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Title: Electrophoretic forming of functionally-graded materials

Abstract

Electrophoretic deposition (EPD) is a colloidal forming process where electrically charged particles are deposited onto an oppositely-charged electrode from an electrostatically stabilized suspension by the application of a dc electric field. It is a cheap and facile technique to fabricate complicated ceramic shapes. EPD is very effective method to synthesize ceramic/ceramic and metal/ceramic composites, eg.; dispersed, laminar, fibre reinforced, and functionally graded materials (FGM) etc. By EPD it is possible to synthesize step FGMs and continuous profile FGMs. The compositional profile of the FGM can be controlled by deposition current density, second component flow rate, suspension concentration etc. Step and continuous profile Al{sub 2}O{sub 3}/YSZ and continuous profile Al{sub 2}O{sub 3}/MoSi{sub 2}, Al{sub 2}O{sub 3}/Ni and YSZ/Ni fabrication is reported herein. The microstructures of the FGMs produced were characterized by optical/electron microscopy and micro-indentation was used to quantify the Vicker`s hardness and fracture toughness variation across The FGM sections.

Authors:
; ;  [1]
  1. McMaster Univ., Hamilton, Ontario (Canada)
Publication Date:
OSTI Identifier:
567852
Report Number(s):
CONF-9604124-
TRN: 98:000175-0002
Resource Type:
Conference
Resource Relation:
Conference: 98. annual meeting of the American Ceramic Society, Indianapolis, IN (United States), 14-17 Apr 1996; Other Information: PBD: 1997; Related Information: Is Part Of Ceramic transactions: Functionally graded materials - manufacture, properties, and applications. Volume 76; Ghosh, A.; Miyamoto, Yoshinari; Reimanis, I.; Lannutti, J.J. [eds.]; PB: 200 p.
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CURRENT DENSITY; ELECTRON MICROSCOPY; FABRICATION; FLOW RATE; HARDNESS; DEPOSITION; ALUMINIUM OXIDES; MOLYBDENUM SILICIDES; ELECTRIC FIELDS; COMPOSITE MATERIALS

Citation Formats

Sarkar, P, Datta, S, and Nicholson, P S. Electrophoretic forming of functionally-graded materials. United States: N. p., 1997. Web.
Sarkar, P, Datta, S, & Nicholson, P S. Electrophoretic forming of functionally-graded materials. United States.
Sarkar, P, Datta, S, and Nicholson, P S. Wed . "Electrophoretic forming of functionally-graded materials". United States.
@article{osti_567852,
title = {Electrophoretic forming of functionally-graded materials},
author = {Sarkar, P and Datta, S and Nicholson, P S},
abstractNote = {Electrophoretic deposition (EPD) is a colloidal forming process where electrically charged particles are deposited onto an oppositely-charged electrode from an electrostatically stabilized suspension by the application of a dc electric field. It is a cheap and facile technique to fabricate complicated ceramic shapes. EPD is very effective method to synthesize ceramic/ceramic and metal/ceramic composites, eg.; dispersed, laminar, fibre reinforced, and functionally graded materials (FGM) etc. By EPD it is possible to synthesize step FGMs and continuous profile FGMs. The compositional profile of the FGM can be controlled by deposition current density, second component flow rate, suspension concentration etc. Step and continuous profile Al{sub 2}O{sub 3}/YSZ and continuous profile Al{sub 2}O{sub 3}/MoSi{sub 2}, Al{sub 2}O{sub 3}/Ni and YSZ/Ni fabrication is reported herein. The microstructures of the FGMs produced were characterized by optical/electron microscopy and micro-indentation was used to quantify the Vicker`s hardness and fracture toughness variation across The FGM sections.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1997},
month = {12}
}

Conference:
Other availability
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