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  • 1
    Monograph available for loan
    Monograph available for loan
    Polyarnyj krug 1988 (1988)
    Moskva : Mysl'
    Details Availability
    Call number: AWI P7-89-0369
    Description / Table of Contents: Высокие широты нашей планеты. Что там? «Белое безмолвие», айсберги и торосы, загадочные магнитные бури, таинственный свет тропосферы, обитатели холодных океанских глубин, жизнь и смерть во льдах, города в полярной пустыне и мощные ледоколы, человек... О судьбах людей, познающих законы «белого безмолвия», научных поисках и открытиях, прогнозах, дискуссиях — об этом и многом другом рассказывает географический научно-художественный сборник.
    Description / Table of Contents: High latitudes of our planet. What is there? "White silence", icebergs and hummocks, mysterious magnetic storms, mysterious light of the troposphere, inhabitants of cold ocean depths, life and death in ice, cities in the polar desert and powerful icebreakers, people ... About the fate of people who know the laws of "white silence" , scientific searches and discoveries, forecasts, discussions - this and many other things tells a geographical scientific and artistic collection.
    Type of Medium: Monograph available for loan
    Pages: 538 Seiten , Illustrationen , 23 cm
    ISBN: 5-244-00151-5
    Language: Russian
    Note: In kyrillischer Schrift
    Location: AWI Reading room
    Branch Library: AWI Library
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  • 2
    Electronic Resource
    Electronic Resource
    Physical properties of rammed baddeleyite bodies (1991)
    Springer
    Refractories and industrial ceramics 32 (1991), S. 355-357 
    Details
    ISSN: 1573-9139
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01282012
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  • 3
    Electronic Resource
    Electronic Resource
    Deformation and fracture of CeO2-stabilized zirconia ceramics. I. Strength and deformability (1995)
    Springer
    Refractories and industrial ceramics 36 (1995), S. 9-13 
    Details
    ISSN: 1573-9139
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Investigations of the strength and deformability of four types of zirconia-base ceramics stabilized by 9% CeO2 (9Ce — TZP) and having different grain sizes (from 1.4 to 3.0 µm) are described. Under mechanical loads these materials exhibit “avalanche” formation of wide transformation zones. A correlation is established between the special features of the formation of such zones, the deformability of specimens, the the acoustic emission in them, and the grain composition of the material.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02226979
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  • 4
    Electronic Resource
    Electronic Resource
    Problem of evaluating the crack resistance in ceramics of Si3N4 and ZrO2 (1996)
    Springer
    Refractories and industrial ceramics 37 (1996), S. 21-26 
    Details
    ISSN: 1573-9139
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The mechanical behavior of silicon nitride and zirconium dioxide ceramics is investigated in a wide temperature range. Much attention is paid to crack resistance under the conditions of the ambient. Data obtained by different methods used for evaluating crack resistance are analyzed, and it is shown that the best results have been obtained in tests in which the concentrator was an indentation of a Vickers pyramid. The analysis was conducted using fractographic investigations of the materials and data of tests of a model material of zirconium dioxide.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02230459
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  • 5
    Electronic Resource
    Electronic Resource
    Crack resistance and other characteristics of ceramics of partially stabilized zirconia with an iron oxide additive (1996)
    Springer
    Refractories and industrial ceramics 37 (1996), S. 35-42 
    Details
    ISSN: 1573-9139
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The strength, toughness, hardness, and crack resistance of ceramics based on zirconia stabilized by yttrium oxide and having iron oxide as a reinforcing component are investigated. Certain features of this material are studied in detail at low and high temperatures. It is established that the ultimate strength in three-point bending is 977 MPa, and the critical coefficient of stress intensityK Ic for a notched beam can attain 16.7 MPa · m1/2. Different testing methods are used and analyzed in the investigation of crack resistance. For example, it is shown that in bending a beam indented under a load of 500 N the value ofK Ic at room temperature is 9.5 MPa · m1/2 and after cooling to − 140°CK Ic is 12.3 MPa · m1/2. For this testing method the dependence ofK Ic on the length of a radial crackc av is established. The results are analyzed with the use of additional data and a fractographic investigation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02230462
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  • 6
    Electronic Resource
    Electronic Resource
    Ceramics based on partially stabilized zirconium dioxide (1990)
    Springer
    Refractories and industrial ceramics 31 (1990), S. 265-268 
    Details
    ISSN: 1573-9139
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01281649
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  • 7
    Electronic Resource
    Electronic Resource
    Strength and crack resistance of zirconium dioxide crystals containing yttrium and terbium oxides (1993)
    Springer
    Refractories and industrial ceramics 34 (1993), S. 303-312 
    Details
    ISSN: 1573-9139
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Conclusions We studied the mechanical behavior of the partially stabilized (with yttrium oxide) zirconium dioxide crystals in which a small quantity of terbium oxide was introduced as an additive. The obtained data indicate the suitability of this material for practical applications. The effect of heat treatment on the physical and mechanical properties of such materials was revealed. It was established that on cooling up to −150°C, their strength and thermal shock resistance are improved. The lack of correspondence between the values of the crack resistance determined according to the methods of bend testing and indentation was established. The existence of a significant barrier to fracture was observed. The two possible types of surfaces of the crystals under consideration were revealed and the relationship between the structure of these surfaces (and, also, the near-surface layers adjoining them) and the resistance to fracture was established.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01293237
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  • 8
    Electronic Resource
    Electronic Resource
    Deformation and fracture of zirconia ceramics stabilized by CeO2. II. Crack resistance (1995)
    Springer
    Refractories and industrial ceramics 36 (1995), S. 78-81 
    Details
    ISSN: 1573-9139
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Investigations of crack resistance of four types of zirconia-base ceramics stabilized by 9% CeO2 are described. In three types of ceramics cracks develop against the background of the formation of a wide zone of transformation transitions, whose size decreases with decrease in the grain size of the materials. In the ceramics with the finest grain composition (1.14 µm) such a zone is absent. The measured results are highly divergent as a function of the method used for estimating the length of the cracks, namely, visual examination and determining the compliance of the specimens. It is assumed that the divergence can be attributable to the presence of a zone of transformation transitions at the tip of a crack and along it.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02307366
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  • 9
    Electronic Resource
    Electronic Resource
    Evaluation of the heat resistance of new cordierite-base materials (1986)
    Springer
    Refractories and industrial ceramics 27 (1986), S. 194-197 
    Details
    ISSN: 1573-9139
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Conclusions The results of the comparative evaluation of the heat resistance of the chamotte-cordierite and corundum-cordierite materials developed make it possible to conclude that they possess significant resistance to thermal failure and may be used in structures with sharp temperature differentials. The structure of the material and also the phase transformations in the high-alumina area of the MgO-Al2O3-SiO2 system have the primary influence on the character of failure and the resistance to the action of a failure crack.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01387544
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  • 10
    Electronic Resource
    Electronic Resource
    Strength of corundum concretes (1986)
    Springer
    Refractories and industrial ceramics 27 (1986), S. 311-317 
    Details
    ISSN: 1573-9139
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Conclusions Studies were made of the strength properties of corundum concretes containing a hydraulic bond, and an assessment was made of bending strength in relation to the heat-treatment temperature. It is shown that the concretes investigated belong to nonlinearly deformable materials. We determined the true strength of the concretes, which with rise in temperature increases; the strongest are concretes with a bond from hydraulically setting cement — Talum cement. We determined the maximum bending deformation of the concretes. It is shown that the lower the elastic deformation shown by the refractory material before failure then the less catastrophically will the destruction occur. We determined the densities of the full energy of deformation and the elastic energy at temperatures of 120, 1400, and 1750°C. It was established that concretes characterized by maximum strength possess the greatest stock of densities of full and elastic energy. On the basis of the deformation diagrams obtained for nonlinear-elastic concretes we determined the magnitudes of static and dynamic elasticity moduli. The strongest concretes are characterized by the maximum modulus values.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01386675
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