Glass formation in the Nb-Si binary system

K. Georgarakis; Y. Li; M. Aljerf; D. Dudina; A. LeMoulec; A. R. Yavari; G. Vaughan; A. Inoue

doi:10.1016/j.jallcom.2010.03.034

Glass formation in the Nb-Si binary system

K. Georgarakis, Y. Li, M. Aljerf, D. Dudina, A. LeMoulec, A. R. Yavari, G. Vaughan, A. Inoue

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

3 Citations (Scopus)

Abstract

Nb_81.3Si_18.7 ribbons were prepared by rapid quenching of the liquid on a rotating copper wheel using various values of rotating speed. It was found that the melt spun ribbons consisted of an amorphous matrix; however the critical cooling rate for the formation of fully amorphous ribbons was achieved at rather high values of wheel speed. Crystallization occurs upon annealing above 971 K. The Vickers hardness of the amorphous ribbons was found to be 915 HV, an unusually high value for a binary alloy. The atomic structure of the amorphous Nb-Si alloy was studied using real space pair distribution (PDF)/radial distribution functions (RDF) derived from high precision X-ray diffraction data acquired with high-energy, monochromatic synchrotron light in transmission.

Original language	English
Journal	Journal of Alloys and Compounds
Volume	504
Issue number	SUPPL. 1
DOIs	https://doi.org/10.1016/j.jallcom.2010.03.034
Publication status	Published - 2010 Aug 1

Keywords

Amorphous materials
Crystallization
Metallic glasses
Metals and alloys
Rapid quenching
X-ray diffraction

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/j.jallcom.2010.03.034

Cite this

@article{1efab709c7284c769a08ec17c22d0a64,

title = "Glass formation in the Nb-Si binary system",

abstract = "Nb81.3Si18.7 ribbons were prepared by rapid quenching of the liquid on a rotating copper wheel using various values of rotating speed. It was found that the melt spun ribbons consisted of an amorphous matrix; however the critical cooling rate for the formation of fully amorphous ribbons was achieved at rather high values of wheel speed. Crystallization occurs upon annealing above 971 K. The Vickers hardness of the amorphous ribbons was found to be 915 HV, an unusually high value for a binary alloy. The atomic structure of the amorphous Nb-Si alloy was studied using real space pair distribution (PDF)/radial distribution functions (RDF) derived from high precision X-ray diffraction data acquired with high-energy, monochromatic synchrotron light in transmission.",

keywords = "Amorphous materials, Crystallization, Metallic glasses, Metals and alloys, Rapid quenching, X-ray diffraction",

author = "K. Georgarakis and Y. Li and M. Aljerf and D. Dudina and A. LeMoulec and Yavari, {A. R.} and G. Vaughan and A. Inoue",

year = "2010",

month = aug,

day = "1",

doi = "10.1016/j.jallcom.2010.03.034",

language = "English",

volume = "504",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier BV",

number = "SUPPL. 1",

}

TY - JOUR

T1 - Glass formation in the Nb-Si binary system

AU - Georgarakis, K.

AU - Li, Y.

AU - Aljerf, M.

AU - Dudina, D.

AU - LeMoulec, A.

AU - Yavari, A. R.

AU - Vaughan, G.

AU - Inoue, A.

PY - 2010/8/1

Y1 - 2010/8/1

N2 - Nb81.3Si18.7 ribbons were prepared by rapid quenching of the liquid on a rotating copper wheel using various values of rotating speed. It was found that the melt spun ribbons consisted of an amorphous matrix; however the critical cooling rate for the formation of fully amorphous ribbons was achieved at rather high values of wheel speed. Crystallization occurs upon annealing above 971 K. The Vickers hardness of the amorphous ribbons was found to be 915 HV, an unusually high value for a binary alloy. The atomic structure of the amorphous Nb-Si alloy was studied using real space pair distribution (PDF)/radial distribution functions (RDF) derived from high precision X-ray diffraction data acquired with high-energy, monochromatic synchrotron light in transmission.

AB - Nb81.3Si18.7 ribbons were prepared by rapid quenching of the liquid on a rotating copper wheel using various values of rotating speed. It was found that the melt spun ribbons consisted of an amorphous matrix; however the critical cooling rate for the formation of fully amorphous ribbons was achieved at rather high values of wheel speed. Crystallization occurs upon annealing above 971 K. The Vickers hardness of the amorphous ribbons was found to be 915 HV, an unusually high value for a binary alloy. The atomic structure of the amorphous Nb-Si alloy was studied using real space pair distribution (PDF)/radial distribution functions (RDF) derived from high precision X-ray diffraction data acquired with high-energy, monochromatic synchrotron light in transmission.

KW - Amorphous materials

KW - Crystallization

KW - Metallic glasses

KW - Metals and alloys

KW - Rapid quenching

KW - X-ray diffraction

UR - http://www.scopus.com/inward/record.url?scp=77955928101&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77955928101&partnerID=8YFLogxK

U2 - 10.1016/j.jallcom.2010.03.034

DO - 10.1016/j.jallcom.2010.03.034

M3 - Article

AN - SCOPUS:77955928101

SN - 0925-8388

VL - 504

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - SUPPL. 1

ER -

Glass formation in the Nb-Si binary system

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this