High-temperature thermoelectric properties of Ti0.5(ZrHf) 0.5-xNbxNi0.9Pd0.1Sn 0.98Sb0.02 half-Heusler alloys

Ping Jen Lee; Long Sun Chao

doi:10.1016/j.jallcom.2010.05.086

High-temperature thermoelectric properties of Ti_0.5(ZrHf) _0.5-xNb_xNi_0.9Pd_0.1Sn _0.98Sb_0.02 half-Heusler alloys

Ping Jen Lee, Long Sun Chao

工程科學系

研究成果: Article › 同行評審

16 引文斯高帕斯（Scopus）

摘要

The effects of Nb substitution at the IV metal site on the thermoelectric properties of Ti_0.5(ZrHf)_0.5-xNb_xNi _0.9Pd_0.1Sn_0.98Sb_0.02 half-Heusler alloy compounds were investigated by measuring the electrical resistivity, Hall effect, Seebeck coefficient and thermal conductivity. Changes in its microstructure were characterized using SEM and X-ray diffraction. It was shown that the substitution of Nb for TiNiSn-based alloys led to a significant reduction in the thermal conductivity due to the increase in defects and an enhancement of the electrical conductivity. The best sample reached a ZT of 0.66 at 900 K with an Nb content of x = 0.01.

原文	English
頁（從 - 到）	192-196
頁數	5
期刊	Journal of Alloys and Compounds
卷	504
發行號	1
DOIs	https://doi.org/10.1016/j.jallcom.2010.05.086
出版狀態	Published - 2010 8月 31

All Science Journal Classification (ASJC) codes

材料力學
機械工業
金屬和合金
材料化學

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10.1016/j.jallcom.2010.05.086

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title = "High-temperature thermoelectric properties of Ti0.5(ZrHf) 0.5-xNbxNi0.9Pd0.1Sn 0.98Sb0.02 half-Heusler alloys",

abstract = "The effects of Nb substitution at the IV metal site on the thermoelectric properties of Ti0.5(ZrHf)0.5-xNbxNi 0.9Pd0.1Sn0.98Sb0.02 half-Heusler alloy compounds were investigated by measuring the electrical resistivity, Hall effect, Seebeck coefficient and thermal conductivity. Changes in its microstructure were characterized using SEM and X-ray diffraction. It was shown that the substitution of Nb for TiNiSn-based alloys led to a significant reduction in the thermal conductivity due to the increase in defects and an enhancement of the electrical conductivity. The best sample reached a ZT of 0.66 at 900 K with an Nb content of x = 0.01.",

author = "Lee, {Ping Jen} and Chao, {Long Sun}",

note = "Funding Information: The work was supported by the National Science Council of Taiwan, Republic of China under contract no. NSC-98-2221-E-006-230. One of authors (P. J. Lee) would like to acknowledge Dr. Chou of the Energy and Environment Research Laboratories, ITRI for the assistance in measurement Seebeck coefficient.",

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doi = "10.1016/j.jallcom.2010.05.086",

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TY - JOUR

T1 - High-temperature thermoelectric properties of Ti0.5(ZrHf) 0.5-xNbxNi0.9Pd0.1Sn 0.98Sb0.02 half-Heusler alloys

AU - Lee, Ping Jen

AU - Chao, Long Sun

N1 - Funding Information: The work was supported by the National Science Council of Taiwan, Republic of China under contract no. NSC-98-2221-E-006-230. One of authors (P. J. Lee) would like to acknowledge Dr. Chou of the Energy and Environment Research Laboratories, ITRI for the assistance in measurement Seebeck coefficient.

PY - 2010/8/31

Y1 - 2010/8/31

N2 - The effects of Nb substitution at the IV metal site on the thermoelectric properties of Ti0.5(ZrHf)0.5-xNbxNi 0.9Pd0.1Sn0.98Sb0.02 half-Heusler alloy compounds were investigated by measuring the electrical resistivity, Hall effect, Seebeck coefficient and thermal conductivity. Changes in its microstructure were characterized using SEM and X-ray diffraction. It was shown that the substitution of Nb for TiNiSn-based alloys led to a significant reduction in the thermal conductivity due to the increase in defects and an enhancement of the electrical conductivity. The best sample reached a ZT of 0.66 at 900 K with an Nb content of x = 0.01.

AB - The effects of Nb substitution at the IV metal site on the thermoelectric properties of Ti0.5(ZrHf)0.5-xNbxNi 0.9Pd0.1Sn0.98Sb0.02 half-Heusler alloy compounds were investigated by measuring the electrical resistivity, Hall effect, Seebeck coefficient and thermal conductivity. Changes in its microstructure were characterized using SEM and X-ray diffraction. It was shown that the substitution of Nb for TiNiSn-based alloys led to a significant reduction in the thermal conductivity due to the increase in defects and an enhancement of the electrical conductivity. The best sample reached a ZT of 0.66 at 900 K with an Nb content of x = 0.01.

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U2 - 10.1016/j.jallcom.2010.05.086

DO - 10.1016/j.jallcom.2010.05.086

M3 - Article

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VL - 504

SP - 192

EP - 196

JO - Journal of the Less-Common Metals

JF - Journal of the Less-Common Metals

SN - 0925-8388

IS - 1

ER -

High-temperature thermoelectric properties of Ti0.5(ZrHf) 0.5-xNbxNi0.9Pd0.1Sn 0.98Sb0.02 half-Heusler alloys

摘要

All Science Journal Classification (ASJC) codes

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指紋

引用此

High-temperature thermoelectric properties of Ti_0.5(ZrHf) _0.5-xNb_xNi_0.9Pd_0.1Sn _0.98Sb_0.02 half-Heusler alloys