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epi-bright-field illumination

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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
... to view a specimen. These consist of epi-bright-field illumination, epi-dark-field illumination, epi-polarized light, and epi-fluorescence. The article also provides information on transmitted light microscopy. References References 1. Mallick P.K. , Fiber-Reinforced Composites, Materials...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0009079
EISBN: 978-1-62708-177-1
... after the application of a fluorescing dye (Magnaflux Zylgo, Magnaflux Corp.) and epi-fluorescence. (a) Bright-field illumination, 10× objective, with an inset showing the crack using epi-fluorescence. (b) Epi-fluorescence, 390–440 nm excitation, 25× objective Fig. 12 Intraply microcracks...
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
... cross section showing the differences in contrast methods. The composite morphology and microcracks appear significantly different using these epi-illumination modes. One transmitted-light method is shown for reference. (a) Bright-field illumination, 25× objective. (b) Dark-field illumination, 25...
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
... epoxy casting resin. The use of epi-bright-field illumination does not allow the dye to fluoresce, and therefore, the cracks are hard to distinguish. Bright-field montage, 5× objective Fig. 4 Impact damage of a carbon fiber composite material that has a toughened matrix. (a) Montage...
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
... condition using epi-bright-field illumination, it can be observed in Fig. 8 that there is a stratification of resin-rich areas between the fiber beds. Figure 8 also reveals a dispersed phase in between the fiber beds that is nearly circular (near spherical in three dimension) and varies in size from 3...
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
... light, phase contrast, 40× objective. (b and c) Transmitted light, phase contrast, 20× objective Fig. 4 Solvent-generated voids in the prepreg skins and fillet areas of a honeycomb sandwich structure composite. (a and b) Bag side. (c) Tool side. Epi-bright-field illumination, 5× objective...
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
... fastener. Slightly uncrossed polarized light, 25× objective Fig. 11 Area sectioned 1.5 mm (0.06 in.) from the titanium fastener/composite. (a) Bright-field illumination, 25× objective. (b) Epi-fluorescence, 390–440 nm excitation, 25× objective Fig. 12 Interply and intraply arcing events...
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
... Fig. 1 Composite cross sections. (a) Sheet molding compound made from carbon-black-filled epoxy resin and chopped glass fiber. Bright-field illumination, 65 mm macrophotograph montage. (b) Quasi-isotropic unidirectional prepreg laminate. Slightly uncrossed polarized light, 5× objective...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0009084
EISBN: 978-1-62708-177-1
... of a woven carbon fabric composite after 10 years of sunlight exposure. Epi-fluorescence, 390–440 nm excitation, 25× objective Fig. 5 Degradation of a composite surface after exposure to atomic oxygen. (a) Bright-field illumination, 25× objective. (b) Transmitted light, differential interference...
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
... and changes in color, indicating changes in the frequency of light. An example of several contrast methods applied to one material was shown in Fig. 1 . At low magnification, bright field shows the composite with good contrast. Hoffman modulation contrast at 100× and DIC at 200× are used to bring out...
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
... 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 the article, “Viewing the Specimen Using Reflected-Light...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.9781627082136
EISBN: 978-1-62708-213-6
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.9781627081627
EISBN: 978-1-62708-162-7