New Materials for TAB Technology.

New materials and technology for cell immobilization.

The choice of the most effective manner in which to operate an immobilized cell system is both complicated and, to some extent, a matter of guesswork. There is increasing awareness of the factors affecting reactor choice, and present work is aimed at making reactor performance more predictable.

NEW REFRACTORY MATERIALS FOR THE COPPER INDUSTRY

Wear of various basic refractory materials to substitute to currently used magnesia chrome bricks has been studied, measuring matte and slag penetration and dissolution, through different cup and rotary slag tests. High magnesia with and without impregnation, magnesia graphite, magnesia-alumina spinel with and without impregnation, olivine-magnesia and olivine magnesia- graphite bricks, as well...

New materials in high voltage technology

Assets in high voltage technology have to meet harsh service conditions over long lifetimes of 40 years or more. Due to environmental concerns, substitution of conventional insulating materials becomes a necessity. Because robustness and sustainability are serious requirements, only few new materials are really breaking through. At present some promising material technologies emerge with great ...

A New Technique for Quality Assessment of Railway Ballast Materials

The influence of main quality tests on the overall quality of railway ballast materials is assessed in this study. The need to integrate all acceptance tests in a unified manner for precise evaluation of ballast quality is identified, and a technique of performing this is proposed. Using this approach, a new ballast quality index (BQI) is defined in which, the main acceptance tests including ab...

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