I 2013

Glass-ionomer cement and implants for use in otosurgery
In this paper glass-ionomer cement and implants for use in otosurgery, which were developed and produced at the Institute of Ceramics and Building Materials, were presented. Treatment of hypoacusia requires defects to be reconstructed in the ossicular chain of middle ear in the cases of pathology resulting from chronic ear inflammations, trauma or congenital malformations. The clinical studies have been performed at the Institute of Physiology and Pathology of Hearing in Kajetany. Results of these long-term studies were presented. The application of glass-ionomer materials is the best method giving excellent results with regard to the reconstruction of a damaged conducting system in the middle ear. The use of cement and implants allows the wide range of anatomical reconstructions of bone defects that are result of disease processes or surgical removal. The anatomic reconstructions allow to restore primary and optimal function of the treated tissues. Application of glass-ionomer implants enables significant reduction in operation time. The glass-ionomer cement and implants are equally useful for reconstructive surgery in children and adults.
prof. Henryk Skarżyński Ph.D. Eng., Joanna Karaś M.Sc. Eng, Tadeusz Floriańczyk Ph.D. Eng.

Hydrothermal synthesis of zinc-aluminum spinel
In this paper results of hydrothermal synthesis of zinc-aluminum spinel ZnAl2O4 were presented and discussed. Reactions were carried out in a microwave reactor ERTEC. The influence of process parameters (pressure, temperature and time) on the properties of obtained spinel powder were examined. Properly selected process parameters enabled a spinel particle size below 10 nm. Results described in the article were presented in author’s PhD thesis.
Tomasz Strachowski Ph.D. Eng.

Mechanochemistry methods in glass sealant synthesis
Mechanical activated barium silicate glasses were studied as a potential sealant for joining of different materials. Influence of glass batch mechanical activation on glass synthesis process was determined. Thermal properties and structure of BaO – SiO2 – MgO – ZnO system glasses containing less than 40% mas of SiO2 as the network forming component were studied. Mechanical activation on the thermal properties were investigated. Melting progress were tested using high temperature microscopy. Mechanical activation causes a decrease of the melting temperature and increase crystallization tendency of the investigated materials. The prospective glasses are indicated for sealant applications.
Małgorzata Ciecińska Ph.D. Eng. , Paweł Stoch Ph.D Eng.

Glasses with energy – saving low-emissive and solar control low-emissive coatings

Coating of the glass surface with thin films of metals and metal compounds such metal oxides and the others is a very effective way to obtain the new properties of the glass without necessity to modify the bulk glass composition. The thin film coated glass is commonly used in buildings with aim to enhance the user’s comfort and energy saving. The coatings of metal compounds on glass may be obtained both “on-line” during the forming process and „off-line”, but In that case the glass sheets needs to be carefully cleaned before coating process. Thin films of metals for low emissive glasses needs to be coated „off-line” in the vacuum conditions. The method commonly used in commercial production of energy saving low-emissive (Low-E) glasses is magnetron sputtering. In this paper there some basic information on the properties and coating methods used in glass industry for producing the Low-E and Solar-Low-E glasses have been presented.

Elżbieta Żelazowska Ph.D. Eng., Paweł Pichniarczyk Ph.D. Eng.
Glass-ionomer cement and implants for use in otosurgery
The paper concerns the fabrication of inorganic silicate and borosilicate glasses based on the chemical compositions of the industrial glasses. The examinated glasses were coloured on the green and blue by doped of chosen transition metal compounds: CoO and K2Cr2O7. Optical characteristics of colured glasses were used to determine influence of the colouring ions on the transmission and absorption spectra. This paper presents the most often used methods to define graphical and numerical characteristics of coloured glasses based on colour spaces: CIE XYZ and CIE Lab.
Agnieszka Terczyńska-Madej M.Sc. Eng, Marek Myszkowski Eng., Dominik Bysiek Eng., Katarzyna Cholewa-Kowalska Ph.D. Eng.,
prof. Maria Łączka Ph.D. Eng.