TY  - SER
AU  - Nikitin,Pavel Yu
AU  - Zhukov,Ilya A.
AU  - Boldin,Maxim S.
AU  - Perevislov,S.N.
AU  - Chuvildeev,V.N.
TI  - Spark plasma sintering, phase composition, and properties of AlMgB14 ceramic materials
KW  - бориды
KW  - керамические материалы
KW  - шпинель
KW  - электроискровое плазменное спекание
KW  - фазовый состав
KW  - статьи в журналах
N1  - Библиогр.: 22 назв
N2  - AlMgB14-based materials have been synthesized by spark plasma sintering of an Al12Mg17–B powder mixture at 1300 and 1400°C. The phase composition, structure, and properties of these materials have been studied. According to X-ray powder diffraction evidence, spark plasma sintering leads to the formation of the AlMgB14 phase and the MgAl2O4 spinel. The content of the AlMgB14 phase in the materials is ~95 wt %. At a sintering temperature of 1400°C, the resulting material has a hardness and relative density of 30.1 GPa and 99.3%, respectively. It has been demonstrated that a major source of oxygen in the powder mixture is a B2O3 oxide film on the boron powder surface. Thus, when the Al12Mg17 intermetallic powder is used as a precursor, the reaction of AlxMgy intermetallic compounds with B2O3 leads to the formation of the MgAl2O4 spinel
UR  - http://vital.lib.tsu.ru/vital/access/manager/Repository/koha:000896415
ER  -