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Search Publications by: Winnie Wong-Ng (Assoc)

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Displaying 201 - 225 of 549

Seebeck Coefficient Metrology: Do Contemporary Protocols Measure Up?

January 29, 2015
Author(s)
Joshua B. Martin, Winnie K. Wong-Ng, Martin L. Green
Comparative measurements of the Seebeck coefficient are challenging due to the diversity of instrumentation and measurement protocols. With the implementation of standardized measurement protocols and the use of Standard Reference Materials (SRMs®), for

High Throughput Screening Tools for Thermoelectric Materials

December 4, 2014
Author(s)
Winnie K. Wong-Ng, Yonggao Yan, Makoto Otani, Joshua B. Martin, Kevin R. Talley, Sara C. Barron, David L. Carroll, C Hewitt, Howard Joress, Evans L. Thomas, Martin L. Green, Xinfeng Tang
A suite of complementary high-throughput screening systems for combinatorial films was developed at NIST to facilitate the search for efficient thermoelectric materials. These custom-designed capabilities include a facility for combinatorial thin film

Polymer Composites for Energy Harvesting Conversion and Storage

November 10, 2014
Author(s)
Winnie K. Wong-Ng, Lan Li, Jeffrey Sharp
The 245th American Chemical Society (ACS) Meeting and Exposition was held in Morial Convention Center, New Orleans, Louisiana, on April 7-11, 2013. This proceedings volume contains articles that were presented at the symposium on Polymer Composites for

Structural characterization of Bi2Te3 and Sb2Te3 as a Function of Temperature Using Neutron Powder Diffraction (NPD) and Extended X-ray Absorption Fine Structure (EXAFS) Techniques

August 28, 2014
Author(s)
Winnie Wong-Ng, Azzam Mansour, Qingzhen Huang, Weihua Tang, Jeff Sharp, Alan Thompson
The structure of Bi2Te3 (Seebeck coefficient Standard Reference Material (SRM™ 3451)), and the related phase Sb2Te3 have been characterized as a function of temperature using the neutron powder diffraction (NPD) and the extended X-ray absorption fine

Structures and thermoelectric properties of double-filled (CaxCe1-x)Fe4Sb12 skutterudites

July 9, 2014
Author(s)
Yonggao Y. Yan, Winnie Wong-Ng, James A. Kaduk, Matthew Suchomel, Xiang Sun, Gangjian Tan, Xinfeng Tang, Lan (. Li, Igor Levin
The structures and thermoelectric properties of double-filled (CaxCe1-x)Fe4Sb12 series (x=0, 0.25, 0.5, 0.75, and 1) have been investigated using the combination of experimental and computational approaches. Structural analysis shows that single phases of

Phase Equilibria and Crystal Chemistry of the CaO-?Nd2O3-CoOz System at 885 degC in Air

March 18, 2014
Author(s)
Winnie K. Wong-Ng, William Laws, Kevin R. Talley, Qingzhen Huang, Jun Yan, Joshua B. Martin, James A. Kaduk
The phase diagram of the CaO-¿Nd2O3-CoOz system at 885 °C in air has been determined. The system consists of two calcium cobaltate compounds that have promising thermoelectric properties, namely, the 2D thermoelectric oxide solid solution, (Ca3-xNdx)Co4O9

Measurement, Standards, and Data Needs for CO2 Capture Materials: A Critical Review

October 21, 2013
Author(s)
Laura Espinal, Dianne L. Poster, Winnie K. Wong-Ng, Andrew J. Allen, Martin L. Green
The commercial deployment of cost-effective carbon capture technology is hindered partially by the lack of a proper suite of materials-related standards, data, and measurement methods, which would provide critical information for the systematic design of