爆轰法合成铝酸锶铕长余辉发光材料的研究

A study on detonation synthesis of SrAl_2O_4∶Eu,Dy manometer powders

金属硝酸盐中加入适量的添加剂均匀混合后，利用黑索金炸药（RDX）爆轰合成铝酸锶铕（SrAl2O4：Eu^2＋、Dy^2＋）长余辉发光材料的实验研究。通过X射线粉晶衍射仪（XRD）和TEM对爆轰灰及高温处理后的爆轰灰进行测试分析。研究表明：合成出的爆轰灰中含有SrAl2O4相，在空气中经过600℃，1h处理后，合成的SrAl2O4与标准卡JCPDS（No．34-0379）基本一致。粒度主要分布在20～60nm之间，平均粒径约为35nm。经紫外灯照射后，爆轰灰及处理的爆轰灰都能发出浅绿色余辉。

Experiments were carried out to study on detonation synthesis of 5rAl2O4 ： Eu,Dy with the mixture of metal nitrates and some additives by detonating RDX. The average particle size and optical properties of detonation soot and that heated at 600℃, lh have been studied systematically by XRD and TEM. The results indicated that detonation soot shows the SrAl2O4 phase, and SrAl2O4 ： Eu^2＋ , Dy^2＋ can be synthesized when detonation soot was heated at 600℃, lh. And the average particle size of SrAl2O4 ： Eu^2＋ ,Dy^3＋ is （35±15）nm. After excited under UN lights,detonation soot and that heated at 600℃ ,lh can emit pea green light.