Zobrazeno 1 - 10
of 92
pro vyhledávání: '"Iakovos Sigalas"'
Publikováno v:
International Journal of Ceramic Engineering & Science, Vol 3, Iss 2, Pp 60-76 (2021)
Abstract The formation reaction mechanism of Ti2AlC cubic boron nitride (cBN) composite materials was investigated using different particle sizes at different volume percentages of cBN (20 and 40 vol%), at a constant moderate pressure while varying t
Externí odkaz:
https://doaj.org/article/5f982f2ee97843e8b36983f2d1ee1770
Autor:
Gabriela Mera, Ralf Riedel, Nobuyoshi Miyajima, Leonid Dubronvinsky, Wallace R. Matizamhuka, Natalia Dubrovinskaia, Mathias Herrmann, Iakovos Sigalas
Publikováno v:
Materials, Vol 4, Iss 12, Pp 2061-2072 (2011)
Bulk B-C-N materials were synthesized under static high thermobaric conditions (20 GPa and 2,000 °C) in a multianvil apparatus from a polymer derived t-BC1.97N ceramic. The bulk samples were characterised using X-ray synchrotron radiation and analyt
Externí odkaz:
https://doaj.org/article/47f86125164344c7b816530e3178f88f
Autor:
Ronald Machaka, Bonex W. Mwakikunga, Elayaperumal Manikandan, Trevor E. Derry, Iakovos Sigalas, Mathias Herrmann
Publikováno v:
Advances in Materials Science and Engineering, Vol 2012 (2012)
Results on a systematic study on the effects of ion implantation on the near-surface mechanical and structural properties of boron suboxide (B6O) prepared by uniaxial hot pressing are reviewed. 150 keV fluorine ions at fluences of up to 5.0×1016 ion
Externí odkaz:
https://doaj.org/article/84a5526349424d00b6f13d5fae8e62a8
Publikováno v:
Advances in Materials Science and Engineering, Vol 2011 (2011)
The Vickers microhardness measurements of boron suboxide (B6O) ceramics prepared by uniaxial hot-pressing was investigated at indentation test loads in the range from 0.10 to 2.0 kgf. Results from the investigation indicate that the measured microhar
Externí odkaz:
https://doaj.org/article/919be66f4d1b4dbbbb13e3668e7d7ec0
Publikováno v:
Ceramics International. 48:563-568
The effects of the addition of tetragonal 3mol% Y2O3 – ZrO2 into a MgAl2O4 spinel matrix were investigated. MgAl2O4 spinel's lacking mechanical properties prevent further utilization in many structural and refractory applications even though it has
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dab54e3f014f137b1c3f491861a57e97
https://doi.org/10.1016/j.ceramint.2021.09.134
https://doi.org/10.1016/j.ceramint.2021.09.134
Publikováno v:
Progress in Additive Manufacturing.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ae7642823f5b78fe7ad815e222692f7
https://doi.org/10.1007/s40964-022-00350-2
https://doi.org/10.1007/s40964-022-00350-2
Publikováno v:
Journal of the European Ceramic Society. 41:167-175
A hybrid carbide ultra-high temperature ceramics matrix [(Hf,Ti)C-SiC] reinforced with BN-coated carbon fibres was fabricated and tested for surface oxidation resistance. The UHTC composite showed an average mass ablation rate of 0.0014 g/s after exp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::951a32ebcceb4a513b70b15143086c05
https://doi.org/10.1016/j.jeurceramsoc.2020.08.048
https://doi.org/10.1016/j.jeurceramsoc.2020.08.048
Autor:
Iakovos Sigalas, R. Sule
Publikováno v:
Clay Minerals. 55:166-171
The influence of excess Al2O3 on 3:2 mullite produced from α-Al2O3 and pyrophyllite powder was examined. A mixture consisting of 28 wt.% dehydroxylated pyrophyllite and 72 wt.% α-Al2O3 was milled in an attrition mill. The milled powders were sinter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a772a4338b894c1f89b5640a714fd5e
https://doi.org/10.1180/clm.2020.22
https://doi.org/10.1180/clm.2020.22
Publikováno v:
Ceramics International. 46:3177-3182
Alumina ceramic components were produced using gelcasting and 3D printing techniques to generate the end product. The 3D printed mould made from (acrylonitrile butadiene styrene) ABS filament provides a convenient demoulding method by dissolution of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c5ff5c4a99ceffc6ecd0f1a519c00fdf
https://doi.org/10.1016/j.ceramint.2019.10.021
https://doi.org/10.1016/j.ceramint.2019.10.021
