Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Bisserka Samuneva"'
Publikováno v:
Processing and Application of Ceramics, Vol 3, Iss 3, Pp 125-130 (2009)
In the present work the results of the research on the sol-gel synthesis and structure of cordierite (2MgO·2Al2O3·5SiO2), tialite (Al2O3·TiO2) and cordierite/tialite glass-ceramics as well cordierite containing 2 wt.% of Co and Co+Cu have been des
Externí odkaz:
https://doaj.org/article/c6ae24c5d1284e5f8e0b41f21ab7b144
Publikováno v:
Processing and Application of Ceramics, Vol 3, Iss 1-2, Pp 47-50 (2009)
The aim of the present work is synthesis of ferroelectric nanomaterials, in the K2O-Nb2O5-SiO2 system via solgel method and studying the processes of formation and structure of the synthesized ferroelectric nanomaterials. The structure of synthesized
Externí odkaz:
https://doaj.org/article/3497b8cef14a4c55aeddf825dce1f2f3
Autor:
Lachezar Radev, Liliana Pavlova, Bisserka Samuneva, Elena Kashchieva, Irena Mihailova, Maria Zaharescu, Barbara Malic, Luminita Predoana
Publikováno v:
Processing and Application of Ceramics, Vol 2, Iss 2, Pp 103-108 (2008)
LaCoO3 powders are studied because they exhibit interesting electrical, magnetic and catalytic properties. In this paper, new synthesized La2O3-CoO-SiO2 powders with different quantity of silica were prepared via solgel method in aqua media, starting
Externí odkaz:
https://doaj.org/article/95445e8d307c4f3f908e6fc05a9d3708
Publikováno v:
Open Chemistry, Vol 7, Iss 4, Pp 702-710 (2009)
The silicocarnotite, as an inorganic part of the coatings, has been synthesized using a polystep sol-gel method. The chemical composition of the prepared silicocarnotite sol is described as 58.12 CaO, 29.42 P2O5, 12.45 SiO2 (wt%), where Ca/P+Si = 1,6
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::043547b955d43aa10afa801c57f40191
https://doaj.org/article/8ed2717f8f74431699595a26ccaf6911
https://doaj.org/article/8ed2717f8f74431699595a26ccaf6911
Publikováno v:
Processing and Application of Ceramics, Vol 3, Iss 3, Pp 125-130 (2009)
In the present work the results of the research on the sol-gel synthesis and structure of cordierite (2MgO·2Al 2 O 3 ·5SiO 2 ), tialite (Al 2 O 3 ·TiO 2 ) and cordierite/tialite glass-ceramics as well cordierite containing 2 wt.% of Co and Co+Cu h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::282d72e6aec70386cbc5183e6406f320
Publikováno v:
Open Chemistry, Vol 7, Iss 3, Pp 322-327 (2009)
Ceramics, with basic composition based on the CaO-SiO2-P2O5-MgO system with different Ca+ Mg/P+Si molar ratio (R), were prepared via polystep sol-gel technique. The structure of the obtained ceramic materials has been studied by XRD, FTIR spectroscop
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4764b86dca283d69f2004a7aef6c1665
https://doi.org/10.2478/s11532-009-0014-2
https://doi.org/10.2478/s11532-009-0014-2
Publikováno v:
Processing and Application of Ceramics. 3:47-50
The aim of the present work is synthesis of ferroelectric nanomaterials, in the K2O-Nb2o5-SiO2 system via solgel method and studying the processes of formation and structure of the synthesized ferroelectric nanomaterials. The structure of synthesized
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b9eec660f8d2ab62488c4fdd717b4fd
https://doi.org/10.2298/pac0902047c
https://doi.org/10.2298/pac0902047c
Autor:
Georgi Chernev, A. Wu, Bisserka Samuneva, Lyudmila Kabaivanova, E. Emanuilova, E. Kashchieva, Maria Helena Fernandes, Isabel M. Miranda Salvado, P. Djambaski
Publikováno v:
Journal of Sol-Gel Science and Technology. 48:73-79
In this work the research results on the sol–gel synthesis and structure of silica nanocomposites, containing carrageenan and their application as carriers for cell immobilization were described. The samples were prepared at room temperature by rep
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b9cd32e2d155d31ece77d74c22da5f30
https://doi.org/10.1007/s10971-008-1799-8
https://doi.org/10.1007/s10971-008-1799-8
Autor:
Isabel M. Miranda Salvado, Maria Helena Fernandes, Lyudmila Kabaivanova, Aiying Wu, E. Emanuilova, Georgi Chernev, Peter Djambaski, Bisserka Samuneva, E. Kashchieva
Publikováno v:
Journal of Non-Crystalline Solids. 354:733-740
The present paper deals with the influence of the main silica precursors and the type and quantity of organic components (HEMA, PEO and chitin) on the structure of hybrid materials and their applicability for microbial cell immobilization. The sol–
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c015656a0c0ccca4d7811a7d86915d27
https://doi.org/10.1016/j.jnoncrysol.2007.07.094
https://doi.org/10.1016/j.jnoncrysol.2007.07.094
Autor:
Barbara Malič, Luminita Predoana, Liliana Pavlova, Irena Mihailova, Maria Zaharescu, Bisserka Samuneva, Lachezar Radev, E. Kashchieva
Publikováno v:
Processing and Application of Ceramics. 2:103-108
LaCoO3 powders are studied because they exhibit interesting electrical, magnetic and catalytic properties. In this paper, new synthesized La2O3-CoO-SiO2 powders with different quantity of silica were prepared via solgel method in aqua media, starting
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ccca0abdaefe10312dd565584f039fb3
https://doi.org/10.2298/pac0802103r
https://doi.org/10.2298/pac0802103r