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Search Publications by: Li Piin Sung (Fed)

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Displaying 101 - 116 of 116

Optical Reflectance of Metallic Coatings: Effect of Aluminum Flake Orientation

September 1, 2002
Author(s)
Li Piin Sung, Maria E. Nadal, M E. McKnight, Egon Marx, B Laurenti
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

Investigation of Morphology and Interface in Polymer Composite Thin Films

July 1, 2002
Author(s)
C. K. Chiang, Li Piin Sung, R Popielarz
Laser scanning confocal microscopy (LSCM) has been applied to examine the filler particles and their distribution in BaTiO3-polymer composite films. We have measured thin-slice images of the composite films at various depths from the film surface and

Nanocharacterization of Surface and Interface of Different Epoxy Networks

January 1, 2002
Author(s)
Xiaohong Gu, D T. Raghavan, D L. Ho, Li Piin Sung, Mark R. VanLandingham, Tinh Nguyen
The effect of network changes on the surface and interface properties of amine-cured epoxy has been investigated. Samples of different crosslinked epoxies are prepared by mixing stoichiometrically pure diglycidyl ether of bisphenol A (n=0.03) with

Phase Separation in Ultrathin Polymer Films

January 1, 2002
Author(s)
Alamgir Karim, Jack F. Douglas, Li Piin Sung, B D. Ermi
Changes in phase separation morphology occurring in thin polymer blend films is discussed. These changes are especially large when the films are thinner than the scale of the bulk material interfacial profile width. Under these circumstances, phase

Effect of Aluminum Flake Orientation on Coating Appearance

November 1, 2001
Author(s)
Li Piin Sung, Maria E. Nadal, M E. McKnight, Egon Marx, R Dutruc-Rosset, B Laurenti
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

Characterization of Coating Microstructure Using Laser Scanning Confocal Microscopy

August 1, 2000
Author(s)
Li Piin Sung, Maria E. Nadal, Paul E. Stutzman, M E. McKnight
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 of the

Neutron Reflectivity Study of Diblock Formation During Reactive Blending Processes

August 1, 2000
Author(s)
Makoto Hayashi, H Grull, A R. Esker, M J. Weber, Li Piin Sung, Sushil K. Satija, Charles C. Han, TT Hashimoto
In a series of neutron reflectivity experiments, we studied the fundamental process of diblock formation during reactive blending processes of an immiscible blend comprised of normal polysulfone (hPSU) containing 30 % reactive endgroup-modified deuterated

Adsorption of Dodecahydroxylated-Fullerene Monolayers at the Air Water Interface

January 1, 2000
Author(s)
Li Piin Sung, W J. Liua, U Jeng, T L. Lin, S H. Laib, M C. Shih, C S. Tsao, L Y. Wang
We study the adsorption behaviors of dodecahydroxylated-fullerene C60(OH)12 at the air-water interface. With the hydrophilicity imposed by the 12 hydroxy groups randomly bounded on the C60 cage, C60(OH)12 can dissolve in water slightly. Surface pressure

Polarization of Light Scattered by Particles on Silicon Wafers

January 1, 1999
Author(s)
Li Piin Sung, George W. Mulholland, Thomas Germer
Bidirectional ellipsometry has been developed as a technique for distinguishing among various scattering features near surfaces.Employi Employing incident light with fixed polarization, the technique measures the principal angle of polarization and the
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