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Obninsk, Russia

Baranova T.F.,FGUP Salyut | Kurskaya I.N.,FGUP ONPP Tekhnologiya | Shkarupa I.L.,FGUP ONPP Tekhnologiya
Refractories and Industrial Ceramics | Year: 2011

A method is provided for joining (gluing) individual silicon nitride components used in the preparation of structural objects of different types of silicon nitride ceramic with a broad range of porosity (from zero to ~23%). The method includes preparation of an adhesive mixture based on silicon nitride, successive application of the mixture to component surfaces being joined, and firing of the joined object at 1000°C with exposure for 2 h. The glued joint is distinguished by high adhesive strength, which makes it possible to prepare objects of complex structure by this method. © 2011 Springer Science+Business Media, Inc. Source


Borodai F.Ya.,FGUP ONPP Tekhnologiya | Platonov V.V.,FGUP ONPP Tekhnologiya | Volkov M.A.,FGUP ONPP Tekhnologiya
Refractories and Industrial Ceramics | Year: 2011

Results of design and construction developments focused on the problem of centering of a core in the cavity of a gypsum mold, the production of ceramic blanks with thickness variability and specified shape, and ways of increasing the uniformity of articles in molding of large sheathing for antenna radomes by means of aqueous slurry casting are presented. © 2011 Springer Science+Business Media, Inc. Source


Suzdal'tsev E.I.,FGUP ONPP Tekhnologiya | Kharitonov D.V.,FGUP ONPP Tekhnologiya | Anashkina A.A.,FGUP ONPP Tekhnologiya
Refractories and Industrial Ceramics | Year: 2011

Existing ceramic technology is analyzed for producing high-speed zenith guided rocket antenna radomes made of glass ceramic OTM-357. This is the main production operations, and their disadvantages are noted. Prospects are considered for modernizing the technology. © 2011 Springer Science+Business Media, Inc. Source


Vikulin V.V.,FGUP ONPP Tekhnologiya | Shkarupa I.L.,FGUP ONPP Tekhnologiya
Refractories and Industrial Ceramics | Year: 2011

Trends in research performed by FGUP ONPP Tekhnologiya in the area of nanotechnologies are described. Results of developments have been introduced into the manufacture of articles in the aviation and rocket and space industries as well as new thermal insulation materials (TIM-MP) which may be employed in steel and alloy casting units and in industrial furnaces. © 2011 Springer Science+Business Media, Inc. Source


Suzdal'Tsev E.I.,FGUP ONPP Tekhnologiya | Kharitonov D.V.,FGUP ONPP Tekhnologiya | Anashkina A.A.,FGUP ONPP Tekhnologiya
Refractories and Industrial Ceramics | Year: 2010

The effect is considered of such operating properties as the design of a molding unit and the method of drying gypsum molds, on the life of the forming surface of molding units. Avoidance of the disadvantages revealed combined with results obtained in part 1 (E. I. Sudal'tsev, D. V. Kharitonov, and A. A. Anashkina, "Increase in the service life of forming surfaces of molding units. Part 1. Study of the improvement of molding unit forming surface material quality," Novye Ogneupory, No. 2, 30-38 (2010).) of this work make it possible to increase the service life of molds by more than a factor of three © 2010 Springer Science+Business Media, Inc. Source

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