Detonation synthesized nanodiamond powder for the preparation of porous polycrystalline micron powders

• Published in: Diamond and related materials Vol. 17; no. 3; pp. 213 - 216
• Main Authors: Bogatyreva, G.P., Voloshin, M.N., Padalko, V.I.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01.03.2008; Elsevier
• Subjects: Condensed matter: structure, mechanical and thermal properties; Cross-disciplinary physics: materials science; rheology; Detonation; Exact sciences and technology; Fullerenes and related materials; diamonds, graphite; Grounds; Low-dimensional structures (superlattices, quantum well structures, multilayers): structure, and nonelectronic properties; Materials science; Methods of nanofabrication; Nanocomposites; Nanocrystalline materials; Nanomaterials; Nanoparticles; Nanoscale materials and structures: fabrication and characterization; Nanostructure; Physics; Polishing; Porous materials; Sintering (powder metallurgy); Specific materials; Superhard materials; Surface characterization; Surfaces and interfaces; thin films and whiskers (structure and nonelectronic properties); Synthetic diamond; Nanoparticles; Polishing; Surface characterization; Synthetic diamond; Superhard materials; Scanning electron microscopy; Phase composition; Porous materials; Hard materials; Polycrystals; Nanostructures; Surface analysis; High pressure; Detonation nanodiamond; Surface structure; Sintering; Recrystallization; Nanopowder; Nanostructured materials; Nanomaterial synthesis
• ISSN: 0925-9635; 1879-0062
• DOI: 10.1016/j.diamond.2007.12.011

Characteristics and properties of detonation-synthesized nanodiamond (UDD) powder and polycrystalline micron (PDD) powders produced by high pressure–high temperature sintering of detonation-synthesized diamond and a subsequent crushing of the resulting compacts have been described. It has been shown that during the sintering in the diamond stability region the phase composition of the superhard material under study changes and the grain secondary recrystallization takes place. As a result a porous material with the nanostructure, which when ground to the micron powder size exhibit good polishing properties, is produced.