Ghent University Academic Bibliography

Advanced

Structural and mechanical properties of particulate, whisker and unidirectional Bi-2223 Ag composites

Els Bruneel UGent, Takeo Oku, Joris Degrieck UGent, Isabel Van Driessche UGent and Serge Hoste UGent (2002) Key Engineering Materials. 206(2). p.637-640
abstract
In order to obtain high Tc superconducting materials with improved mechanical properties, Bi1,5Pb0,5Sr2Ca2Cu3Ox / Ag-composites with 3 different filler morphologies were successfully synthesised. It is shown that Ag-addition improves Bi-2223 grain growth and reduces sample-porosity. An alignment of the ceramic phase along the surface of the Ag was observed and the results of TEM, SEM, DTA and EDX mapping are discussed, conclusions concerning the alignation-mechanisms based upon these observations are compared with popular models described in literature. Composites exhibit increased ductility and isostrain conditions are met, Little effect on the mechanical strength is observed but the mismatch in thermal expansion coefficient induces a residual stress field at the filler matrix interface and allows toughening mechanisms to appear, resulting in a clear post-peak behaviour. SEM pictures of whisker debonding, crack bridging and whisker pullout, all demonstrating a suitable filler-matrix interface, are included. The role of the filler morphology and the sequence of the processing steps on the toughening efficiency will be discussed.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (proceedingsPaper)
publication status
published
subject
keyword
composite, SILVER, mechanical properties, Ag, Bi-high temperature superconductor, alignation
journal title
Key Engineering Materials
Key Eng. Mat.
volume
206
issue
2
issue title
Euro Ceramics VII, pt 1-3
pages
637 - 640
conference name
7th Conference of the European Ceramic Society
conference location
Brugge, Belgium
conference start
2001-09-09
conference end
2001-09-13
Web of Science type
Proceedings Paper
Web of Science id
000172651400157
JCR category
MATERIALS SCIENCE, CERAMICS
JCR impact factor
0.497 (2002)
JCR rank
10/24 (2002)
JCR quartile
2 (2002)
ISSN
1013-9826
ISBN
9780878498826
DOI
10.4028/www.scientific.net/KEM.206-213.637
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
162260
handle
http://hdl.handle.net/1854/LU-162260
date created
2004-01-14 13:39:00
date last changed
2012-08-10 13:27:34
@article{162260,
  abstract     = {In order to obtain high Tc superconducting materials with improved mechanical properties, Bi1,5Pb0,5Sr2Ca2Cu3Ox / Ag-composites with 3 different filler morphologies were successfully synthesised. It is shown that Ag-addition improves Bi-2223 grain growth and reduces sample-porosity. An alignment of the ceramic phase along the surface of the Ag was observed and the results of TEM, SEM, DTA and EDX mapping are discussed, conclusions concerning the alignation-mechanisms based upon these observations are compared with popular models described in literature.
Composites exhibit increased ductility and isostrain conditions are met, Little effect on the mechanical strength is observed but the mismatch in thermal expansion coefficient induces a residual stress field at the filler matrix interface and allows toughening mechanisms to appear, resulting in a clear post-peak behaviour. SEM pictures of whisker debonding, crack bridging and whisker pullout, all demonstrating a suitable filler-matrix interface, are included. The role of the filler morphology and the sequence of the processing steps on the toughening efficiency will be discussed.},
  author       = {Bruneel, Els and Oku, Takeo and Degrieck, Joris and Van Driessche, Isabel and Hoste, Serge},
  isbn         = {9780878498826},
  issn         = {1013-9826},
  journal      = {Key Engineering Materials},
  keyword      = {composite,SILVER,mechanical properties,Ag,Bi-high temperature superconductor,alignation},
  language     = {eng},
  location     = {Brugge, Belgium},
  number       = {2},
  pages        = {637--640},
  title        = {Structural and mechanical properties of particulate, whisker and unidirectional Bi-2223 Ag composites},
  url          = {http://dx.doi.org/10.4028/www.scientific.net/KEM.206-213.637},
  volume       = {206},
  year         = {2002},
}

Chicago
Bruneel, Els, Takeo Oku, Joris Degrieck, Isabel Van Driessche, and Serge Hoste. 2002. “Structural and Mechanical Properties of Particulate, Whisker and Unidirectional Bi-2223 Ag Composites.” Key Engineering Materials 206 (2): 637–640.
APA
Bruneel, E., Oku, T., Degrieck, J., Van Driessche, I., & Hoste, S. (2002). Structural and mechanical properties of particulate, whisker and unidirectional Bi-2223 Ag composites. Key Engineering Materials, 206(2), 637–640. Presented at the 7th Conference of the European Ceramic Society.
Vancouver
1.
Bruneel E, Oku T, Degrieck J, Van Driessche I, Hoste S. Structural and mechanical properties of particulate, whisker and unidirectional Bi-2223 Ag composites. Key Engineering Materials. 2002;206(2):637–40.
MLA
Bruneel, Els, Takeo Oku, Joris Degrieck, et al. “Structural and Mechanical Properties of Particulate, Whisker and Unidirectional Bi-2223 Ag Composites.” Key Engineering Materials 206.2 (2002): 637–640. Print.