Research output: Contribution to journal › Article › peer-review
Vacuum-tight ceramic composite materials based on alumina modified with multi-walled carbon nanotubes. / Shutilov, R. A.; Kuznetsov, V. L.; Moseenkov, S. I. et al.
In: Materials Science and Engineering B: Solid-State Materials for Advanced Technology, Vol. 254, 114508, 04.2020.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Vacuum-tight ceramic composite materials based on alumina modified with multi-walled carbon nanotubes
AU - Shutilov, R. A.
AU - Kuznetsov, V. L.
AU - Moseenkov, S. I.
AU - Karagedov, G. R.
AU - Krasnov, A. A.
AU - Logachev, P. V.
N1 - Publisher Copyright: © 2020 Elsevier B.V. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/4
Y1 - 2020/4
N2 - We develop the method of production of conductive vacuum-tight ceramics based on Al2O3 modified by multiwall carbon nanotubes (MWCNTs) at extremely low their content. The method is based on the use of nanopowders of α-Al2O3 combined with application of highly efficient distribution of MWCNTs on the surface of the initial oxide particles, provided by using ultrasonicated MWCNT suspensions stabilized with surfactant. The usage of surfactant destructing of MWCNT agglomerates of structure results in the elimination of cavities in ceramic matrix and improvement vacuum-tight properties of composites. The results can provide the optimization of production technology of strong vacuum-tight ceramics which are perspective for the production of conducting ceramics for accelerating tubes in pulse linear accelerators. Such materials would make it possible to avoid using high-voltage resistive voltage splitters and simultaneously suppress transverse resonance modes usually leading to transverse instability of intense beams in long accelerating structures.
AB - We develop the method of production of conductive vacuum-tight ceramics based on Al2O3 modified by multiwall carbon nanotubes (MWCNTs) at extremely low their content. The method is based on the use of nanopowders of α-Al2O3 combined with application of highly efficient distribution of MWCNTs on the surface of the initial oxide particles, provided by using ultrasonicated MWCNT suspensions stabilized with surfactant. The usage of surfactant destructing of MWCNT agglomerates of structure results in the elimination of cavities in ceramic matrix and improvement vacuum-tight properties of composites. The results can provide the optimization of production technology of strong vacuum-tight ceramics which are perspective for the production of conducting ceramics for accelerating tubes in pulse linear accelerators. Such materials would make it possible to avoid using high-voltage resistive voltage splitters and simultaneously suppress transverse resonance modes usually leading to transverse instability of intense beams in long accelerating structures.
KW - AlO
KW - Carbon nanotube
KW - Ceramic-matrix composites
KW - Electrical conductivity
KW - Vacuum-tight materials
KW - PHYSICAL-PROPERTIES
KW - ISOSTATIC PRESSING HIP
KW - BEHAVIOR
KW - ELECTRICAL-CONDUCTIVITY
KW - STRENGTH
KW - MECHANICAL-PROPERTIES
KW - Al2O3
KW - NANOCOMPOSITES
KW - MICROWAVE-ABSORPTION
KW - MATRIX COMPOSITES
KW - MICROSTRUCTURE
UR - http://www.scopus.com/inward/record.url?scp=85080051562&partnerID=8YFLogxK
U2 - 10.1016/j.mseb.2020.114508
DO - 10.1016/j.mseb.2020.114508
M3 - Article
AN - SCOPUS:85080051562
VL - 254
JO - Materials Science and Engineering B: Solid-State Materials for Advanced Technology
JF - Materials Science and Engineering B: Solid-State Materials for Advanced Technology
SN - 0921-5107
M1 - 114508
ER -
ID: 23665519