Abstract
The effect of adding nanocrystalline ZrO2 and submicron TiC to ultrafine Al2O3 on mechanical properties and the microstructure of the composites developed by hot pressing was investigated. It was shown that by means of hot pressing in an argon atmosphere at a sintering temperature of 1500 degrees one can obtain the composites Al2O3-ZrO2-TiC with a fine structure and minimal porosity. It has been shown that in material a multi-scale hierarchical structure is formed, which possesses high physical and mechanical properties: the hardness and fracture toughness was 21.5?GPa and 5.2 MPa×m1/2 respectively, the modulus of elasticity was 500?GPa and bending strength was 390?MPa. Tests on composites' cutting properties were carried out on interrupted cutting of hardened steel. All samples had wear of the cutting edge in the form of chips of the grain rear working surface of the tool, but the cutting tool which was made by Al2O3-10% ZrO2-10% TiC had a minimum width of wear.
| Original language | English |
|---|---|
| Title of host publication | Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures |
| Editors | Victor E. Panin, Sergey G. Psakhie, Vasily M. Fomin |
| Publisher | American Institute of Physics Inc. |
| Volume | 1683 |
| ISBN (Electronic) | 9780735413306 |
| DOIs | |
| Publication status | Published - 27 Oct 2015 |
| Event | International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2015 - Tomsk, Russian Federation Duration: 21 Sep 2015 → 25 Sep 2015 |
Conference
| Conference | International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2015 |
|---|---|
| Country | Russian Federation |
| City | Tomsk |
| Period | 21.9.15 → 25.9.15 |
Fingerprint
Keywords
- alumina
- hot pressing
- microstructure
- nanocomposite
- TiC
- toughness
- zirconia
ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
The structure and properties of composites Al2O3-ZrO2-TiC for use in extreme conditions. / Grigoriev, M. V.; Kotelnikov, N. L.; Buyakova, S. P.; Kulkov, S. N.
Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures. ed. / Victor E. Panin; Sergey G. Psakhie; Vasily M. Fomin. Vol. 1683 American Institute of Physics Inc., 2015. 020061.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - The structure and properties of composites Al2O3-ZrO2-TiC for use in extreme conditions
AU - Grigoriev, M. V.
AU - Kotelnikov, N. L.
AU - Buyakova, S. P.
AU - Kulkov, S. N.
PY - 2015/10/27
Y1 - 2015/10/27
N2 - The effect of adding nanocrystalline ZrO2 and submicron TiC to ultrafine Al2O3 on mechanical properties and the microstructure of the composites developed by hot pressing was investigated. It was shown that by means of hot pressing in an argon atmosphere at a sintering temperature of 1500 degrees one can obtain the composites Al2O3-ZrO2-TiC with a fine structure and minimal porosity. It has been shown that in material a multi-scale hierarchical structure is formed, which possesses high physical and mechanical properties: the hardness and fracture toughness was 21.5?GPa and 5.2 MPa×m1/2 respectively, the modulus of elasticity was 500?GPa and bending strength was 390?MPa. Tests on composites' cutting properties were carried out on interrupted cutting of hardened steel. All samples had wear of the cutting edge in the form of chips of the grain rear working surface of the tool, but the cutting tool which was made by Al2O3-10% ZrO2-10% TiC had a minimum width of wear.
AB - The effect of adding nanocrystalline ZrO2 and submicron TiC to ultrafine Al2O3 on mechanical properties and the microstructure of the composites developed by hot pressing was investigated. It was shown that by means of hot pressing in an argon atmosphere at a sintering temperature of 1500 degrees one can obtain the composites Al2O3-ZrO2-TiC with a fine structure and minimal porosity. It has been shown that in material a multi-scale hierarchical structure is formed, which possesses high physical and mechanical properties: the hardness and fracture toughness was 21.5?GPa and 5.2 MPa×m1/2 respectively, the modulus of elasticity was 500?GPa and bending strength was 390?MPa. Tests on composites' cutting properties were carried out on interrupted cutting of hardened steel. All samples had wear of the cutting edge in the form of chips of the grain rear working surface of the tool, but the cutting tool which was made by Al2O3-10% ZrO2-10% TiC had a minimum width of wear.
KW - alumina
KW - hot pressing
KW - microstructure
KW - nanocomposite
KW - TiC
KW - toughness
KW - zirconia
UR - http://www.scopus.com/inward/record.url?scp=84984577309&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84984577309&partnerID=8YFLogxK
U2 - 10.1063/1.4932751
DO - 10.1063/1.4932751
M3 - Conference contribution
AN - SCOPUS:84984577309
VL - 1683
BT - Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures
A2 - Panin, Victor E.
A2 - Psakhie, Sergey G.
A2 - Fomin, Vasily M.
PB - American Institute of Physics Inc.
ER -