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transmitted light microscopy

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Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0009076
EISBN: 978-1-62708-177-1
... Abstract This article describes the various aspects relating to the selection and preparation of ultrathin-section specimens of fiber-reinforced polymeric composites for examination by transmitted light microscopy. It provides information on the contrast-enhancement methods used by transmitted...
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Published: 01 December 2004
Fig. 8 Transmitted-light microscopy of the natural fiber composite ultrathin section. Phase contrast, 40× objective More
Image
Published: 01 December 2004
Fig. 9 Transmitted-light microscopy of the natural fiber composite ultrathin section. Hoffman modulation contrast, 40× objective More
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003464
EISBN: 978-1-62708-195-5
...-fluorescence. The article also provides information on transmitted light microscopy. composite materials epi-bright-field illumination epi-dark-field illumination epi-fluorescence epi-polarized light failure analysis illumination methods mounting polishing quality control reflected light...
Image
Published: 01 December 2004
Preparation and Transmitted-Light Microscopy” ), this mold geometry is necessary. More
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0009082
EISBN: 978-1-62708-177-1
... differential scanning calorimetry, x-ray analysis, or density measurements, these analytical methods provide little, if any, information on the origin and microstructure of the crystallinity in the composite. To determine the morphology of thermoplastic-matrix composites, transmitted polarized-light microscopy...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0009094
EISBN: 978-1-62708-177-1
..., “Special Sample Preparation and Polishing,” D. Jean Ray for her contributions to the article, “Thin-Section Preparation and Transmitted Light Microscopy,” and Anthony Falcone for his contributions to the article “The Effects of Lightning Strikes on Polymeric Composites.” ...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0009075
EISBN: 978-1-62708-177-1
... differences arise from relief on the specimen surfaces. Fluorescence Microscopy Epi-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...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0009080
EISBN: 978-1-62708-177-1
... of the thermosetting resin. As a result, the phase separation of the rubber may be incomplete, which can 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...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0009083
EISBN: 978-1-62708-177-1
... 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 1 shows an area of a honeycomb-cored sandwich structure composite cross section that is viewed...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0009081
EISBN: 978-1-62708-177-1
..., 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 the use of these techniques, a complete analysis of the damage response of fiber-reinforced composite materials...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003753
EISBN: 978-1-62708-177-1
... transmitted light microscopy can be more effectively used in the microstructural imaging of polymers (where specimens may allow more light transmission). The choice of method also depends on imaging requirements such as resolution, magnification, depth of field, and lens aberration. These factors may...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0009071
EISBN: 978-1-62708-177-1
... in.) macrophotograph Fig. 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...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003252
EISBN: 978-1-62708-199-3
... light and dark contrast in the image. Grains that transmitted a high percentage of the incident beam appear bright, and those that diffracted more of the incident beam appear dark. Figure 17 shows an example of this type of grain contrast. Fig. 17 Transmission electron microscopy grain...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0009072
EISBN: 978-1-62708-177-1
... Preparation and Transmitted-Light Microscopy” ), this mold geometry is necessary. Summary of Mounting Procedure The following steps are recommended to achieve a good mounted specimen without voids or specimen pull-out: Select a mold to hold the specimens, and coat with a mold release agent...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0009085
EISBN: 978-1-62708-177-1
.... Further preparation of the reflected-light sample to an ultrathin-section sample revealed more information about the heat generation created by the lightning strike. The vaporized and degraded matrix in the first ply can easily be seen by using transmitted-light optical microscopy. Deeper under the damage...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006681
EISBN: 978-1-62708-213-6
..., and spectrometry techniques with data analysis. electron diffraction transmission electron microscopy crystal structure Overview Introduction Microstructure observation is an essential approach for materials characterization, which is primarily performed by using light optical microscopy...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005685
EISBN: 978-1-62708-198-6
... microscopy for the analysis of materials and device components generally refers to reflected light microscopy. In this method, light is reflected from the sample surface through the microscope objective to an eyepiece, view screen, or camera. Transmitted light is occasionally used for transparent...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003754
EISBN: 978-1-62708-177-1
..., to obtain additional information, are also described. The article concludes with information on photomicroscopy and macrophotography. bright-field illumination dark-field illumination depth of field interference-contrast illumination light microscopy macrophotography mechanical components...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003788
EISBN: 978-1-62708-177-1
..., their characteristics and sample preparation procedures. It reviews the methods pertaining to the microstructural examination of bulk magnetic materials, including microscopy techniques specified to magnetic materials characterization, with specific examples. The techniques used in the study of magnetic domain...