Production of Advanced Materials by Methods of Self-Propagating High-Temperature Synthesis

Synthesis of elemental boron and its refractory compounds by self-propagating high-temperature synthesis with metallothermic reduction.- Self-Propagating High-Temperature Synthesis (SHS).- Methods for Production of Boron.- Thermodynamic Analysis of Synthesis Reactions of Elemental Boron, Boron Carbide and Boron Nitride.- SHS of elemental boron at combustion in the KBF4-Mg and KBF4-Al systems.- Properties of boron produced by SHS.- Structure of boron.- Electron microscopic analysis of synthesized boron.- Thermal analysis of boron powders.- SHS of boron carbide and nitride.- SHS of boron carbide from KBF4.- SHS of boron nitride from KBF4.- Method for production of elemental boron and boron carbide from KBF4.- Gradient composite material B4C-Al2O3-Ni.- 2 Hard titanium and zirconium boride alloys and items manufactured from them by SHS-compaction.- Items produced from borides as an alternative to tungsten-based alloys.- Transition metal borides.- Structure of powders.- Effect of the charge particle size on SHS.- Reagents and manufacturing process for production of hard alloys based on titanium and zirconium borides.- Pattern formation of final combustion product for the Zr-B and Ti-B systems.- Physical-Chemical and mechanical properties of hard alloys based on titanium and zirconium borides.- Bending strength and ultimate compression strength.- Hardness.- Thermal stability.- Heat resistance.- Corrosion resistance.- Electroconductivity.- Thermal conductivity.- Temperature dependence of STIM-4 and TiB thermal expansion coefficients.- Laboratory and factory tests for wear-resistance of hard alloys.- Production and analysis of TiB2-based hard alloys.- Choice of particle size for the metal binder reagent.- Analysis of final products.- Physical-mechanical properties of TiB2-Ti and TiB2-St45 hard alloys.- Bending and ultimate compression strength.- Hardness.- Wear resistance.- Thermal stability.- Heat resistance.- Temperature dependence of the thermal expansion coefficient .- Factory testing of TiB2-based hard alloy parts.- Macrokinetics of degassing during SHS.- An experimental approach to the study of macrokinetics of degassing.- Infiltration characteristics of sample.- Gas evolution in the Ta-C and Ti-C systems.- Locating the source of gas evolution.- Effect of degassing on combustion velocity.- Macrokinetics of SHS compaction.- Characteristic times of SHS compaction.- Hard alloy compaction time.- Hard alloy cooling time.- Effect of the charge size.- SHS compaction of hard alloy consisting of refractory compounds.- SHS compaction of hard alloy consisting of refractory compound and metal binder.- Appendix New data on mechanism of SHS in systems with melting components: combustion of layered systems.