Investigation of Structural Properties of Hetero-Module Composite in the B sub(4)C-BN-TiC-SiC-C System

Experiments have been carried out to develop multifunctional composites with improved properties and structure for using in air turbines, ballistic armor, cutting tools and atomic reactors. For optimization of sintering process, microstructure improvement and viscosity increase we used MgO,Y sub(2)O...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2011-01, Vol.18, p.1-4
Main Authors: Zviad, Kovziridze, Jurgen G, Heinrich, Reinhard, Goerke, Hansjoerg, Bornhoeft, Uwe, Kahnert, Natela, Nizharadze, Gulnazi, Tabatadze
Format: Article
Language:English
Subjects:
Atomic reactors
Carbon fibers
Compressive strength
Cutting tools
Intervals
Maintenance
Materials science
Sintering
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Summary:Experiments have been carried out to develop multifunctional composites with improved properties and structure for using in air turbines, ballistic armor, cutting tools and atomic reactors. For optimization of sintering process, microstructure improvement and viscosity increase we used MgO,Y sub(2)O sub(3) additives. Carbon fiber (S-242 L sub(av)=370[mu]m, d=13[mu]m) stipulated, also, the maintenance of carbide stoichiometric composition. Sintering was done in vacuum with hot pressure (25 MPa) in the interval of 1800-1900[degrees]C with dwell time 5-7 minutes. Structural analysis proved the homogeneous structure of the composite. The properties satisfy ISO standards. HV=24 GPa, compressive strength 2300 MPa, HRA=94, bending strength - 500-600 MPa.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/18/20/202015