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采用金属醇盐法制备了铝酸镁前躯体,并通过高温煅烧得到了纯相铝酸镁粉体,再将其与荧光粉均匀掺杂,通过热压与热等静压相结合的烧结方法得到了铝酸镁荧光透明陶瓷.将得到的铝酸镁荧光透明陶瓷样品进行了XRD分析,当荧光粉的掺杂浓度达到10%(质量分数,下同)时陶瓷样品中含荧光粉相(YAG),进一步增加掺杂浓度至40%,陶瓷样品中的YAG相更加明显.所得铝酸镁荧光陶瓷在可见光区域的透过率大于70%,样品在蓝光波段(460~480nm)有明显的光吸收.将不同荧光粉掺杂浓度的荧光陶瓷样品进行了SEM分析,与纯相铝酸镁透明陶瓷相比,荧光粉的掺杂使最终得到陶瓷的晶粒尺寸变小,且掺杂浓度越高这种变化越明显.

参考文献

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