Abstract
Samples of 5% Sm:Sr2B16O26 were prepared by air firing of coprecipitates at 650 °C. The Sr2B16O26 system was identified by powder-pattern X-ray diffraction. Along with the formation of the strontium borate matrix, the included samarium was found to be reduced to the divalent state. The emission patterns exhibited by divalent samarium incorporated into Sr2B16O26 indicate a very low samarium site symmetry. Further firing of the Sm:Sr2B16O26 sample at higher temperatures resulted in the decomposition of the material and emission features consistent with Sm:SrB4O7.
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