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Alumina single crystal

Figure 7. Ionic conductivities for various monovalent (a) and multivalent (b) ions in f) and / " -alumina single crystals in the direction of the conduction plane [4, 19J. Figure 7. Ionic conductivities for various monovalent (a) and multivalent (b) ions in f) and / " -alumina single crystals in the direction of the conduction plane [4, 19J.
Fig. 2.8 Ionic conductivity of Na /8-alumina single crystals. Numbers on the plot represent temperatures in Kelvin. Fig. 2.8 Ionic conductivity of Na /8-alumina single crystals. Numbers on the plot represent temperatures in Kelvin.
Although the conductivity of the trivalent-ion / ""-aluminas is too low for solid electrolyte applications (e g. batteries, sensors), they have potential use in optics, phosphors, and lasers because they can serve as single crystal or powder hosts for the optically active lanthanide ions. For example, Eu +-/3""-alumina emits red luminescence when excited by UV rays. A Nd +-/3""-alumina single crystal shows luminescent... [Pg.1813]

The thermal conductivity of a-alumina single crystals as a function of temperature is given in Table 16 (from [2, 23]). Heat is conducted through a nonmetallic solid by lattice vibrations or phonons. The mean free path of the phonons determines the thermal conductivity and depends on the temperature, phonon-phonon interactions, and scattering from lattice defects in the solid. At temperatures below the low temperature maximum (below about 40°K), the mean free path is mainly determined by the sample size because of phonon scattering from the sample surfaces. Above the maximum, the... [Pg.14]

Suggest an energetically favorable dislocation reaction for the splitting of a unit dislocation into partial dislocations for basal slip in sapphire (a-alumina) single crystals. [Pg.191]

O. Sudre, A. G. Razzell, L. Molliex, and M. Holmquist, Alumina Single-Crystal Fibre Reinforced Alumina Matrix for Combustor Tiles, Ceram. Eng. Sci. Proc., 19 [4] 273—280 (1998). [Pg.417]

YP Transparent YAG ceramics YS YAG single crystal AP Transparent alumina ceramics YS Alumina single crystal... [Pg.227]

Oxygen self-diffusion was studied in alumina single crystals at 1520 to 1750C by using the gas-solid isotope exchange technique. After diffusion annealing, 1 0 profiles were determined using secondary ion mass spectrometry. The results indicated that 2 diffusion mechanisms were involved a bulk diffusion mechanism and a sub-boundary one. The bulk diffusion was described by ... [Pg.189]

ALUMINA (fused) ALUMINA (SINGLE crystal) alumina (sintered) ALUMINA (tabular) CORUNDUM. Alumina Cement. See high-alumina CEMENT. [Pg.8]

See other pages where Alumina single crystal is mentioned: [Pg.21]    [Pg.53]    [Pg.15]    [Pg.175]    [Pg.484]    [Pg.9]    [Pg.5]    [Pg.13]    [Pg.122]    [Pg.8]    [Pg.8]    [Pg.77]    [Pg.293]    [Pg.514]    [Pg.236]   
See also in sourсe #XX -- [ Pg.13 ]



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