Autor: Simon, G. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Adherence Properties of Acrylic Bone Cement to Alumina Ceramics Designed for Clinical Applications
Autorzy:: Cavalu, S.
Simon, V.
Akin, I.
Goller, G.
Powiązania:: https://bibliotekanauki.pl/articles/1293601.pdf
Data publikacji:: 2014-02
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 87.85.jf
Opis:: The aim of this study is to investigate the adherence properties of acrylic cement based on PMMA to alumina ceramics. These ceramics are suitable for orthopedic and dental applications, as bioinert components in prosthetic surgery. The surface of alumina specimens were subjected to a special treatment based on acid etched followed by two different fluoride treatments: $SnF_2$ and $NaBF_4$, respectively. The structural properties of $Al_2O_3$ specimens were investigated before any treatments by X-ray diffraction, Fourier transform infrared spectroscopy and scanning electron microscopy. The modification occurred after the chemical treatment was investigated by X-ray photoelectron spectroscopy. The adherence of commercial acrylic cement to both treated alumina specimens was evaluated by scanning electron microscopy upon transversal cutting of the specimens. The results demonstrated that $SnF_2$ is more favorable with respect to adhesion of PMMA based orthopedic cements.
Źródło:: Acta Physica Polonica A; 2014, 125, 2; 603-605
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: The Influence of the Au Nanoparticles Dimension on the Photocatalytic Performances of $TiO_2-Au$ Porous Composites
Autorzy:: Melinte, G.
Baia, M.
Georgescu, D.
Baia, L.
Iancu, V.
Diamandescu, L.
Popescu, T.
Cotet, L.
Barbu-Tudoran, L.
Danciu, V.
Simon, S.
Powiązania:: https://bibliotekanauki.pl/articles/1491327.pdf
Data publikacji:: 2012-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 81.05.Rm
81.07.Wx
82.80.Ej
68.37.Lp
82.65.+r
82.50.Hp
Opis:: The influence of Au nanoparticles dimension on the photocatalytic performances of the $TiO_2$ aerogels-Au composites was evaluated. Structural and morphological peculiarities of the $TiO_2$ aerogel, unloaded and loaded with 5 and 22 nm Au nanoparticles, were studied by transmission electron microscopy technique, X-ray diffraction and $N_2$-sorption measurements. UV-Vis diffuse reflectance measurements were performed to determine the band gap energies. The photocatalytic activity was evaluated by monitoring the salicylic acid photodegradation. It was found that the Au nanoparticles promote the anatase phase crystallization and produce the decrease of the specific surface area and band gap energy values. The porous composite with the smallest Au nanoparticles dimension exhibits the best photocatalytic performances.
Źródło:: Acta Physica Polonica A; 2012, 121, 1; 208-210
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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