The proposed research program is relevant to domestic industry because it provide the scientific knowledge necessary for small niche industries, in particular, to be able to produce electronic components with high "added value" for high-frequency applications. Several Slovenian and foreign producers are potential partners for further joint applied research. The proposed research program is also important for the education of young scientists, who are included in its realisation. Moreover, new knowledge will enrich the Materials course at the Faculty for Chemistry at the University of Ljubljana. Materials with improved electric properties were subject of intensive research activities performed for KEKOn and KEKO-Equipment, Žužemberk. As a result of joint research collaboration a number of new ceramics with better functional propertie were developed such are themperature stable ceramic capacitors and microwave resonators. The work in the field of glass in the past year was oriented into the research for the industrial partners. For them we analysed the glass melt viscosities and successfully produced in semi-industrial scale bio-soluble mineral fibres where we analysed the influence of the centrifuge wheels rotation speed on the fibres thickness and the fibres thickness distributions. Beside the analysis of the mineral fibres part of the research was also devoted to analysis and characterization of the binders distribution which are often applied in mineral fibres production.Analyses of the raw materials and determination of their influence on the final properties of heating elements from ETA, Cerkno production was performed in order to discover the reasons for its early burn through. Investigations showed that increased content of iron oxide is responsible for the formation of local electrical arc within the heating element that leads to the final breakdown of the heating element.