IR Spectroscopic Study of the Organic Component of Ultrafine Diamond Produced by Detonation Synthesis

IR spectra of ultrafine diamonds produced by different teams of researchers are studied. The effects of heating and radiation on the properties of ultrafine diamonds are studied. Quantitative assumptions on the kinetics of formation of ultrafine diamonds are made from analysis of IR spectra.     

Channel-collapse effect examined with laboratory equipment and by two-dimensional calculation

Combustion, Explosion, and Shock Waves -     

Determining the enthalpy and specific heat of magnesia spinels in the range 1400–2200°K

Conclusions Temperature functions were obtained for H(T) and C_p(T) which can be used for calculating the thermodynamic functions of the spinels MgAl₂O₄ and MgCr₂O₄ in the temperature regions of their service (up to 2200°K), to supplement the existing relationships (up to 1800°K).Translated from Ogneupory, No. 6, pp. 9–12, June, 1979.     

Properties of aluminophosphate concretes containing various types of orthophosphoric acid

Conclusions The type of orthophosphoric acid has the maximum influence on the properties of corundum concretes, a lower influence on high-alumina concretes, and practically no influence on quartz-clay concretes. It is desirable to use wet-process orthophosphoric acid for refractory concretes. The excellent properties of concretes in the system A1₂O₃-SiO₂ based on this acid which is also cheaper enabled us to recommend it for preparing refractory concretes.The advantage of using H₃PO₄ of various types for corundum concretes is determined by the requirements placed on them in actual working conditions.Translated from Ogneupory, No.6, pp. 58–61, June, 1970.     

Effect of the charge composition of waste oxide catalysts on the wettability of enamel

It is shown that in replacement of conventional raw materials by waste oxide catalysts, the wettability of enamels from charges with an elevated content of copper-zinc catalyst is improved. Replacement by aluminosilicate and especially iron-chromium catalysts worsens the wettability of the enamels. Replacement of an aluminosilicate catalyst by an iron-chromium catalyst also has a negative effect.Translated from Steklo i Keramika, No. 7, pp. 29 – 30, July, 1996.