Multi-faceted experiments were conducted to measure the properties of several mold slags, needed for fundamental characterization of heat transfer and friction in the interfacial gap between the shell and mold during the continuous casting of steel. A novel apparatus was used to measure the friction coefficient between solidified mold flux and copper at elevated temperatures. The measured softe...

Results about micromechanical properties (internal friction and creep) of several glasses (metallic, semi-conductor and oxydes glass) are presented : they seem more characteristic of the vitreous state itself than the chemical nature of the glass. The assumption about the formation of shear microdomains leads to the interpretation of the results which might be a contribution to a better knowled...

Deep in a freezer Japan, stash of tiny but exceptionally hardy micro-animals called tardigrades offered an even more surprising revelation. When thawed from their Rip Van Winkle–like slumber after 31 years, the seemed none worse for wear and began to reproduce. Inspired by natural processes that preserve features mummified tissue or permit full revival cells, tissues, entire organisms, scientis...

During the crystallization study of the bulk metallic glass Zr46.8Ti8.2Cu7.5Ni10Be27.5 (Vit4) we have demonstrated that the primary crystals appearing during isothermal annealing in the glass region, above Tg and before Tx, were of quasicrystalline nature and beryllium free. The formula of the quasicrystalline phase so obtained and determined by electron techniques (EDX and EELS) was Zr63Ti14.4...

Extreme non-Arrhenius dependence of the ionic conductivity in optimized fast ion conducting glasses has been observed. When all the chemical factors controlling the ionic conductivity in glass have been optimized, the conductivity fails to reach the values expected, >0.1 (Ωcm)−1 at 298 K. A new series of glasses zAgI+(1−z) [0.525Ag2S+0.475B2S3:SiS2] have been measured for the first time and are...