%0 Journal Article %A Irina Severin and M. Caramihai and K. Chung and G. Tasca and T. Park %D 2009 %J International Journal of Materials and Metallurgical Engineering %B World Academy of Science, Engineering and Technology %I Open Science Index 34, 2009 %T Mechanical and Chemical Reliability Assessment of Silica Optical Fibres %U https://publications.waset.org/pdf/10561 %V 34 %X The current study has investigated the ageing phenomena of silica optical fibres in relation to water activity which might be accelerated when exposed to a supplementary energy, such as microwaves. A controlled stress by winding fibres onto accurate diameter mandrel was applied. Taking into account that normally a decrease in fibre strength is induced in time by chemical action of water, the effects of cumulative reagents such as: water, applied stress and supplementary energy (microwave) in some cases acted in the opposite manner. The microwave effect as a structural relaxation catalyst appears unexpected, even if the overall gain in fibre strength is not high, but the stress corrosion factor revealed significant increase in certain simulation conditions. %P 589 - 594