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Search Publications by: Martin Y. M. Chiang (Assoc)

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Displaying 26 - 50 of 63

Combinatorial and High-Throughput Measurement of the Modulus of Thin Polymer Films

June 1, 2005
Author(s)
Christopher M. Stafford, Shu Guo, Martin Y. Chiang, C Harrison
Considerable attention has been devoted to developing fabrication strategies for constructing combinatorial material libraries as well as tools for characterizing the chemical and physical properties of such libraries. Less attention has been dedicated to

Combinatorial Peel Tests for the Characterization of Adhesion Behavior of Polymeric Films

February 1, 2005
Author(s)
R Song, Martin Chiang, A J. Crosby, Alamgir Karim, Eric J. Amis, Naomi Eidelman
The self-adhesion behavior of an optically smooth poly(methyl methacrylate) (PMMA) thin film (ca.. 100 nm) on different evaporated metal substrates has been investigated using a combinatorial method approach. In this investigation through high-throughput

Combinatorial Approaches for Characterizing Thin Film Bond Strength

January 1, 2005
Author(s)
Martin Chiang, D Kawaguchi, Christopher Stafford
A combinatorial approach to the edge delamination test was carried out to obtain the failure map of the epoxy/glass bond joint as a function of both temperature and film thickness. In the combinatorial test, a single specimen of an epoxy film bonded to a

Elastic Instability of Multilayer Films Coated on Substrates

January 1, 2005
Author(s)
Shu Guo, Martin Y. Chiang, Christopher M. Stafford
Mechanical properties of ultra-thin (submicrometer) films coated on a substrate are paramount in many applications. One question arises as to whether the physical and mechanical properties of supported thin films in applications can be significantly

High-Throughput Modulus Measurements of Ultra-Soft Polymer Networks

January 1, 2005
Author(s)
Elizabeth A. Wilder, Shu Guo, Martin Chiang, Christopher Stafford
A metrology for rapidly measuring the modulus of ultra-soft polymer networks has been developed. The method utilizes compression-induced buckling of a sensor film that is applied to the surface of the specimen, where the modulus-dependent buckling

Stress Analysis for Combinatorial Buckling-Based Metrology of Thin Film Modulus

January 1, 2005
Author(s)
Shu Guo, Christopher M. Stafford, Martin Y. Chiang
We recently reported on a new buckling-based metrology for probing the elastic modulus of thin polymer films. In this experimental geometry, a thin film of interest is transferred to a relatively thick elastic substrate, and buckling is induced by

Permeability of Polymeric Scaffolds With Defined Pore Micro-Architecture and Interconnectivity Fabricated by Solid Free-Form Microprinting

November 7, 2004
Author(s)
K W. Lee, E Jabbari, L L. Lu, B L. Currier, Joy Dunkers, Martin Chiang, John A. Tesk, Marcus T. Cicerone, M J. Yaszemski
The hydraulic permeability of was measured as a function of interconnectivity of the pores. The hydraulic permeability of porous scaffolds for tissue engineering of bone was measured as interconnectivity of the pores was changed from 100 % to 70 %. The

Combinatorial Edge Delamination Test for Thin Film Adhesion Concept, Procedure, Results

July 1, 2003
Author(s)
Martin Y. Chiang, J He, R Song, Alamgir Karim, Wen-Li Wu, Eric J. Amis
A high-throughput combinatorial approach to edge delamination test is proposed to map the failure of adhesion as a function of both temperature and film thickness in a single step. In this approach, a single specimen of a thin film bonded to a substrate

Application of the V-Notch Shear Testing for Unidirectional Hybrid Composities

December 1, 2002
Author(s)
J He, Martin Y. Chiang, Donald L. Hunston, Charles C. Han
The v-notch (losipescu) shear test was investigated as a mean for determining the in-plane shear modulus and strength of unidirectional hybrid composites. Two types of hybrid systems having different fiber tow volume fractions composed of carbon and glass