- and dark-field illumination, and epi-fluorescence. The viewing of dyed specimens is discussed in Chapter 5, “Viewing the Specimen Using Reflected...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110550
EISBN: 978-1-62708-247-1
... on the incident energy of the beam. These electron-hole pairs can recombine and release energy, radiate light, generate heat or they can result in current through the material. Analysis using the Electron Beam Absorbed Current (EBAC) to detect and isolate faults in nets has been extensively used...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2022
DOI: 10.31399/asm.tb.tstap.t56040055
EISBN: 978-1-62708-428-4
... uses visible light to form an image. Visible light can be reflected, transmitted, scattered, or absorbed to different degrees by filters in the microscope, dust or defects on the lenses, the coating materials, the phases in the materials, and the mount medium; as a result, artifacts can be caused...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610549
EISBN: 978-1-62708-303-4
... and, in general, are either electronic or mechanical in principle. Obviously, small size and light weight are advantages in portable testers. The major components of the portable laboratory may include: In a failure investigation, routine analysis of the material is usually recommended. Often, it is done...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110067
EISBN: 978-1-62708-247-1
... attach region. Figure 22 A real-time x-ray image of the TO-220 package shown in Fig. 16 , taken after temperature cycling. Figure 44 X-ray radiographic inspection (A) and scanning laser acoustic microscopy (SLAM) (B) of IC packages. Figure 1 Coefficient of thermal expansion...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.mgppis.t60400149
EISBN: 978-1-62708-258-7
... of the chapter. Replicas are prepared by different techniques. One type of replica, called a surface or carbon replica, is produced from a specimen as prepared for light microscopy. The specimen surface is coated with a cellulose acetate film (e.g., collodion) to produce a negative impression of the surface...