N. Barbakadze
P. Melikishvili Institute of Physical & Organic Chemistry, I. Javakhishvili Tbilisi State University, 31 A. Politkovskaya St, Tbilisi, 0186, Georgia
K. Sarajishvili
P. Melikishvili Institute of Physical & Organic Chemistry, I. Javakhishvili Tbilisi State University, 31 A. Politkovskaya St, Tbilisi, 0186, Georgia
R. Chedia
P. Melikishvili Institute of Physical & Organic Chemistry, I. Javakhishvili Tbilisi State University, 31 A. Politkovskaya St, Tbilisi, 0186, Georgia
L. Chkhartishvili
Boron-Containing & Powdered Materials Laboratory, F. Tavadze Metallurgy & Materials Science Institute, 10 E. Mindeli St, Tbilisi, 0186, Georgia
O. Tsagareishvili
Boron-Containing & Powdered Materials Laboratory, F. Tavadze Metallurgy & Materials Science Institute, 10 E. Mindeli St, Tbilisi, 0186, Georgia
A. Mikeladze
Boron-Containing & Powdered Materials Laboratory, F. Tavadze Metallurgy & Materials Science Institute, 10 E. Mindeli St, Tbilisi, 0186, Georgia
M. Darchiashvili
Boron-Containing & Powdered Materials Laboratory, F. Tavadze Metallurgy & Materials Science Institute, 10 E. Mindeli St, Tbilisi, 0186, Georgia
V. Ugrekhelidze
Quality Management Department, National High Technology Centre of Georgia, 21 P. Kavtaradze St, Tbilisi, 0186, Georgia
Abstract
Due to their unique set of physical and chemical properties, boron carbide-based composites have become the hard materials most widely used in current high technologies. However, the range of possible applications of these materials is narrowed because of boron carbide’s brittleness and low resistance to cracking. This problem can be resolved by creating nanocrystalline structures from sufficiently finely dispersed starting materials. Several novel technological routes of direct chemical synthesis of finely dispersed boron carbide/metal diboride composite powders from liquid precursors are elaborated.
