Effect of mechanical milling on thermoelectric properties of half-Heusler ZrNiSn0.98Sb0.02 intermetallic compound

Aluminum antimonide is a semiconductor of the Group III-V order. With a wide indirect band gap, AlSb is one of the least discovered of this family of semiconductors. Bulk synthesis of AlSb has been reported on numerous occasions, but obtaining a single phase has always proven to be extremely difficult. This work reports a simple method for the synthesis of single-phase AlSb. Subsequently, consolidation was done into a near single-phase highly dense semiconductor in a form usable for thermoelectric applications. Further, the thermoelectric properties of this system are accounted for the first time. In addition, the mechanical properties of the intermetallic compound are briefly discussed for a possibility of further use.

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Synthesis of Rare Earth Filled Skutterudite Composite with Dispersed Oxide Particles by Mechanical Milling and SPS Techniques and Investigation of its Thermoelectric Properties

Journal of the Japan Society of Powder and Powder Metallurgy ◽

10.2497/jjspm.54.375 ◽

2007 ◽

Vol 54 (5) ◽

pp. 375-380 ◽

Cited By ~ 5

Author(s):

Shigeru Katsuyama ◽

Hiroshi Okada

Keyword(s):

Rare Earth ◽

Thermoelectric Properties ◽

Mechanical Milling ◽

Filled Skutterudite ◽

Oxide Particles

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Electronic structure and thermoelectric properties of narrow-band-gap intermetallic compound Al2Fe3Si3

Journal of Thermal Analysis and Calorimetry ◽

10.1007/s10973-017-6621-9 ◽

2017 ◽

Vol 131 (1) ◽

pp. 281-287 ◽

Cited By ~ 13

Author(s):

Y. Takagiwa ◽

Y. Isoda ◽

M. Goto ◽

Y. Shinohara

Keyword(s):

Electronic Structure ◽

Intermetallic Compound ◽

Band Gap ◽

Thermoelectric Properties ◽

Narrow Band

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Effects of Mechanical Milling with Ag Powder on Thermoelectric Properties of NaxCo2O4 Polycrystal Synthesized through Citric Acid Complex Process

Journal of the Japan Society of Powder and Powder Metallurgy ◽

10.2497/jjspm.55.90 ◽

2007 ◽

Vol 55 (2) ◽

pp. 90-95 ◽

Cited By ~ 2

Author(s):

Mikio Ito ◽

Junji Sumiyoshi

Keyword(s):

Citric Acid ◽

Thermoelectric Properties ◽

Mechanical Milling ◽

Acid Complex ◽

Complex Process

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Properties of New TiC/TiB2/Fe-Al Cermet Alloy

Materials Science Forum ◽

10.4028/www.scientific.net/msf.638-642.2138 ◽

2010 ◽

Vol 638-642 ◽

pp. 2138-2141 ◽

Cited By ~ 2

Author(s):

Hiroyuki Nakayama ◽

Shuji Tada ◽

Masashi Mikami ◽

Kimihiro Ozaki ◽

Keizo Kobayashi

Keyword(s):

Thermal Conductivity ◽

Intermetallic Compound ◽

Mechanical Milling ◽

Volume Fraction ◽

Pulsed Current ◽

Sintered Compact ◽

High Relative Density ◽

Sintering Method ◽

Sintered Materials ◽

Cermet Alloy

Effect of TiB2 substitution on thermal conductivity and hardness in TiC / Fe-Al cermets was investigated. The (70-x)TiC / xTiB2 / 26Fe-4Al mass % cermets were fabricated by mechanical milling and subsequent pulsed current sintering method. The high relative density compacts was formed by sintering at 1423 K under 25 MPa for 60 s. The sintered materials were mainly composed of TiC, TiB2 and Fe-Al intermetallic compound. In addition, small amounts of Fe2B surrounding TiB2 were formed. The thermal conductivity of the sintered compact lineally increased with increasing TiB2 volume fraction. However, the hardness of the sintered compacts of x = 20 – 40 were higher than that of x = 0. Therefore, the substitution of TiC to TiB2 in the TiC / Fe-Al based cermet is effective to improve the thermal conductivity without the degradation of hardness.

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