Wpływ procesu redukcji na właściwości strukturalne i mechaniczne szkieł tlenkowych z grupy (Pb,Bi)-(Si,Ge)-O

• Autorzy: Bochentyn B.

Warianty tytułu

EN

Influence of reduction process on the structural and mechanical properties of (Pb,Bi)-(Si,Ge)-O oxide glasses

• Języki publikacji: PL

Abstrakty

EN

The effect of the reduction process in H2 at 380 °C on the microstructure and elemental composition of a glass Bi0.4Pb0.2Si0.4Ox has been investigated. It has been shown that after reduction a clearly separated top layer with a thickness of approx. 50 µm was formed on the surface of the sample. This layer is depleted of oxygen and has higher electrical conductivity than the interior of the glass. It has also been found that some granules of metallic bismuth with a diameter of tens to hundreds of nanometers were formed on the surface of the glass. Furthermore, depletion of lead was observed in these samples in relation to the initial stoichiometry of the glass prior to trial reduction.

Słowa kluczowe

PL

szkła tlenkowe; skaningowa mikroskopia elektronowa; analiza rentgenowska

EN

oxide glass; reduction; Scanning Electron Microscopy; Energy Dispersive X-Ray Analysis

• Wydawca: ADVSEO sp. z o. o.
• Czasopismo: Technical Issues
• Rocznik: 2015
• Tom: nr 2
• Strony: 3--8
• Opis fizyczny: Bibliogr. 5 poz., rys., tab.

Twórcy

autor

Bochentyn B.

• Politechnika Gdańska Wydział Fizyki Technicznej i Matematyki Stosowanej Katedra Fizyki Ciała Stałego ul. Narutowicza 11/12 80-233 Gdańsk

Bibliografia

• 1. Kusz, B., Structural and electrical transport studies of reduced in hydrogen surface of bismuth germanate glass, Solid State Communications, 2003, 125, pp. 623–627.
• 2. Kusz, B., Trzebiatowski, K., Gazda, M., Murawski, L., Structural studies and melting of bismuth nanocrystals in reduced bismuth germanate and bismuth silicate glasses, J. Non-Cryst. Solids, 2003, 10, pp. 137-145.
• 3. Gackowska, J., Gazda, M., Trzebiatowski, K., Kusz, B., Structure and electric conductivity of reduced lead–germanate, bismuth–germanate and bismuth–silicate glasses modified with potassium, Journal of Non-Crystalline Solids, 2008, 354, pp. 4319–4322.
• 4. Witkowska A., Rybicki J., Di Cicco A., Structure of partially reduced bismuth–silicate glasses: EXAFS and MD study, Journal of Alloys and Compounds, 2005, 401, pp. 135–144.
• 5. Trzebiatowski, K., Witkowska, A., Murawski, L., Granular structure in reduced lead-silicate and bismuth-silicate glasses, Molecular Physics Reports, 2000, 27, pp. 115-121.