Effect of surfactants on refractory material properties

Results are provided for a study of the effect of Termoplast series plastifiers on structure formation for specimens based on chamotte and fired bauxite under laboratory and industrial conditions. A favorable effect is demonstrated for test additions both on compaction during pressing, and also on object strength properties after firing.With introduction of Termoplast T3 into commercial mixes in an amount of 0.5% total object porosity is reduced from 256-30 to 10-15%, and ultimate strength in compression increases from 30-35 to 40-50 MPa. © 2013 Springer Science+Business Media New York

Innovative organic binders for metallurgy and the refractories industry

Questions related to the use of binders for briquetting in industry are considered. Results of pilot-plant and industrial tests of domestically produced innovative binders are presented. © 2013 Springer Science+Business Media New York

Collinear laser spectroscopy of radioisotopes of zirconium

Isotope shifts and hyperfine structures have been measured for radioisotopes of ionic zirconium using on-line laser spectroscopy at the IGISOL facility in Jyväskylä, where the installation of an ion beam cooler/buncher has significantly improved the experimental sensitivity. Measurements have been made on all the neutron-deficient isotopes from 87Zr to 90Zr, including the isomers 87m,89mZr, and the neutron-rich isotopes from 96Zr to 102Zr. The change in mean square charge radii between the isotopes and the nuclear moments of the odd isotopes have been extracted. The data show a sudden increase in the mean square charge radius at mass A = 100, consistent with an onset of nuclear deformation which has been observed in the gamma ray spectroscopy of isotope chains in this region of the nuclear chart.</p