TY - JOUR
T1 - A novel structure for carbon nanotube reinforced alumina composites effects of sintering additives on the mechanical properties
AU - Yamamoto, Go
AU - Omori, Mamoru
AU - Aizawa, Yoichi
AU - Hashida, Toshiyuki
AU - Takagi, Toshiyuki
PY - 2010/4
Y1 - 2010/4
N2 - We report the mechanical properties of multi-walled carbon nanotube (MWCNT)/alumina composites made with a pristine MWCNT and an acid-treated version that have nanoscale defects on their surfaces from an acid treatment. In order to evaluate the effects of sintering additives on the mechanical properties of the composites, we employed three sets of the composites having different sintering additives. Mechanical properties of the MWCNT-based alumina composites were dependent mostly on the type of sintering additives. The composites with magnesia sintering additive, having 0.9 vol.% acid-treated MWCNT, showed a higher bending strength (689.6MPa) and fracture toughness (5.90 MPa·m1/2), than those of the composites with silica sintering additive.
AB - We report the mechanical properties of multi-walled carbon nanotube (MWCNT)/alumina composites made with a pristine MWCNT and an acid-treated version that have nanoscale defects on their surfaces from an acid treatment. In order to evaluate the effects of sintering additives on the mechanical properties of the composites, we employed three sets of the composites having different sintering additives. Mechanical properties of the MWCNT-based alumina composites were dependent mostly on the type of sintering additives. The composites with magnesia sintering additive, having 0.9 vol.% acid-treated MWCNT, showed a higher bending strength (689.6MPa) and fracture toughness (5.90 MPa·m1/2), than those of the composites with silica sintering additive.
KW - Carbon nanotubes
KW - Ceramics
KW - Composite materials
KW - Interface
KW - Mechanical properties
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U2 - 10.1299/kikaia.76.416
DO - 10.1299/kikaia.76.416
M3 - Article
AN - SCOPUS:77954701930
SN - 0387-5008
VL - 76
SP - 416
EP - 418
JO - Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
JF - Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
IS - 764
ER -