Zinc and manganese borates and borosilicates were prepared and investigated. Binary ZnO-B2O3 and Mn0-B2O3 melts show similar stable phase separation below 50 mol% ZnO or MnO. Two layers were separated in the melts. The upper layer was nearly pure B2O3 and contained crystals. The lower layer was zinc or manganese borate with around 50 mol% ZnO or MnO. Melts of ternary systems with SiO2 were separated into SiO2 rich and zinc or manganese rich phases. The addition of Na2O decreases phase separation. Compositions with more than 50 mol% ZnO provided clear homogeneous glass samples. Mn~(2+) was substituted for Zn~(2+) in glasses and crystals, with a coordination number from 6 to 4, and a variation of Mn~(2+) photoluminescence from orange-red to yellow-green depending on local structure. A drastic change of luminescence was detected when the glass was transformed to a glass ceramic by thermal treatment. Adding Eu2O3 or Tb2O3 to zinc borates provides strong orange-red (Eu~(3+)) or green (Tb~(3+)) luminescence. In phase separated samples, Mn~(2+), Eu~(3+) and Tb~(3+) were only accumulated in the zinc borate and not in the B2O3 phase. The large Eu~(3+) and Tb~(3+) ions could not substitute for Zn~(2+) in the crystal phases.
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机译：制备并研究了锌，硼酸锰和硼硅酸盐。二元ZnO-B2O3和Mn0-B2O3熔体在50 mol％ZnO或MnO以下显示出相似的稳定相分离。在熔体中分离出两层。上层几乎是纯B 2 O 3并含有晶体。下层是具有约50mol％的ZnO或MnO的锌或硼酸锰。含SiO2的三元体系熔体分为富SiO2相和富锌或富锰相。 Na 2 O的添加减少了相分离。 ZnO含量超过50 mol％的组合物可提供透明均匀的玻璃样品。 Mn〜（2+）取代了玻璃和晶体中的Zn〜（2+），配位数为6至4，并且Mn〜（2+）的光致发光从橙红色到黄绿色变化，具体取决于局部结构。当通过热处理将玻璃转变成玻璃陶瓷时，检测到发光的剧烈变化。向硼酸锌中添加Eu2O3或Tb2O3可提供强烈的橙红色（Eu〜（3+））或绿色（Tb〜（3+））发光。在相分离的样品中，Mn〜（2 +），Eu〜（3+）和Tb〜（3+）仅累积在硼酸锌中，而不在B2O3相中。大的Eu〜（3+）和Tb〜（3+）离子在晶相中不能替代Zn〜（2+）。
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