Kim, Ji Woo Shim, Jae-Hyeok Ahn, Jae-Pyoung Cho, Young Whan Kim, Jae-Hun Oh, Kyu Hwan 2024-01-20T23:05:27Z 2024-01-20T23:05:27Z 2021-09-03 2008-05-31 0167-577X https://pubs.kist.re.kr/handle/201004/133477 A novel method for the synthesis of transition-metal boride nanopowder has been developed using a mechanochemical reaction between LiBH(4), LiH and transition-metal chloride (TiCl(3) and VCl(3)) by high energy ball milling. This method successfully produces TiB(2) and VB(2) particles dispersed within a soluble LiCl matrix. Subsequent washing with distilled water, ethanol and acetone to remove the LiCl matrix phase yields TiB2 and VB(2) nanopowders of 15-60 nm particle size. From the X-ray diffraction patterns and high resolution transmission electron microscopy image, it is found that each particle is polycrystalline consisting of 3-5 nm crystallites. Neither particle nor crystallite size are increased significantly after heating at 680 degrees C. (c) 2008 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE BV BORIDE NANOCRYSTALLITES COATINGS POWDERS GROWTH NBB2 AIR Mechanochemical synthesis and characterization of TiB(2) and VB(2) nanopowders Article 10.1016/j.matlet.2007.12.022 1 MATERIALS LETTERS, v.62, no.15, pp.2461 - 2464 MATERIALS LETTERS 62 15 2461 2464 scie scopus 000255999600025 2-s2.0-41949123336 Materials Science, Multidisciplinary Physics, Applied Materials Science Physics Article BORIDE NANOCRYSTALLITES COATINGS POWDERS GROWTH NBB2 AIR mechanochemical reaction transition-metal boride X-ray techniques electron microscopy