The effect of dopant additions on the microstructure of boron fibers before and after reaction to MgB2

James V. Marzik; Raymond J. Suplinskas; William J. Croft; Warren J. Moberlychan; John D. Defouw; David C. Dunand

The effect of dopant additions on the microstructure of boron fibers before and after reaction to MgB₂

James V. Marzik^*, Raymond J. Suplinskas, William J. Croft, Warren J. Moberlychan, John D. Defouw, David C. Dunand

^*Corresponding author for this work

Materials Science and Engineering

Research output: Contribution to journal › Conference article › peer-review

4 Scopus citations

Abstract

Boron fibers made by a commercial chemical vapor deposition (CVD) process have been used as precursors for the formation of magnesium diboride (MgB ₂) superconducting wires. Prior to a reaction with magnesium, the addition of dopants such as carbon and titanium to the boron fiber has been shown to enhance the superconducting properties of MgB₂. These dopants also influence the kinetics of the reaction with magnesium. In this study, the effect of carbon dopant additions on the micro structure of boron fibers was investigated using powder x-ray diffraction, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Additionally, bundles of boron fibers were pressure infiltrated with molten magnesium and reacted at elevated temperatures. The microstructure and microchemistry of the fiber-metal interfaces were investigated by TEM and energy dispersive x-ray analysis (EDS).

Original language	English (US)
Article number	FF6.2
Pages (from-to)	239-244
Number of pages	6
Journal	Materials Research Society Symposium Proceedings
Volume	848
State	Published - Dec 19 2005
Event	2004 Materials Research Society Fall Meeting - Boston, MA, United States Duration: Nov 29 2004 → Dec 2 2004

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Cite this

@article{c950ee1460704f80a9bd93166119c7c1,

title = "The effect of dopant additions on the microstructure of boron fibers before and after reaction to MgB2",

abstract = "Boron fibers made by a commercial chemical vapor deposition (CVD) process have been used as precursors for the formation of magnesium diboride (MgB 2) superconducting wires. Prior to a reaction with magnesium, the addition of dopants such as carbon and titanium to the boron fiber has been shown to enhance the superconducting properties of MgB2. These dopants also influence the kinetics of the reaction with magnesium. In this study, the effect of carbon dopant additions on the micro structure of boron fibers was investigated using powder x-ray diffraction, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Additionally, bundles of boron fibers were pressure infiltrated with molten magnesium and reacted at elevated temperatures. The microstructure and microchemistry of the fiber-metal interfaces were investigated by TEM and energy dispersive x-ray analysis (EDS).",

author = "Marzik, {James V.} and Suplinskas, {Raymond J.} and Croft, {William J.} and Moberlychan, {Warren J.} and Defouw, {John D.} and Dunand, {David C.}",

year = "2005",

month = dec,

day = "19",

language = "English (US)",

volume = "848",

pages = "239--244",

journal = "Materials Research Society Symposium Proceedings",

issn = "0272-9172",

publisher = "Materials Research Society",

note = "2004 Materials Research Society Fall Meeting ; Conference date: 29-11-2004 Through 02-12-2004",

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TY - JOUR

T1 - The effect of dopant additions on the microstructure of boron fibers before and after reaction to MgB2

AU - Marzik, James V.

AU - Suplinskas, Raymond J.

AU - Croft, William J.

AU - Moberlychan, Warren J.

AU - Defouw, John D.

AU - Dunand, David C.

PY - 2005/12/19

Y1 - 2005/12/19

N2 - Boron fibers made by a commercial chemical vapor deposition (CVD) process have been used as precursors for the formation of magnesium diboride (MgB 2) superconducting wires. Prior to a reaction with magnesium, the addition of dopants such as carbon and titanium to the boron fiber has been shown to enhance the superconducting properties of MgB2. These dopants also influence the kinetics of the reaction with magnesium. In this study, the effect of carbon dopant additions on the micro structure of boron fibers was investigated using powder x-ray diffraction, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Additionally, bundles of boron fibers were pressure infiltrated with molten magnesium and reacted at elevated temperatures. The microstructure and microchemistry of the fiber-metal interfaces were investigated by TEM and energy dispersive x-ray analysis (EDS).

AB - Boron fibers made by a commercial chemical vapor deposition (CVD) process have been used as precursors for the formation of magnesium diboride (MgB 2) superconducting wires. Prior to a reaction with magnesium, the addition of dopants such as carbon and titanium to the boron fiber has been shown to enhance the superconducting properties of MgB2. These dopants also influence the kinetics of the reaction with magnesium. In this study, the effect of carbon dopant additions on the micro structure of boron fibers was investigated using powder x-ray diffraction, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Additionally, bundles of boron fibers were pressure infiltrated with molten magnesium and reacted at elevated temperatures. The microstructure and microchemistry of the fiber-metal interfaces were investigated by TEM and energy dispersive x-ray analysis (EDS).

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M3 - Conference article

AN - SCOPUS:28844507244

SN - 0272-9172

VL - 848

SP - 239

EP - 244

JO - Materials Research Society Symposium Proceedings

JF - Materials Research Society Symposium Proceedings

M1 - FF6.2

T2 - 2004 Materials Research Society Fall Meeting

Y2 - 29 November 2004 through 2 December 2004

ER -

The effect of dopant additions on the microstructure of boron fibers before and after reaction to MgB₂

Abstract

ASJC Scopus subject areas

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