Effects of partial substitution of Ni by Pd on the thermoelectric properties of ZrNiSn-based half-Heusler compounds

Q. Shen; L. Chen; T. Goto; T. Hirai; J. Yang; G. P. Meisner; C. Uher

doi:10.1063/1.1425459

Effects of partial substitution of Ni by Pd on the thermoelectric properties of ZrNiSn-based half-Heusler compounds

Q. Shen, L. Chen, T. Goto, T. Hirai, J. Yang, G. P. Meisner, C. Uher

Research output: Contribution to journal › Article › peer-review

340 Citations (Scopus)

Abstract

We report on the effects of partial substitution of nickel by palladium on the thermoelectric properties of ZrNiSn-based half-Heusler compounds. It is shown that the substitution of palladium for nickel results in a significant, beneficial reduction of the thermal conductivity. The Seebeck coefficient also decreases, but only by a small amount. In the Hf_0.5Zr_0.5Ni_0.8Pd_0.2Sn _0.99Sb_0.01 compound, a power factor of 22.1 μW K^-2 cm^-1 and a thermal conductivity as low as 4.5 W/m K are measured at room temperature. The dimensionless figure of merit ZT increases with increasing temperature and reaches a maximum value of 0.7 at about 800 K.

Original language	English
Pages (from-to)	4165-4167
Number of pages	3
Journal	Applied Physics Letters
Volume	79
Issue number	25
DOIs	https://doi.org/10.1063/1.1425459
Publication status	Published - 2001 Dec 17
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

Access to Document

10.1063/1.1425459

Cite this

@article{5b11d2d684054f36a2220fe17cff9c9a,

title = "Effects of partial substitution of Ni by Pd on the thermoelectric properties of ZrNiSn-based half-Heusler compounds",

abstract = "We report on the effects of partial substitution of nickel by palladium on the thermoelectric properties of ZrNiSn-based half-Heusler compounds. It is shown that the substitution of palladium for nickel results in a significant, beneficial reduction of the thermal conductivity. The Seebeck coefficient also decreases, but only by a small amount. In the Hf0.5Zr0.5Ni0.8Pd0.2Sn 0.99Sb0.01 compound, a power factor of 22.1 μW K-2 cm-1 and a thermal conductivity as low as 4.5 W/m K are measured at room temperature. The dimensionless figure of merit ZT increases with increasing temperature and reaches a maximum value of 0.7 at about 800 K.",

author = "Q. Shen and L. Chen and T. Goto and T. Hirai and J. Yang and Meisner, {G. P.} and C. Uher",

year = "2001",

month = dec,

day = "17",

doi = "10.1063/1.1425459",

language = "English",

volume = "79",

pages = "4165--4167",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics Publising LLC",

number = "25",

}

TY - JOUR

T1 - Effects of partial substitution of Ni by Pd on the thermoelectric properties of ZrNiSn-based half-Heusler compounds

AU - Shen, Q.

AU - Chen, L.

AU - Goto, T.

AU - Hirai, T.

AU - Yang, J.

AU - Meisner, G. P.

AU - Uher, C.

PY - 2001/12/17

Y1 - 2001/12/17

N2 - We report on the effects of partial substitution of nickel by palladium on the thermoelectric properties of ZrNiSn-based half-Heusler compounds. It is shown that the substitution of palladium for nickel results in a significant, beneficial reduction of the thermal conductivity. The Seebeck coefficient also decreases, but only by a small amount. In the Hf0.5Zr0.5Ni0.8Pd0.2Sn 0.99Sb0.01 compound, a power factor of 22.1 μW K-2 cm-1 and a thermal conductivity as low as 4.5 W/m K are measured at room temperature. The dimensionless figure of merit ZT increases with increasing temperature and reaches a maximum value of 0.7 at about 800 K.

AB - We report on the effects of partial substitution of nickel by palladium on the thermoelectric properties of ZrNiSn-based half-Heusler compounds. It is shown that the substitution of palladium for nickel results in a significant, beneficial reduction of the thermal conductivity. The Seebeck coefficient also decreases, but only by a small amount. In the Hf0.5Zr0.5Ni0.8Pd0.2Sn 0.99Sb0.01 compound, a power factor of 22.1 μW K-2 cm-1 and a thermal conductivity as low as 4.5 W/m K are measured at room temperature. The dimensionless figure of merit ZT increases with increasing temperature and reaches a maximum value of 0.7 at about 800 K.

UR - http://www.scopus.com/inward/record.url?scp=0035905208&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0035905208&partnerID=8YFLogxK

U2 - 10.1063/1.1425459

DO - 10.1063/1.1425459

M3 - Article

AN - SCOPUS:0035905208

VL - 79

SP - 4165

EP - 4167

JO - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

IS - 25

ER -

Effects of partial substitution of Ni by Pd on the thermoelectric properties of ZrNiSn-based half-Heusler compounds

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this