Deposition and Dispersion of Nanoparticles in Glasses and Slags for Photonic Materials

光子材料用玻璃和炉渣中纳米颗粒的沉积和分散

基本信息

  • 批准号:
    11305055
  • 负责人:
  • 金额:
    $ 14.89万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (A)
  • 财政年份:
    1999
  • 资助国家:
    日本
  • 起止时间:
    1999 至 2001
  • 项目状态:
    已结题

项目摘要

The influence of YF_3 and BeF_2 on vacuum ultraviolet (VUV) transmission spectra and refractive indexes of aluminum fluoroberyllate glasses was investigated. The MgF_2-CaF_2-SrF_2-AlF_3 containing 20 mol % BeF_2 glass composition exhibited the shortest wavelength of UV absorption edge (〜147 nm), and the highest transmittance at 157 nm (60 % for 2 mm sample thickness). In order to predict for the refractive indexes of fluoride glasses, we presented compositional parameter of fluoride based on our measured data.Extended X-ray absorption fine structure (EXAFS) measurements have been performed on Er^<3+> and Yb^<3+> in oxide glasses in order to investigate the local structure surrounding Er^<3+> and Yb^<3+>. We classified the local structures surrounding rare earth ions in oxide glasses into two types : the former and the latter are interstitial and substitutive types, respectively. The relationship between the spontaneous emission probability for Er^<+3> : I_<13/2> →^4I_<15/2> and Yb^<3+> … More : ^2F_<5/2> →^2F_<7/2> transitions and their local structures in oxide glasses is discussed in terms of these two types.The mechanical and thermal properties of oxide glasses were investigated. To predict the Young's moduli of the oxide glasses, empirical compositional parameters G_i and V_i were obtained, where G_i is the dissociation energy and V_i the packing density parameters of single-component oxide. Taking the network structures of phosphate and tellurite glasses into account, the G_i were modified. The results revealed that the calculated values using our proposed parameter were in good agreement with measured values all through the oxide glasses. The relationship between heat capacity and chemical composition was discussed in terms of the Debye model. We found that heat capacities of all the samples studied here scaled with the molar heat capacity at the Debye temperature have a similar magnitude and temperature dependence. Based on this observation, we propose an empirical equation which is composed of separate contributions of the compositional and temperature dependence of the heat capacity.Phosphate glasses containing metallic copper nanoparticles were prepared by melt-quenching and post heat treatment method. The time-temperature-deposition (TTD) diagram for the glass dispersed with metallic copper nanoparticles was constructed based on the particle size and dispersion of metallic copper nanoparticles in phosphate glasses. A large amount of mono-dispersed metallic copper nanoparticles with a narrow size-distribution deposited in the 50BaO-50P_2O_5+6Cu_2O+6SnO+2Sb_2O_3 (mol %) glass samples heated below the glass transition temperature. In order to control the size, size-distribution, concentration, and dispersion of metallic copper nanoparticles in the glass, we discussed their deposition and growth mechanisms in terms of the redox reactions between Cu^+ ions and reducing oxides, i.e. SnO and Sb_2O_3, and the distribution of Cu^+, Sn^<2+>, and Sb^<3+> ions. Less
研究了YF_3和BeF_2对氟酰基酸铝玻璃真空紫外透射光谱和折射率的影响。含有20 mol % BeF_2玻璃的MgF_2-CaF_2-SrF_2-AlF_3的紫外吸收边波长最短(~ 147 nm),透射率最高(157 nm),样品厚度为2 mm时透射率为60%。为了预测含氟玻璃的折射率,我们根据实测数据给出了含氟玻璃的组成参数。为了研究Er^<3+>和Yb^<3+>周围的局部结构,对氧化玻璃中的Er^<3+>和Yb^<3+>进行了扩展x射线吸收精细结构(EXAFS)测量。我们将氧化玻璃中稀土离子周围的局部结构分为两种类型:前者为间隙型,后者为取代型。根据这两种类型讨论了氧化玻璃中Er^<+3>: I_<13/2>→^4I_<15/2>和Yb^<3+> . More: ^2F_<5/2>→^2F_<7/2>跃迁的自发发射概率与其局部结构的关系。研究了氧化玻璃的力学性能和热性能。为了预测氧化玻璃的杨氏模量,得到了经验成分参数G_i和V_i,其中G_i为解离能,V_i为单组分氧化物的堆积密度参数。考虑到磷酸盐和碲酸盐玻璃的网状结构,对G_i进行了改性。结果表明,用我们提出的参数计算的值与通过氧化玻璃的测量值吻合得很好。用德拜模型讨论了热容与化学成分的关系。我们发现,本文研究的所有样品的热容与德拜温度下的摩尔热容有相似的大小和温度依赖性。基于这一观察,我们提出了一个由热容的组分依赖和温度依赖的单独贡献组成的经验方程。采用熔淬后热处理法制备了含金属铜纳米颗粒的磷酸盐玻璃。基于金属铜纳米颗粒在磷酸盐玻璃中的粒径和分散性,构建了金属铜纳米颗粒分散玻璃的时间-温度-沉积(TTD)图。在玻璃化转变温度以下加热的50BaO-50P_2O_5+6Cu_2O+6SnO+2Sb_2O_3 (mol %)玻璃样品中沉积了大量单分散的金属铜纳米颗粒,且尺寸分布窄。为了控制金属铜纳米粒子在玻璃中的尺寸、分布、浓度和分散,我们从Cu^+离子与还原性氧化物SnO和Sb_2O_3的氧化还原反应以及Cu^+、Sn^<2+>和Sb^<3+>离子的分布等方面讨论了金属铜纳米粒子在玻璃中的沉积和生长机理。少

项目成果

期刊论文数量(51)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
T.Murata Y.Moriyama,and K.Morinaga: "Relationship between the local structure and spontaneous emission probability of Er^<3+> in silicate, borate, phosphate glasses"Science and Technology of Advanced Materials. 1. 139-145 (2000)
T.Murata Y.Moriyama和K.Morinaga:“硅酸盐、硼酸盐、磷酸盐玻璃中Er^<3>的局部结构与自发发射概率之间的关系”先进材料科学与技术。
  • DOI:
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    0
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D.N.Kim et al.: "Development of new long lasting phosphorescent materials"18^<th> International Japan-Korea Seminar on Ceramics. 573-577 (2001)
D.N.Kim 等:“新型长效磷光材料的开发”第十八届日韩国际陶瓷研讨会。
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    0
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稲葉 誠二: "Heat Capacity of oxide glass measured by AC calorimetry"Journal of Non-Crystalline Solids. (in press). (2002)
Seiji Inaba:“通过交流量热法测量氧化物玻璃的热容”,《非晶固体杂志》(2002 年出版)。
  • DOI:
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  • 期刊:
  • 影响因子:
    0
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  • 通讯作者:
S. Fujino, T. Murata, and K. Morinaga: "Properties of low melting SnO-SnCl_2-P_2O_5 glasses"International Symposium on Radiation Safety Management. (2001)
S. Fujino、T. Murata 和 K. Morinaga:“低熔点 SnO-SnCl_2-P_2O_5 玻璃的性能”国际辐射安全管理研讨会。
  • DOI:
  • 发表时间:
  • 期刊:
  • 影响因子:
    0
  • 作者:
  • 通讯作者:
森永 建次: "材料プロセッシングの歴史と課題"金属. 71. 1233-1240 (2001)
Kenji Morinaga:“材料加工的历史和问题”金属。71. 1233-1240 (2001)
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    0
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MORINAGA Kenji其他文献

MORINAGA Kenji的其他文献

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{{ truncateString('MORINAGA Kenji', 18)}}的其他基金

The optical properties and local structure of trace elements in glasses
玻璃中微量元素的光学性质和局部结构
  • 批准号:
    07405056
  • 财政年份:
    1995
  • 资助金额:
    $ 14.89万
  • 项目类别:
    Grant-in-Aid for Scientific Research (A)
A Study on Non-Equilibrium Phase diagrams for Glass Forming Oxide Systems
玻璃形成氧化物体系非平衡相图的研究
  • 批准号:
    05452299
  • 财政年份:
    1993
  • 资助金额:
    $ 14.89万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (B)
PHYSICAL PROPERTIES AND STRUCTURE OF OXYFLUORIDE MELTS
氟氧化物熔体的物理性质和结构
  • 批准号:
    03650541
  • 财政年份:
    1991
  • 资助金额:
    $ 14.89万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (C)
Study in Stability of Dispersion Melts at a High Temperature.
高温下分散体熔体稳定性研究。
  • 批准号:
    62550490
  • 财政年份:
    1987
  • 资助金额:
    $ 14.89万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (C)
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