Thermoelectric properties of cobalt triantimonide (CoSb3) prepared by an electrochemical technique / by J. Wolfenstine [and others].

Format:

Book

Government document

Contributor:

Wolfenstine, Jeff

U.S. Army Research Laboratory

Series:

ARL-TR (Aberdeen Proving Ground, Md.) ; 5141.

ARL-TR ; 5141

Language:

English

Subjects (All):

Cobalt alloys.

Thermoelectric materials.

Nanotechnology.

Physical Description:

1 online resource (vi, 14 pages) : color illustrations.

Place of Publication:

Aberdeen Proving Ground, MD : Army Research Laboratory, [2010]

Summary:

A novel electrochemical method has been used to transform an n-type skutterudite of composition Co0.95Pd0.05Te0.05Sb2.95 from a starting material having a crystalline structure with a grain size of about 1 micron into a material with an amorphous structure and a nanoscale grain size (70 nm). Differential scanning calorimetry revealed that crystallization of the amorphous Co0.95Pd0.05Te0.05Sb2.95 powders occurs between 220-260 deg C. The electrical resistivity (4-point), Seebeck coefficient, and ZT of the nanoscale-amorphous material were greatly reduced compared to the micron-crystalline starting material. Our findings suggest that the major cause for this is the change in structure from crystalline to amorphous.

Notes:

Title from title screen (viewed on Apr. 1, 2011).

"April 2010."

Includes bibliographical references.

Other Format:

Paper version: Thermoelectric properties of cobalt triantimonide (CoSb3) prepared by an electrochemical technique

OCLC:

710980890

Access Restriction:

APPROVED FOR PUBLIC RELEASE.