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Search Publications by: Joshua B Martin (Fed)

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Displaying 51 - 54 of 54

Facile Chemical Synthesis of Nanocrystalline Thermoelectric Alloys Based on Bi-Sb-Te-Se

August 2, 2010
Author(s)
Anuja Datta, Jagannath Paul, Arik Kar, Amitava Patra, Z. L. Sun, Lidong Chen, Joshua B. Martin, George S. Nolas
High yield syntheses of size confined Bi2Te3, Sb2Te3 and their alloy nanoparticles and nanoflakes were carried out by a facile glycol mediated solvothermal process. Phase purity and good crystalline quality were achieved for all alloy compositions by this

Recent Developments in Thermoelectric Metrology at NIST

July 10, 2010
Author(s)
Winnie K. Wong-Ng, Joshua B. Martin, Nathan Lowhorn, Makoto Otani, Evan L. Thomas, Martin L. Green, Jason Hattrick-Simpers, Yonggao Y. Yan, Thanh Tran, Jihui Yang
We have successfully developed several important thermoelectric metrologies in recent years at NIST. First, a low temperature (10 K to 390 K) Seebeck coefficient Standard Reference Material (SRM™), Bi2Te3, which is crucial for inter-laboratory data

Phase Compatibility of the Thermoelectric Compounds in the Sr-Ca-Co-O System

April 14, 2010
Author(s)
Winnie K. Wong-Ng, Guangyao Liu, Joshua B. Martin, Evan L. Thomas, Nathan Lowhorn, James A. Kaduk
Two low-dimensional cobaltite series in the Sr-Ca-Co-O system have been investigated for their solid solution limit, structure, and compatibility phase relationships (850 deg C in air). Thermoelectric properties have been measured for selected members of

Statistical analysis of a round-robin measurement survey of two candidate materials for a Seebeck coefficient Standard Reference Material

February 2, 2009
Author(s)
John Lu, Nathan Lowhorn, Winnie Wong-Ng, Weiping Zhang, Evan L. Thomas, Makoto Otani, Martin L. Green, Thanh N. Tran, Chris Caylor, Neil Dilley, Adams Downey, B Edwards, Norbert Elsner, S Ghamaty, Timothy Hogan, Qing Jie, Qiang Li, Joshua B. Martin, George S. Nolas, H Obara, Jeffrey Sharp, Rama Venkatasubramanian, Rhonda Willigan, Jihui Yang, Terry Tritt
In an effort to develop a Standard Reference Material (SRM ) for Seebeck coefficient, we have conducted a round-robin measurement survey of two candidate materials undoped Bi2Te3 and constantan (55% Cu and 45% Ni alloy). Measurements were performed in two
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