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Author: maria nadal

Displaying records 31 to 40 of 60 records.
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31. Modeling the Appearance of Special Effect Pigment Coatings
Published: 10/1/2001
Authors: Thomas Avery Germer, Maria E Nadal
Abstract: Metallic and pearlescent coatings are becoming increasingly important in automotive, currency, and cosmetic applications. These coatings consist of metallic or dielectric platelets suspended in a binder, and are often applied between a pigmented und ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841580

32. NIST Reference Goniophotometer for Specular Gloss Measurements
Published: 6/1/2001
Authors: Maria E Nadal, Ambler Thompson
Abstract: The measurement of specular gloss consists of comparing the luminous reflectance from a test specimen to that from a gloss standard, under the same geometric conditions. The reference goniophotometer described here was designed and characterized to ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841460

33. Measurements and Predictions of Light Scattering by Clear Coatings
Published: 5/1/2001
Authors: M E. McKnight, Theodore Vincent Vorburger, Egon Marx, Maria E Nadal, P Y. Barnes, Michael A Galler
Abstract: Comparisons are made between calculations and measured angle-resolved light scattering distributions from clear dielectric isotropic epoxy coatings over a range of rms roughness conditions, resulting in strongly specular scattering characteristics. ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860265

34. Effect of Aluminum Flake Orientation on Coating Appearance
Published: 1/1/2001
Authors: L Sung, Maria E Nadal, M E. McKnight, Egon Marx, R Dutruc, B Laurenti
Abstract: The orientation of platelet-like pigments in coatings is affected by the processing conditions resulting in appearance variations of the final product. A set of aluminum-flake pigmented coatings having different flake orientations was pre-pared using ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=821773

35. Modeling the Appearance of Special Effect Pigment Coatings, ed. by Z.H. Gu and A.A. Maradudin
Published: 1/1/2001
Authors: Thomas Avery Germer, Maria E Nadal
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=104835

36. New Primary Standard for Specular Gloss Measurements
Published: 12/1/2000
Authors: Maria E Nadal, E A Thompson
Abstract: The measurement of specular gloss consists in comparing the luminous reflectance from a specimen to that from a calibrated gloss standard, under the same geometric conditions. The standard recommendations for the gloss standard are discussed. A new ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841400

37. Intercomparison of Regular Spectral Transmittance and Reflectance Measurements with FTIR- and Monochromator-Based Spectrophotometers
Published: 10/1/2000
Authors: Simon Grant Kaplan, Leonard M Hanssen, E A. Early, Maria E Nadal
Abstract: We have performed regular spectral transmittance and reflectance measurements over the 1 mm to 2.5 mm wavelength region on several different types of materials using three different spectrophotometer systems. Two of the systems employ grating-based ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841485

38. Investigation of the Relationship Between Microstructure and Appearance Properties of Coating Materials
Published: 10/1/2000
Authors: Li Piin Sung, Maria E Nadal, M E. McKnight, J V Nguyen, C -J Lin
Abstract: A series of experiments was carried out to investigate the relationship between the microstructure and the appearance of coated materials using confocal laser microscopy and optical scattering metrology. Microstructural properties such as surfaces r ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860269

39. Standardization of Reflectance Colorimetry for Manufactured Products
Published: 10/1/2000
Authors: Maria E Nadal, E A. Early
Abstract: The National Institute of Standards and Technology is conducting a study to advance the science of characterizing and modeling the appearance characteristics of coatings. This paper briefly describes two projects in the area of reflectance colorimet ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841474

40. Characterization of Coating Microstructure Using Laser Scanning Confocal Microscopy
Published: 8/1/2000
Authors: Li Piin Sung, Maria E Nadal, Paul E Stutzman, M E. McKnight
Abstract: The appearance of coating materials depends on the physical attributes of the object's interaction with light. These physical attributes include the light source, the angle of illumination, the viewing angle, and the optical reflectance properties o ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=860267



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