| 合成榍石的抗辐照稳定性和热稳定性 |
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| 引用本文： | 窦天军,张朝彬,滕元成,曾冲盛,任雪潭.合成榍石的抗辐照稳定性和热稳定性[J].化学研究与应用,2009,21(11). |
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| 作者姓名： | 窦天军 张朝彬 滕元成 曾冲盛 任雪潭 |
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| 作者单位： | 窦天军,张朝彬(中国工程物理研究院,四川,绵阳,621900);滕元成,曾冲盛,任雪潭(西南科技大学材料科学与工程学院,四川,绵阳,621010) |
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| 摘 要： | 以H2SiO3、CaCO3、TiO2为原料,通过固相反应合成榍石,并对合成的榍石进行热处理和60Co源辐照试验,借助X射线衍射(XRD)、扫描电子显微镜(SEM)、红外光谱(IR)、激光拉曼光谱(LRS)等分析手段,研究合成榍石的抗辐照稳定性和热稳定性.结果表明,辐照累计剂量为5.76×105Gy的60Co源辐照没有造成榍石晶格的辐射损伤,合成的榍石具有良好的抗辐照稳定性;在200℃、400℃、600℃、800℃热处理24h,榍石晶体没有发生物相变化,合成榍石晶体具有良好的热稳定性.
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| 关 键 词： | 榍石 抗辐照稳定性 热稳定性 |
The anti-radiation stability and thermal stability of synthesized sphene |
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| Abstract: | The anti-radiation stability and thermal stability of sphene synthesized by solid-state reaction using CaCO_3 ,TiO_2 and H_2 SiO_3 as raw materials were studied by the heat treatment and irradiation of ~(60)Co and by means of XRD,IR,LRS and SEM analysis as well. The results indicate that the synthesized sphene has good anti-radiation stability and thermal stability. When the cumulative radiation dose of ~(60)Co was 5.76 × 10~5 Gy,it did not result in the lattice damage. The crystal of synthesized sphene has no phase transformation under the heat treatment for 24h at 200℃、400℃、600℃ and 800℃,respectively. |
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| Keywords: | sphene anti-radiation stability thermal durability |
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