Zobrazeno 1 - 10
of 142
pro vyhledávání: '"N. V. Pitak"'
Publikováno v:
Refractories and Industrial Ceramics. 43:32-35
Silicon carbide refractory materials and specimens of silicon nitride and silicon oxynitride are tested under high-temperature attack from reducing (H2 and CO) and oxidizing gases (O2, air) and from molten slag, alkalis, and iron. It is shown that ni
Publikováno v:
Refractories and Industrial Ceramics. 42:191-194
The optimum compositions of oxygen-free mixtures for manufacture of nitride-based refractory bonds are reported. A technology for manufacturing chamotte refractory materials with a compound nitride-based bond is developed. The newly designed material
Autor:
N. V. Pitak, N. M. Kvasman
Publikováno v:
Refractories and Industrial Ceramics. 40:452-456
It is shown that the partial pressure of oxygen and thermocycling in variable gas media are the main factors characterizing the thermal stability of aluminosilicate refractories. The obtained functional dependences of the variation of the properties
Publikováno v:
Refractories and Industrial Ceramics. 39:422-427
Properties of aluminosilicate, silicon carbide, and carbon refractories and mixtures used for lining blast furnaces and recommended for the future are presented. Recommendations are given for changing the design of some lining zones with the aim of i
Autor:
N. V. Pitak
Publikováno v:
Refractories and Industrial Ceramics. 39:269-277
Alumosilicate refractories in the Al2O3-SiO2 system of kaolin, mullite-silica and mullite-alumina compositions are studied. The kinetic and temperature dependencies of the variation of their properties under the effect of additives, admixtures and th
Publikováno v:
Refractories and Industrial Ceramics. 38:335-344
Autor:
N. V. Pitak
Publikováno v:
Refractories and Industrial Ceramics. 38:274-277
The production of mullite from natural aluminosilicate materials and oxides is described. The characteristics of mullite synthesized under different conditions in gas media by sintering and melting are presented. It is shown that the morphological ch
Autor:
N. V. Pitak
Publikováno v:
Refractories. 37:29-32
Aluminosilicate pressings in various gas media are investigated. It is shown that the formation of crystalline substances and vitreous phase depends on the gas medium. The importance of investigating the composition of the vitreous phase in order to
Publikováno v:
Refractories. 36:379-382
Silicon carbide refractories with binders of silicon nitride and silicon oxynitride are compared with dense aluminum silicate refractories. It is shown that silicon carbide refractories possess high stability in aluminum melts and vapors of aluminum
Publikováno v:
Refractories. 36:97-100
Investigations of the technology of mullite-corundum refractories containing silicon carbide and used for linings of transportable mixers are described. It is shown that an addition (10%) of silicon carbide to a mullite-corundum mixture ensures a hig