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Author: James Warren

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1. Workshop Report: Building the Materials Innovation Infrastructure: Data and Standards A Materials Genome Initiative Workshop
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 7898
Published: 11/23/2012
Authors: James A Warren, Ronald F Boisvert
Abstract: The Materials Genome Initiative (MGI) is a multi-agency, multi-stakeholder effort to develop the infrastructure needed to enable the materials science community to discover, develop, manufacture, and deploy advanced materials at least twice as fa ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912684

2. A diffuse-interface Model of Reactive Wetting with Intermetallic Formation
Published: 5/1/2012
Authors: Walter Villaneuva, William J Boettinger, Geoffrey B McFadden, James A Warren
Abstract: A diffuse-interface model of reactive wetting with intermetallic formation is developed that incorporates fluid flow, phase change, and solute diffusion. The model is based on the total molar Gibbs energy of a ternary system with four phases. Numeric ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910117

3. The Effect of Substrate Material on Silver Nanoparticle Antimicrobial Efficacy
Published: 12/1/2010
Authors: Benita Dair, Dave M. Saylor, T. Eric Cargal, Grace R. French, Kristen M. Kennedy, Rachel S. Casas, Jonathan E Guyer, James A Warren, Steven K. Pollack
Abstract: With the advent of Nanotechnology, silver nanoparticles increasingly are being used in coatings, especially in medical device applications, to capitalize on their antimicrobial properties. The increased antimicrobial efficacy of nanoparticulate silv ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903174

4. Predicting Microstructure Development During Casting of Drug Eluting Coatings
Published: 9/19/2010
Authors: David M. Saylor, Jonathan E Guyer, Daniel Wheeler, James A Warren
Abstract: We have devised a novel diffuse interface formulation to model the development of chem- ical and physical inhomogeneities, i.e. microstructure, during the process of casting drug eluting coatings. These inhomogeneities, which depend on the ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905206

5. Modeling Solvent Evaporation During the Manufacture of Controlled Drug Release Coatings and the Impact on Release Kinetics
Published: 8/1/2009
Authors: James A Warren, D M. Saylor, Martin McDermott, D Patwardhan, Chang-Soo Kim
Abstract: To improve functionality and performance, controlled drug release coatings comprised of drug and polymer are integrated with traditional medical devices, e.g. drug eluting stents. Depending on manufacturing conditions, these coatings can exhibit ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=854027

6. Grain boundaries exhibit the dynamics of glass-forming liquids
Published: 5/12/2009
Authors: James A Warren, Jack F Douglas, Hao Zhang, David J Srolovitz
Abstract: Polycrystalline materials are composites of crystalline particles or grains separated by thin amorphous grain boundaries (GBs). Although GBs have been exhaustively investigated at low temperatures, at which these regions are relatively ord ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=901918

7. FiPy: PDEs in Python
Published: 2/23/2009
Authors: Jonathan E Guyer, Daniel Wheeler, James A Warren
Abstract: Partial differential equations (PDEs) are ubiquitous to the mathematical description of physical phenomena. They describe the relationships between functions of more than one independent variable and partial derivatives with respect to those vari ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=854461

8. Modeling Microstructure Development and Release Kinetics in Controlled Drug Release Coatings.
Published: 1/11/2009
Authors: D M. Saylor, James A Warren
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=901784

9. Phase Field Approach to Heterogeneous Crystal Nucleation in Alloys
Published: 1/11/2009
Authors: James A Warren, T Pusztai, L Kornyei, L Granasy
Abstract: We extend the phase field model of heterogeneous crystal nucleation developed recently [L. Granasy, T. Pusztai, D. Saylor, and J. A. Warren, Phys. Rev. Lett. 98, 035703 (2007)] to binary alloys. Three approaches are considered to incorporate foreign ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=900120

10. An Efficient Algorithm for Solving the Phase Field Crystal Model
Published: 6/1/2008
Authors: Mowei Cheng, James A Warren
Abstract: We present and discuss the development an unconditionally stable algorithm to solving the evolution equations for the Phase Field Crystal (PFC) model. This algorithm allows for an arbitrarily large algorithmic time step. As the basis for our analys ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=853481



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