Published July 2008
| Version v1
Journal article
MULTIFUNCTIONAL HETERO-MODULE COMPOSITE IN B4C-BN-TIC-SiC-C SYSTEM
Creators
- 1. Georgian Technical University, Tbilisi (Georgia)
Description
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, Y2O3 additives. Carbon fiber (S-242, Lav=370 μm, d=13 μm) stipulated, also, for the maintenance of carbide stoichiometric composition. Sintering was done in vacuum with hot pressure (25 MPa) in the interval of 1800-1900℃ with dwell time 5-7 minutes. Structural analysis proved the homogeneous structure of the composite. The properties satisfy ISO standards: HV=23 GPa, compressive strength 2300 MPa, HRA=94, bending strength - 500-600 MPa. (author)
Additional details
Publishing Information
- Journal Title
- Ceramics. Journal of the Georgian Ceramists' Association
- Journal Volume
- 19
- Journal Issue
- 2
- Journal Page Range
- p. 3-8
- ISSN
- 1512-0325
INIS
- Country of Publication
- Georgia
- Country of Input or Organization
- Georgia
- INIS RN
- 48066173
- Subject category
- S36: MATERIALS SCIENCE; S42: ENGINEERING;
- Descriptors DEI
- ADDITIVES; AIR; BENDING; BORON CARBIDES; BORON NITRIDES; CARBON; CARBON FIBERS; COMPRESSION STRENGTH; CUTTING; FLEXURAL STRENGTH; MAGNESIUM OXIDES; MAXIMUM PERMISSIBLE ACTIVITY; MICROSTRUCTURE; MIXTURES; OPTIMIZATION; PRESSURE RANGE GIGA PA; PRESSURE RANGE MEGA PA; SILICON; SILICON CARBIDES; SINTERING; STOICHIOMETRY; TITANIUM CARBIDES; VISCOSITY; YTTRIUM OXIDES
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; BORON COMPOUNDS; CARBIDES; CARBON COMPOUNDS; CHALCOGENIDES; DEFORMATION; DISPERSIONS; ELEMENTS; FABRICATION; FIBERS; FLUIDS; GASES; MACHINING; MAGNESIUM COMPOUNDS; MECHANICAL PROPERTIES; NITRIDES; NITROGEN COMPOUNDS; NONMETALS; OXIDES; OXYGEN COMPOUNDS; PNICTIDES; PRESSURE RANGE; SAFETY STANDARDS; SEMIMETALS; SILICON COMPOUNDS; STANDARDS; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS
Optional Information
- Notes
- 9 refs., 3 figs., 2 tabs.