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  • 1
    Monograph available for loan
    Monograph available for loan
    Tokyo : Terra Scientific Publ. Co. [u.a.]
    Associated volumes
    Call number: 5/M 93.1009
    In: Geophysical monograph
    Type of Medium: Monograph available for loan
    Pages: 530 S.
    ISBN: 0875900348
    Series Statement: Geophysical monograph 67
    Classification:
    Petrology, Petrography
    Language: English
    Location: Reading room
    Branch Library: GFZ Library
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  • 2
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 179-181 (Feb. 1995), p. 647-652 
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 77 (1995), S. 5060-5068 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Inclined-mirror Hugoniot measurements of yttria (Y2O3) -doped (9.6 and 8.0 mol %) cubic zirconia single crystal and polycrystal were performed in the pressure range up to 120 GPa to study yielding and phase transition. The Hugoniot-elastic limit (HEL) stresses parallel to the 〈100〉 and 〈110〉 axes were approximately 14 and 25 GPa, respectively, while that of the polycrystal was approximately 13 GPa. Above the HELs the Hugoniot data parallel toward the 〈100〉 and 〈110〉 axes converged on each other, and showed large relief to an isotropic compression state, while those of the polycrystal preserved a considerably larger shear strength. A phase transformation took place at approximately 53 GPa (both 〈100〉 and 〈110〉 axis directions), and was completed by about 70 GPa. The phase transition pressure was much higher than those of the monoclinic- or tetragonal-orthorhombic II phase transitions under static compression. The shock velocity Us versus particle velocity Up relation of the final phase of the single crystal was given by Us=2.19+2.35Up km/s. The equation of state of the final phase was analyzed by using a program based on the Debye model, the Mie–Grüneisen equation, and the Birch–Murnaghan equation. The volume change between the cubic phase and the final phase at zero pressure was estimated to be 20%, which was larger than that expected for the cubic-orthorhombic II transition. The bulk moduli of the final phase at zero pressure were estimated to be 510 GPa. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 77 (1995), S. 5069-5076 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Shock-wave measurement and shock-compression recovery experiments of yttria (Y2O3) -doped (3.0 mol %) tetragonal zirconia in the pressure range up to 125 GPa were performed to study the anomalous shock compression and release behaviors. The minute three-wave structure with the transition points of 15–17 and 33–35 GPa was observed also by the inclined-mirror method, which is consistent with the VISAR (velocity interferometer system for any reflector) data. The shock velocities of the second wave were so fast that the first transition could not be identified as a normal elastoplastic transition. The shock velocity Us versus particle velocity Up relation of the final wave was given by Us=2.71+2.39Up km/s. The equation of state of the final phase was analyzed by using a program based on the Debye model, the Mie–Grüneisen equation, and the Birch–Marnaghan equation. The volume change between the tetragonal phase and the final phase at zero pressure was estimated to be 18%, which was larger than that expected for the tetragonal-orthorhombic II transition. The bulk moduli of the final phase at zero pressure was estimated to be 550 GPa. An instability was observed at release in the stress history of 28 GPa in peak stress. A certain amount of the monoclinic phase was observed at fractured surfaces of the recovered specimens from the shock compressions of below and above the first transition point (15–17 GPa) by Raman spectrum and transmission electron microscope observations. This might be related to the observed anomalous shock compression and release behaviors. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 59 (1986), S. 748-756 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The electrical response of BaTiO3 ceramics to the strong shock compression well above the Hugoniot-elastic limit or ferroelectric-paraelectric transition pressure is studied to separate and identify the causes of shock-induced electrical response of ferroelectric materials. Measurements of voltage and current histories under shock compression are performed by using poled and nonpoled specimens, assemblies of both parallel and normal modes, and explosive systems. In order to consider the effects due to elastic-plastic deformation and shock-induced conduction, the Hugoniot compression curve and electrical conductivities are also measured by using nonpoled specimens. The Hugoniot-elastic limit stress is determined to be 4.8–6.4 GPa for porous specimens with 1.7–4.4% porosity, and the shock velocity (Us) and particle velocity (Up) Hugoniot can be closely described as Us =4.29+1.66Up km/s in the plastic region. The electrical conductivity values at 12- and 29-GPa peak stresses are measured to be 2.1×10−3 and 4.8×10−2 S/cm, respectively. Both voltage histories for the parallel and normal modes at 12- and 29-GPa peak stresses show similarly increasing signals with time. Although the signals of the 29-GPa peak stress show large internal losses due to shock-induced conduction, these signals are reasonably analyzed by a simple analytical model based on the ferroelectric-paraelectric transition. The relative dielectric constant values under shock compression calculated by the model from the measured voltage histories are in the range (5–71)×103, which is consistent with those measured under static compression. Current histories for the parallel and normal modes at the 12-GPa peak stress show a pulse-shaped signal and a constant-current-shaped signal, respectively, whose total integrated charges are in agreement with those due to the initial remanent polarization, with the losses less than 20%. It is concluded that the measured electrical responses of poled BaTiO3 ceramics to the shock compression well above the Hugoniot-elastic limit are caused not by piezoelectricity, but chiefly by the shock-induced ferroelectric-paraelectric transition, in this study.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 58 (1985), S. 2548-2552 
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Shock compression measurements of lithium niobate single crystals are carried out up to 121 GPa using the gun method. Hugoniot elastic limits are found to be 2.4 and 6.6 GPa with the shock propagation direction along [0001] and [112¯0], respectively, reflecting a remarkable elastic anisotropy. A phase transition accompanied by a discontinuous volume decrease is induced at the shock pressure of 32.6±0.6 GPa. The zero-pressure volume of the high-pressure phase is estimated to be smaller by 20.5% than that of the low-pressure-phase lithium niobate. The observed large volume decrease strongly suggests considerable change in the bond character with the phase tranformation.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 57 (1990), S. 813-815 
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Shock-loading experiments were done for as-prepared nonsuperconducting specimens of Tl2Ba2CuO6. The shocked specimens which were encased in the stainless-steel container with small holes exhibited a superconductivity of about Tc−75 K at 18 GPa, indicating that the overdoping state was released by oxygen loss during shock-loading. The x-ray powder diffraction pattern of the recovered specimens after shock-loading showed broadening of diffraction lines and a distortion to the orthorhombic symmetry. A transmission electron microscope image of the shocked specimen in which the orthorhombic distortion was observed in the x-ray powder diffraction patterns showed a twin structure.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Westerville, Ohio : American Ceramics Society
    Journal of the American Ceramic Society 84 (2001), S. 0 
    ISSN: 1551-2916
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Thin films of yttrium aluminum garnet (YAG, Y3Al5O12) and yttrium iron garnet (YIG, Y3Fe5O12) were synthesized on single-crystal Al2O3 substrates by a modification of spray pyrolysis using a high-temperature inductively coupled plasma at atmospheric pressure (spray–ICP technique). Using this technique, films could be grown at faster rates (0.12 μm/min for YAG and 0.10 μm/min for YIG) than using chemical vapor deposition (0.005–0.008 μm/min for YAG) or sputtering (0.003–0.005 μm/min for YIG). The films were dense and revealed a preferred orientation of (211). The growth of YIG was accompanied by coprecipitation of α-Fe2O3. The coprecipitation, however, could be largely suppressed by preliminary formation of a Y2O3 layer on the substrate.
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Journal of materials science 6 (1987), S. 97-99 
    ISSN: 1573-4811
    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
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  • 10
    ISSN: 1573-4811
    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
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