Abstract
The method of uniaxial dry compacting homogeneously dense powdered articles of complex shape excluding macroscopic defects has been developed. It is based on the effect of self-alignment of uniform density in a volume of green compact by different directed forces of die-wall friction. The equation defining density differential throughout the height of a green compact depending on its geometrical parameters and requirements of movement of die parts was proposed. The method allows preserving nanostructured state in the green compact because the shear component of plastic deformation dominates in the whole process of powder body compacting and so to achieve nanoscale grains at ceramics sintering. Also the method permits to avoid contamination and density gradients in the articles of complex shape. It was applied to produce nanostructured ceramic articles like impellers, plates with longitudinal holes. The die constructions for manufacturing various ceramic articles (complex and conic gear wheels, coils, bushes, segments of spheres and rings, etc.) were developed. This method is intended for production of structural and functional ceramic articles in electronics, telecommunications, aerospace, mechanical, chemical engineering, etc.
| Original language | English |
|---|---|
| Title of host publication | Proceedings - KORUS 2003: 7th Korea-Russia International Symposium on Science and Technology |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 147-151 |
| Number of pages | 5 |
| Volume | 1 |
| ISBN (Print) | 8978686176, 9788978686174 |
| Publication status | Published - 2003 |
| Event | 7th Korea-Russia International Symposium on Science and Technology, KORUS 2003 - Ulsan, Korea, Republic of Duration: 28 Jun 2003 → 6 Jul 2003 |
Other
| Other | 7th Korea-Russia International Symposium on Science and Technology, KORUS 2003 |
|---|---|
| Country | Korea, Republic of |
| City | Ulsan |
| Period | 28.6.03 → 6.7.03 |
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Keywords
- Ceramics
- Contamination
- Differential equations
- Friction
- Impellers
- Manufacturing
- Plastics
- Powders
- Pressing
- Shape
ASJC Scopus subject areas
- Building and Construction
- Pollution
- Biotechnology
- Social Sciences (miscellaneous)
- Medicine (miscellaneous)
- Education
Cite this
Uniaxial dry pressing homogeneously dense powdered ceramic articles. / Khasanov, O.; Dvilis, E.; Sokolov, V.; Pokholkov, Y.
Proceedings - KORUS 2003: 7th Korea-Russia International Symposium on Science and Technology. Vol. 1 Institute of Electrical and Electronics Engineers Inc., 2003. p. 147-151 1222420.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Uniaxial dry pressing homogeneously dense powdered ceramic articles
AU - Khasanov, O.
AU - Dvilis, E.
AU - Sokolov, V.
AU - Pokholkov, Y.
PY - 2003
Y1 - 2003
N2 - The method of uniaxial dry compacting homogeneously dense powdered articles of complex shape excluding macroscopic defects has been developed. It is based on the effect of self-alignment of uniform density in a volume of green compact by different directed forces of die-wall friction. The equation defining density differential throughout the height of a green compact depending on its geometrical parameters and requirements of movement of die parts was proposed. The method allows preserving nanostructured state in the green compact because the shear component of plastic deformation dominates in the whole process of powder body compacting and so to achieve nanoscale grains at ceramics sintering. Also the method permits to avoid contamination and density gradients in the articles of complex shape. It was applied to produce nanostructured ceramic articles like impellers, plates with longitudinal holes. The die constructions for manufacturing various ceramic articles (complex and conic gear wheels, coils, bushes, segments of spheres and rings, etc.) were developed. This method is intended for production of structural and functional ceramic articles in electronics, telecommunications, aerospace, mechanical, chemical engineering, etc.
AB - The method of uniaxial dry compacting homogeneously dense powdered articles of complex shape excluding macroscopic defects has been developed. It is based on the effect of self-alignment of uniform density in a volume of green compact by different directed forces of die-wall friction. The equation defining density differential throughout the height of a green compact depending on its geometrical parameters and requirements of movement of die parts was proposed. The method allows preserving nanostructured state in the green compact because the shear component of plastic deformation dominates in the whole process of powder body compacting and so to achieve nanoscale grains at ceramics sintering. Also the method permits to avoid contamination and density gradients in the articles of complex shape. It was applied to produce nanostructured ceramic articles like impellers, plates with longitudinal holes. The die constructions for manufacturing various ceramic articles (complex and conic gear wheels, coils, bushes, segments of spheres and rings, etc.) were developed. This method is intended for production of structural and functional ceramic articles in electronics, telecommunications, aerospace, mechanical, chemical engineering, etc.
KW - Ceramics
KW - Contamination
KW - Differential equations
KW - Friction
KW - Impellers
KW - Manufacturing
KW - Plastics
KW - Powders
KW - Pressing
KW - Shape
UR - http://www.scopus.com/inward/record.url?scp=84944327854&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84944327854&partnerID=8YFLogxK
M3 - Conference contribution
SN - 8978686176
SN - 9788978686174
VL - 1
SP - 147
EP - 151
BT - Proceedings - KORUS 2003: 7th Korea-Russia International Symposium on Science and Technology
PB - Institute of Electrical and Electronics Engineers Inc.
ER -