Mechanical properties and fabrication of nanostructured 1.5TiAl-Al 2O 3 composite by pulsed current activated sintering

Won Baek Kim; Hee Ji Wang; Ki Min Roh; Sung Wook Cho; Jae Won Lim; In Jin Shon

doi:10.3365/KJMM.2012.50.4.310

Mechanical properties and fabrication of nanostructured 1.5TiAl-Al ₂O ₃ composite by pulsed current activated sintering

Won Baek Kim
, Hee Ji Wang
, Ki Min Roh
, Sung Wook Cho
, Jae Won Lim
, In Jin Shon^*

^*Corresponding author for this work

Geography Education

Korea Institute of Geoscience, Mining and Materials Resources
Jeonbuk National University

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

10 Scopus citations

Abstract

Nano-powders of 1.5TiAl and A1 ₂O ₃ were synthesized from 1.5TiO ₂ and 3A1 powders by high energy ball milling. Nanocrystalline AI ₂O ₃ reinforced composite was consolidated by pulsed current activated sintering within 2 minutes from mechanochemically synthesized powders of AI ₂O ₃ and 1.5TiAl. The relative density of the composite was 99.5%. The average hardness and fracture toughness values obtained were 1250 kg/mm ² and 10 MPa-m ^1/2, respectively.

Original language	English
Pages (from-to)	310-315
Number of pages	6
Journal	Journal of Korean Institute of Metals and Materials
Volume	50
Issue number	4
DOIs	https://doi.org/10.3365/KJMM.2012.50.4.310
State	Published - 2012.04

Keywords

Compound
Mechanical properties
Nanostructure
Sintering

Quacquarelli Symonds(QS) Subject Topics

Materials Science
Mathematics

Access to Document

10.3365/KJMM.2012.50.4.310

Cite this

@article{6c9b4fdb97334f6ca61c475d11311ce4,

title = "Mechanical properties and fabrication of nanostructured 1.5TiAl-Al 2O 3 composite by pulsed current activated sintering",

abstract = "Nano-powders of 1.5TiAl and A1 2O 3 were synthesized from 1.5TiO 2 and 3A1 powders by high energy ball milling. Nanocrystalline AI 2O 3 reinforced composite was consolidated by pulsed current activated sintering within 2 minutes from mechanochemically synthesized powders of AI 2O 3 and 1.5TiAl. The relative density of the composite was 99.5\%. The average hardness and fracture toughness values obtained were 1250 kg/mm 2 and 10 MPa-m 1/2, respectively.",

keywords = "Compound, Mechanical properties, Nanostructure, Sintering",

author = "Kim, \{Won Baek\} and Wang, \{Hee Ji\} and Roh, \{Ki Min\} and Cho, \{Sung Wook\} and Lim, \{Jae Won\} and Shon, \{In Jin\}",

year = "2012",

month = apr,

doi = "10.3365/KJMM.2012.50.4.310",

language = "English",

volume = "50",

pages = "310--315",

journal = "Journal of Korean Institute of Metals and Materials",

issn = "1738-8228",

number = "4",

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TY - JOUR

T1 - Mechanical properties and fabrication of nanostructured 1.5TiAl-Al 2O 3 composite by pulsed current activated sintering

AU - Kim, Won Baek

AU - Wang, Hee Ji

AU - Roh, Ki Min

AU - Cho, Sung Wook

AU - Lim, Jae Won

AU - Shon, In Jin

PY - 2012/4

Y1 - 2012/4

N2 - Nano-powders of 1.5TiAl and A1 2O 3 were synthesized from 1.5TiO 2 and 3A1 powders by high energy ball milling. Nanocrystalline AI 2O 3 reinforced composite was consolidated by pulsed current activated sintering within 2 minutes from mechanochemically synthesized powders of AI 2O 3 and 1.5TiAl. The relative density of the composite was 99.5%. The average hardness and fracture toughness values obtained were 1250 kg/mm 2 and 10 MPa-m 1/2, respectively.

AB - Nano-powders of 1.5TiAl and A1 2O 3 were synthesized from 1.5TiO 2 and 3A1 powders by high energy ball milling. Nanocrystalline AI 2O 3 reinforced composite was consolidated by pulsed current activated sintering within 2 minutes from mechanochemically synthesized powders of AI 2O 3 and 1.5TiAl. The relative density of the composite was 99.5%. The average hardness and fracture toughness values obtained were 1250 kg/mm 2 and 10 MPa-m 1/2, respectively.

KW - Compound

KW - Mechanical properties

KW - Nanostructure

KW - Sintering

UR - https://www.scopus.com/pages/publications/84861307323

U2 - 10.3365/KJMM.2012.50.4.310

DO - 10.3365/KJMM.2012.50.4.310

M3 - Journal article

AN - SCOPUS:84861307323

SN - 1738-8228

VL - 50

SP - 310

EP - 315

JO - Journal of Korean Institute of Metals and Materials

JF - Journal of Korean Institute of Metals and Materials

IS - 4

ER -