Results 171 to 180 of about 38,396 (204)
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Thin film MgAl2O4: Mn spinel phosphor
Thin Solid Films, 1992Abstract Thin films of MgAl 2 O 4 : Mn were prepared by electron gun evaporation. Films of 4 μm thickness on quartz substrate were characterized by X-ray diffraction and optical microscopy. The effect of annealing was studied, and cathodoluminescence yielded the expected green emission at 520 nm.
N. Dalacu +3 more
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The nature of Cr(III) luminescence in MgAl2O4 spinel
Journal of Luminescence, 1988Abstract The broad-band emission of Cr(III) in the MgAl2O4 synthetic spinel was observed. Following the absorption measurements and excitation wavelength dependence of luminescence spectra the nature of luminescence is combined with two different Cr(III) sites in this crystal.
W. Strȩk +2 more
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Synthesis of MgAl2O4 Spinel in a Thermal Plasma
Inorganic Materials, 2023V. V. Shekhovtsov +2 more
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Interfaces in Transparent Polycrystalline MgAl2O4 Spinel
2019Transparent ceramics have unique properties enabling applications no other materials can and magnesium aluminate spinel has been at the forefront of their development. However, the processing-property relationships of transparent spinel fabrication, in particular interfaces, which often govern densification and influence final properties, remain poorly
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Radiation-induced electrical conductivity in MgAl2O4 spinel
Journal of Nuclear Materials, 1991Abstract The dc electrical conductivity of high purity, polycrystalline MgAl2O4 spinel of 99.5% theoretical density has been measured during irradiation by 18 MeV protons at reactor relevant ionization dose rates. The radiation-induced conductivity (RIC) at 200°C varied in a slightly sub-linear manner with dose rate. At temperatures between 250–350°C
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Mass spectrometric study of the evaporation of MgAl2O4 spinel
Russian Journal of Physical Chemistry A, 2017The evaporation of MgAl2O4 spinel is studied via high-temperature Knudsen effusion mass spectrometry in the temperature range of 1850–2250 K. In the gas phase, molecular components typical of the simple oxides in the spinel and traces of gaseous complex oxide MgAlO are identified above the samples. The resulting values of the partial vapor pressures of
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Radiation-induced cation disorder in the spinel MgAl2O4
Journal of Nuclear Materials, 2006Abstract There is some controversy in the literature concerning the nature of radiation-induced cation disorder and phase transformation in the spinel MgAl2O4. Attempts have been made to interpret the experimental data either in terms of a pure inversion involving the exchange between the Mg and Al atoms, or the disordering of the cation sublattice ...
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