Zobrazeno 1 - 10
of 36
pro vyhledávání: '"O.A. Lukianova"'
Autor:
Vladislav Kulitckii, Ziyuan Rao, O.A. Lukianova, Zhiming Li, Gerhard Wilde, Sergiy V. Divinski
Publikováno v:
Scripta Materialia. 188:264-268
Tracer diffusion of the matrix elements in CoCrFeNiMn-based high-entropy alloys with 0.2, 0.5 and 0.8 at.% carbon is measured at 1373 K. The diffusion coefficients are found to depend non-monotonously on the carbon content. The diffusion retardation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c9c197ab44dcdcb9b3ecb9c579c2a41b
https://doi.org/10.1016/j.scriptamat.2020.07.044
https://doi.org/10.1016/j.scriptamat.2020.07.044
Publikováno v:
Ceramics International. 45:14338-14346
Formation of silicon affects different physical properties of silicon nitride ceramics. Decomposition of Si3N4 and formation of free Si are highly important processes and depend on many factors. The proposed method of combined nano-Raman spectroscopy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c28ea877fb7d833a4a7d464bfc5e8b5a
https://doi.org/10.1016/j.ceramint.2019.04.148
https://doi.org/10.1016/j.ceramint.2019.04.148
Publikováno v:
Ceramics International. 45:9497-9501
It has been shown that the grain growth and amount of the glass phase influence the electrical resistivity of pressureless sintered and spark plasma sintered silicon nitride. Sintering additives strongly affect the impurity conductivity of pressurele
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::61f9536e4f0d470ad2188da3d55bba8e
https://doi.org/10.1016/j.ceramint.2018.09.198
https://doi.org/10.1016/j.ceramint.2018.09.198
Tracer diffusion of the substitutional components in (CoCrFeNiMn)$_{1-x}$C$_x$ high-entropy alloys with x = 0.002, 0.005 and 0.008 (in at. fractions) is measured at elevated temperatures from 1173 to 1373 K. Two different characteristic effects of in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5961c1274bd5475d419b2ed4d277f70b
Autor:
O.A. Lukianova, O.N. Ivanov
Publikováno v:
Ceramics International. 44:390-393
It was shown that spark plasma sintered silicon nitride with a high content of Al2O3 and MgO consists of α and β silicon nitride, the main phase being α silicon nitride. The increase in the sintering temperature did not lead to significant changes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f77a7d8a4f39c39e55013dc69e4ed1b8
https://doi.org/10.1016/j.ceramint.2017.09.188
https://doi.org/10.1016/j.ceramint.2017.09.188
Autor:
V. V. Sirota, O.A. Lukianova
Publikováno v:
Ceramics International. 43:8284-8288
The silicon nitride ceramics with a beneficial combination of low dielectric losses and improved physical properties was fabricated by cold isostatic pressing and pressureless sintering. The fine grain microstructure, three-phase composition based on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4530c288a3eb79f38d4201a262dec957
https://doi.org/10.1016/j.ceramint.2017.03.161
https://doi.org/10.1016/j.ceramint.2017.03.161
Publikováno v:
Nanoscale Research Letters, Vol 12, Iss 1, Pp 1-6 (2017)
Nanoscale Research Letters
Nanoscale Research Letters
The microstructure and phase composition of the high-content Al2O3-Y2O3-doped spark plasma-sintered silicon nitride were investigated. Fully dense silicon nitride ceramics with a typical α-Si3N4 equiaxed structure with average grain size from 200 to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f85a23dc14008ec07f316408e1b6d739
http://link.springer.com/article/10.1186/s11671-017-2067-z
http://link.springer.com/article/10.1186/s11671-017-2067-z
Publikováno v:
2018 IEEE 8th International Conference Nanomaterials: Application & Properties (NAP).
It was shown that described spark plasma sintered Al 2 O 3 -MgO doped silicon nitride has high mechanical properties in particular the microhardness and the Young's modulus. An increase in the temperature of SPS from 1550 °C up to 1650 °C led to an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9fbe26aab09dfc4de1476544b129f53
https://doi.org/10.1109/nap.2018.8914893
https://doi.org/10.1109/nap.2018.8914893
Publikováno v:
2018 IEEE 8th International Conference Nanomaterials: Application & Properties (NAP).
In this article we have shown that the material obtained by sintering without pressure with addition of oxides of yttrium and aluminum has excellent electrophysical properties. In particular, the electrical resistivity of pressureless sintered at 165
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0d20b6d5a8c68b259297b4ab9754d570
https://doi.org/10.1109/nap.2018.8914930
https://doi.org/10.1109/nap.2018.8914930
Publikováno v:
2017 IEEE 7th International Conference Nanomaterials: Application & Properties (NAP).
This article describes the effects of aluminum, yttrium and magnesium oxides on the microhardness of silicon nitride ceramics. Such methods as spark plasma sintering and standard sintering in a nitrogen atmosphere for a short time were chosen. The te
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::77b469a572c43050bc32c718c4c72a68
https://doi.org/10.1109/nap.2017.8190360
https://doi.org/10.1109/nap.2017.8190360