Fabrication of Fe1.1Se0.5Te0.5 bulk by a high energy ball milling technique

Jixing Liu; Chengshan Li; Shengnan Zhang; Jianqing Feng; Pingxiang Zhang; Lian Zhou

doi:10.1016/j.ssc.2017.09.006

Fabrication of Fe_1.1Se_0.5Te_0.5 bulk by a high energy ball milling technique

Jixing Liu, Chengshan Li, Shengnan Zhang, Jianqing Feng, Pingxiang Zhang, Lian Zhou

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

6 Scopus citations

Abstract

Fe_1.1Se_0.5Te_0.5 superconducting bulks were successfully synthesized by a high energy ball milling (HEBM) aided sintering technique. Two advantages of this new technique have been revealed compared with traditional solid state sintering method. One is greatly increased the density of sintered bulks. It is because the precursor powders with β-Fe(Se, Te) and δ-Fe(Se, Te) were obtained directly by the HEBM process and without formation of liquid Se (and Te), which could avoid the huge volume expansion. The other is the obvious decrease of sintering temperature and dwell time due to the effective shortened length of diffusion paths. The superconducting critical temperature T_c of 14.2 K in our sample is comparable with those in previous reports, and further optimization of chemical composition is on the way.

Original language	English
Pages (from-to)	39-41
Number of pages	3
Journal	Solid State Communications
Volume	267
DOIs	https://doi.org/10.1016/j.ssc.2017.09.006
State	Published - Nov 2017
Externally published	Yes

Keywords

A. Superconductors
B. High energy ball milling
C. Microstructure

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10.1016/j.ssc.2017.09.006

Cite this

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title = "Fabrication of Fe1.1Se0.5Te0.5 bulk by a high energy ball milling technique",

abstract = "Fe1.1Se0.5Te0.5 superconducting bulks were successfully synthesized by a high energy ball milling (HEBM) aided sintering technique. Two advantages of this new technique have been revealed compared with traditional solid state sintering method. One is greatly increased the density of sintered bulks. It is because the precursor powders with β-Fe(Se, Te) and δ-Fe(Se, Te) were obtained directly by the HEBM process and without formation of liquid Se (and Te), which could avoid the huge volume expansion. The other is the obvious decrease of sintering temperature and dwell time due to the effective shortened length of diffusion paths. The superconducting critical temperature Tc of 14.2 K in our sample is comparable with those in previous reports, and further optimization of chemical composition is on the way.",

keywords = "A. Superconductors, B. High energy ball milling, C. Microstructure",

author = "Jixing Liu and Chengshan Li and Shengnan Zhang and Jianqing Feng and Pingxiang Zhang and Lian Zhou",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd",

year = "2017",

month = nov,

doi = "10.1016/j.ssc.2017.09.006",

language = "英语",

volume = "267",

pages = "39--41",

journal = "Solid State Communications",

issn = "0038-1098",

publisher = "Elsevier Ltd",

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TY - JOUR

T1 - Fabrication of Fe1.1Se0.5Te0.5 bulk by a high energy ball milling technique

AU - Liu, Jixing

AU - Li, Chengshan

AU - Zhang, Shengnan

AU - Feng, Jianqing

AU - Zhang, Pingxiang

AU - Zhou, Lian

PY - 2017/11

Y1 - 2017/11

N2 - Fe1.1Se0.5Te0.5 superconducting bulks were successfully synthesized by a high energy ball milling (HEBM) aided sintering technique. Two advantages of this new technique have been revealed compared with traditional solid state sintering method. One is greatly increased the density of sintered bulks. It is because the precursor powders with β-Fe(Se, Te) and δ-Fe(Se, Te) were obtained directly by the HEBM process and without formation of liquid Se (and Te), which could avoid the huge volume expansion. The other is the obvious decrease of sintering temperature and dwell time due to the effective shortened length of diffusion paths. The superconducting critical temperature Tc of 14.2 K in our sample is comparable with those in previous reports, and further optimization of chemical composition is on the way.

AB - Fe1.1Se0.5Te0.5 superconducting bulks were successfully synthesized by a high energy ball milling (HEBM) aided sintering technique. Two advantages of this new technique have been revealed compared with traditional solid state sintering method. One is greatly increased the density of sintered bulks. It is because the precursor powders with β-Fe(Se, Te) and δ-Fe(Se, Te) were obtained directly by the HEBM process and without formation of liquid Se (and Te), which could avoid the huge volume expansion. The other is the obvious decrease of sintering temperature and dwell time due to the effective shortened length of diffusion paths. The superconducting critical temperature Tc of 14.2 K in our sample is comparable with those in previous reports, and further optimization of chemical composition is on the way.

KW - A. Superconductors

KW - B. High energy ball milling

KW - C. Microstructure

UR - http://www.scopus.com/inward/record.url?scp=85029396115&partnerID=8YFLogxK

U2 - 10.1016/j.ssc.2017.09.006

DO - 10.1016/j.ssc.2017.09.006

M3 - 文章

AN - SCOPUS:85029396115

SN - 0038-1098

VL - 267

SP - 39

EP - 41

JO - Solid State Communications

JF - Solid State Communications

ER -

Fabrication of Fe_1.1Se_0.5Te_0.5 bulk by a high energy ball milling technique

Abstract

Keywords

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