Preparation of titanium diboride nanopowder

Nanoscaled Metal Borides and Phosphides: Recent Developments and Perspectives

“…That is the case of the TiB 2 synthesis from elemental titanium, gaseous BBr 3 , and liquid sodium (Ti:B:Na = 1:2:6) at 400 °C. 325 Liquid TiCl 4 and solid NaBH 4 (Ti:B = 1:4.8 453 or Ti:B = 1:6.5 454 ) were also combined in an autoclave and converted into TiB 2 above 500 °C (Figure 40), but in these conditions TiCl 4 is presumably in the vapor state. The same procedure was used for the synthesis at ca.…”

“…TEM picture of TiB 2 nanoparticles obtained from a mixture TiCl 4 :NaBH 4 = 1:6.5 at 700 °C under autogenous pressure . Reprinted with permission from ref . Copyright 2010 Springer.…”

Synthesis of nano-sized titanium diboride in a melt of anhydrous sodium tetraborate

“…Typical representatives of refractory compounds are borides, but information on the methods of synthesis of borides of 4th group elements in the nanodispersed state is scarce [4][5][6][7][8][9][10][11][12][13][14]. The Methods of synthesis of nano-sized TiB 2 are not numerous and are mainly related to the thermolysis of titanium borohydride or its derivatives [4,7,8], for example, in accordance to scheme (1):…”

“…In [5,11] a method has been studied for the synthesis of nano-sized TiB 2, based on the interaction of TiCl 4 with NaBH 4 in the absence of a solvent, at elevated temperature and pressure, in a vacuum or under argon, bypassing the step of isolating titanium borohydride or its derivatives. On the TiB 2 after separation of by-products TiB 2 was isolated with the particle size of 35-50 nm.…”

Effect of the solid precursors on the formation of nanosized TiBx powders in RF thermal plasma

“…Recently, interest in high-melting compounds has increased in connection with nanostructural materials [3]. Nanoparticulate titanium diboride is also of particular interest among refractory compounds [4].…”