Structure and properties of the ceramics based on quasicrystal powders processed by plasma coating method

30th International Conference on Interaction of Intense Energy Fluxes with Matter

Ekimov, E.A.^1 ; Ivanov, A.S.^2 ; Pal, A.F.^3,5 ; Petrzhik, M.I.^4 ; Ryabinkin, A.N.^3,5 ; Serov, A.O.^3,5

Institute for High Pressure Physics, Russian Academy of Sciences, Kaluzhskoe Shosse 14, Troitsk, Moscow

142190, Russia^1

National Research Center, Kurchatov Institute, Kurchatov Square 1, Moscow

123182, Russia^2

Skobeltsyn Institute for Nuclear Physics, Lomonosov Moscow State University, Leninskiye Gory 1, Moscow

119899, Russia^3

National University of Science and Technology MISIS, Leninskiy Avenue 4, Moscow

119049, Russia^4

State Research Center of the Russian Federation, Troitsk Institute for Innovation and Fusion Research, Pushkovykh Street 12, Troitsk, Moscow

142190, Russia^5

关键词: Binding materials;    Composite powders;    Hydrostatic conditions;    Micron-size particles;    Modifying agents;    Production process;    Quasicrystalline particles;    Structure and properties;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/653/1/012128/pdf
DOI  :  10.1088/1742-6596/653/1/012128

来源: IOP

【 摘 要 】

Homogeneous incorporation of a small amount of binding material or modifying agent in the batch consisting of micron size particles is a problem of a composite material production process. In this work the problem is solved by deposition of a thin coating consisting of binding material on the initial powder particles by means of high-rate magnetron sputtering. The confinement of dusty particles in plasma was used in fine powder processing procedure. Composite powders based on the Al-Cu-Fe quasicrystalline particles with nickel coating were obtained. Their investigation showed that the method provides uniform incorporation of small quantities of additives (at concentration of about 3 wt. %) to fine powders. The powders were pressed at room temperature under quasi-hydrostatic conditions at high pressures. After pressing the samples were sintered in hydrogen at normal pressure. Structure and mechanical properties of the sintered samples were studied. The conditions of sintering the composite powder, which provide producing compacts with improved performance data, were established.