Инд. авторы:	Ukhina A.V., Dudina D.V., Anisimov A.G., Mali V.I., Bulina N.V., Bataev I.A., Skovorodin I.N., Bokhonov B.B.
Заглавие:	Porous electrically conductive materials produced by Spark Plasma Sintering and hot pressing of nanodiamonds
Библ. ссылка:	Ukhina A.V., Dudina D.V., Anisimov A.G., Mali V.I., Bulina N.V., Bataev I.A., Skovorodin I.N., Bokhonov B.B. Porous electrically conductive materials produced by Spark Plasma Sintering and hot pressing of nanodiamonds // Ceramics International. - 2015. - Vol.41. - Iss. 9. - P.12459-12463. - ISSN 0272-8842. - EISSN 1873-3956.
Внешние системы:	DOI: 10.1016/j.ceramint.2015.06.055; WoS: 000359165300113;
Реферат:	eng: Nanodiamond particles are known to graphitize upon annealing gradually transforming into carbon onion structures. The goal of this work was to evaluate the potential of nanodiamond powders as a raw material to produce bulk porous electrically conductive materials by means of graphitization-accompanied Spark Plasma Sintering and hot pressing. Despite consolidation that occurred in parallel to graphitization, an increase in the specific surface area (up to 510 m(2) g(-1)) relative to the nanodiamond powder (360 m(2) g(-1)) was observed in compacts with high graphitization degrees. Compacts Spark Plasma Sintered at 1200 degrees C and hot-pressed at 1500 degrees C showed high electrical conductivities, which were one order of magnitude higher than those of the powders produced by nanodiamond graphitization and only 40-50 times lower than that of bulk graphite. Based on these results, a conclusion was made that consolidation of nanodiamonds by Spark Plasma Sintering and hot pressing can be used for developing porous electrically conductive materials with tailored specific surface area. A possible influence of electric current on graphitization of nanodiamonds during Spark Plasma Sintering was suggested. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
Ключевые слова:	DETONATION NANODIAMOND; ULTRA-DISPERSE DIAMOND; ONION-LIKE CARBON; Electrical conductivity; Graphitization; Hot pressing; Spark Plasma Sintering; Nanodiamonds; GRAPHITIZATION;
Издано:	2015
Физ. характеристика:	с.12459-12463