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Abstract:

Some metallographic observations of the surface of polycrystalline specimens in an optical microscope illuminated with a HeNe laser beam, at oblique incidence, are compared with observations with white light also at oblique incidence. It is shown that similar effects are obtained in both cases; however, the width of the maximum in the dispersed intensity is narrower in the case of illumination with the laser beam. In addition, this kind of illumination permits us to distinguish distinct angular directions of the surface roughness. © 1997 Elsevier Science Ltd. All rights reserved.

Registro:

Documento: Artículo
Título:Unidirectional laser oblique illumination (ULOI): A comparison with partial dark field illumination (PDFI) in the optical microscopy of metals
Autor:Povolo, F.; Canzian, A.; Favret, E.
Filiación:Universidad de Buenos Aires, Fac. de Ciencias Exactas y Naturales, Dto. de Física, 1428 Buenos Aires, Argentina
Comn. Nac. de Ener. Atómica, Unidad de Actividad Materiales, Av. del Libertador 8250, 1429 Buenos Aires, Argentina
Consejo Nac. de Invest. Cie. y Tec., Buenos Aires, Argentina
Facultad Regional Pacheco, Univ. Tecnológica Nacional, H. Yrigoyen 288, 1617 Gral. Pacheco, Bs. As., Argentina
Palabras clave:Laser metallography; Optical microscopy of metals; Partial dark field illumination; Electromagnetic dispersion; Helium neon lasers; Laser beams; Lighting; Metallography; Metals; Optical variables measurement; Polycrystalline materials; Laser metallography; Partial dark field illumination (PDFI); Unidirectional laser oblique illumination (ULOI); Optical microscopy
Año:1997
Volumen:29
Número:2
Página de inicio:67
Página de fin:73
DOI: http://dx.doi.org/10.1016/S0030-3992(96)00043-6
Título revista:Optics and Laser Technology
Título revista abreviado:Opt Laser Technol
ISSN:00303992
CODEN:OLTCA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00303992_v29_n2_p67_Povolo

Referencias:

  • Povolo, F., Zalcman, S., Canzian, A., Favret, E., (1990) Mater Char, 24, p. 103
  • Povolo, F., Favret, E., Canzian, A., (1991) Mater Char, 27, p. 137
  • Favret, E., Canzian, A., Povolo, F., (1994) Proc 49th Intern Congress in Metall, 1, p. 275. , ABM, Associação Brasileira de Metalurgia e Materials, São Paulo, Brasil
  • Favret, E., Canzian, A., Povolo, F., (1995) Proc Int Metall Conf 95, , Colmar, France in press
  • Gifkins, R.C., (1970) Optical Microscopy of Metals, p. 53. , Sir Isaac Pitman & Sons, London
  • Povolo, F., Favret, E., Canzian, A., to be published; Povolo, F., Favret, E., Canzian, A., Practical Metallography, , accepted for publication
  • Welford, W.T., (1980) Contemp Phys, 21, p. 401
  • Hemsey, D.A., (1990) Applied Polymer Light Microscopy, p. 39. , Elsevier Applied Science, London
  • Pluta, M., (1989) Advanced Light Microscopy, 2, p. 105. , Elsevier, Amsterdam

Citas:

---------- APA ----------
Povolo, F., Canzian, A. & Favret, E. (1997) . Unidirectional laser oblique illumination (ULOI): A comparison with partial dark field illumination (PDFI) in the optical microscopy of metals. Optics and Laser Technology, 29(2), 67-73.
http://dx.doi.org/10.1016/S0030-3992(96)00043-6
---------- CHICAGO ----------
Povolo, F., Canzian, A., Favret, E. "Unidirectional laser oblique illumination (ULOI): A comparison with partial dark field illumination (PDFI) in the optical microscopy of metals" . Optics and Laser Technology 29, no. 2 (1997) : 67-73.
http://dx.doi.org/10.1016/S0030-3992(96)00043-6
---------- MLA ----------
Povolo, F., Canzian, A., Favret, E. "Unidirectional laser oblique illumination (ULOI): A comparison with partial dark field illumination (PDFI) in the optical microscopy of metals" . Optics and Laser Technology, vol. 29, no. 2, 1997, pp. 67-73.
http://dx.doi.org/10.1016/S0030-3992(96)00043-6
---------- VANCOUVER ----------
Povolo, F., Canzian, A., Favret, E. Unidirectional laser oblique illumination (ULOI): A comparison with partial dark field illumination (PDFI) in the optical microscopy of metals. Opt Laser Technol. 1997;29(2):67-73.
http://dx.doi.org/10.1016/S0030-3992(96)00043-6