In-situ reactive synthesis of dense nanostructured β-FeSi2 by Spark Plasma Sintering

被引：6

作者：

Abbassi, Linda ^{[1
,2
]}

Mesguich, David ^{[2
]}

Coulomb, Loic ^{[1
]}

Chevallier, Geoffroy ^{[2
,3
]}

Aries, Romain ^{[2
]}

Estournes, Claude ^{[2
]}

Flahaut, Emmanuel ^{[2
]}

Viennois, Romain ^{[1
]}

Beaudhuin, Mickael ^{[1
]}

机构：

[1] Univ Montpellier, ICGM, CNRS, ENSCM, Montpellier, France

[2] Univ Toulouse 3 Paul Sabatier, UMR CNRS UPS INP 5085, Univ Toulouse, CIRIMAT,CNRS,INPT,UPS, Bat CIRIMAT,118 Route Narbonne, F-31062 Toulouse 9, France

[3] Univ Toulouse 3 Paul Sabatier, Plateforme Natl CNRS Frittage Flash, PNF2, MHT, 118 Route Narbonne, F-31062 Toulouse 9, France

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2022年 / 902卷

关键词：

Intermetallics; Nanostructured materials; Semiconductors; Thermoelectric materials; Sintering; Mechanical properties; THERMOELECTRIC PROPERTIES; IRON DISILICIDE; SINGLE-CRYSTALS; ELECTRICAL-PROPERTIES; ELECTRONIC-STRUCTURE; P-TYPE; FESI2;

D O I：

10.1016/j.jallcom.2022.163683

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

beta-FeSi2 is a promising material for thermoelectric application, especially if it can be nanostructured to decrease the lattice contribution to the thermal conductivity. It can be even more interesting if the entire chain of processes implemented to obtain it is not too time and energy consuming. In this paper we report a simple route to synthesize nano-beta-FeSi2 by combining mechanical milling and reactive spark plasma sintering of Fe-Si alloys. A map of the pressure-temperature conditions using a spark plasma sintering setup was performed and shows that it is possible to obtain nano-beta-FeSi2 pellets with a density above 90% using dwell times as short as 5 min. The impact, of both, the density and nanostructuring on the hardness of the beta FeSi2 pellets obtained by this process are presented as well as the impact of the thermoelectric properties of the materials. (C) 2022 Elsevier B.V. All rights reserved.

引用

页数：7

共 57 条

[1]

[Anonymous], 2018, Thermoelectrics Handbook, DOI DOI 10.1201/9781420038903

[2] Effects of sintering temperature on microstructure and mechanical properties of spark plasma sintered titanium [J].

Asl, Mehdi Shahedi ;

Namini, Abbas Sabahi ;

Motallebzadeh, Amir ;

Azadbeh, Maziyar .

MATERIALS CHEMISTRY AND PHYSICS, 2018, 203 :266-273

[3]

Behr G, 1997, PHYS STATUS SOLIDI A, V160, P549, DOI 10.1002/1521-396X(199704)160:2<549::AID-PSSA549>3.0.CO

[4]

2-8

[5] Thermodynamics, kinetics and electronic properties of point defects in β-FeSi2 [J].

Chai, Jun ;

Ming, Chen ;

Du, Xiaolong ;

Qiu, Pengfei ;

Sun, Yi-Yang ;

Chen, Lidong .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2019, 21 (20) :10497-10504

[6] ELECTRONIC-STRUCTURE OF BETA-FESI2 [J].

CHRISTENSEN, NE .

PHYSICAL REVIEW B, 1990, 42 (11) :7148-7153

[7] Critical reassessment of the Fe-Si system [J].

Cui, Senlin ;

Jung, In-Ho .

CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY, 2017, 56 :108-125

[8] CRYSTAL STRUCTURE OF IRON DISILICIDE, FESI2BETA [J].

DUSAUSOY, Y ;

PROTAS, J ;

WANDJI, R ;

ROQUES, B .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL CRYSTALLOGRAPHY AND CRYSTAL CHEMISTRY, 1971, B 27 (JUN15) :1209-&

[9] ELECTRONIC-STRUCTURE OF BURIED ALPHA-FESI2 AND BETA-FESI2 LAYERS - SOFT-X-RAY EMISSION AND ABSORPTION STUDIES COMPARED TO BAND-STRUCTURE CALCULATIONS [J].

EISEBITT, S ;

RUBENSSON, JE ;

NICODEMUS, M ;

BOSKE, T ;

BLUGEL, S ;

EBERHARDT, W ;

RADERMACHER, K ;

MANTL, S ;

BIHLMAYER, G .

PHYSICAL REVIEW B, 1994, 50 (24) :18330-18340

[10]

Estournes C, 2006, TECHNIQUES INGENIEUR, V33, P56

← 1 2 3 4 5 6 →