Raman Spectroscopic Study on the Structure of Oxide Melts containing Fluoride
含氟氧化物熔体结构的拉曼光谱研究
基本信息
- 批准号:60550467
- 负责人:
- 金额:$ 1.15万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for General Scientific Research (C)
- 财政年份:1985
- 资助国家:日本
- 起止时间:1985 至 1986
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
In order to elucidate the structure of oxide melts containing fluorine, the quantitative informations are necessary concerning the structure of silicates and aluminates. In this study, at first, a Raman spectral study has been carried out on the structure of the glassy binary silicates containing alkali or alkaline earth oxides and ternary silicates with <Al_2O_3> or <TiO_2> , where an argon-ion laser beam of 4880 A has been used as an exciting light. The obtained Raman spectra were deconvoluted with the Gaussian function and the fraction of each silicate anion was evaluated relating to the number of non-bridging oxygens per each silicon atom. And the effects of anions on the Si-O bondings and behavior of <Al^(3+)> and <Ti^(4+)> were discussed. On the basis of the results described above, Raman measurements of the glassy CaO- <SiO_2> - <CaF_2> and CaO- <Al_2O_3> - <CaF_2> samples melted in the closed crucible and deconvolution of the spectra have been made and the following conclusions were obtained.(1) <CaF_2> in the CaO- <SiO_2> binary basic slags behaves as a diluent and diluent and does not have any effect on the structure of silicates, in which the basicity is larger than unity. On the other hand, a part of <CaF_2> added breaks the silicate networks at the acid slags. (2) The fraction of <CaF_2> which acts as a modifier increases with decrease in the basicity and three dimensional network is broken to chains of silicates. (3) The existence of the silicon-fluorine bonding in the CaO- <SiO_2> - <CaF_2> system with the basicity below 1 was confirmed, and the Raman band caused by the Si-F bonding was asigned. (4) Addition of <CaF_2> to the CaO- <Al_2O_3> binary slags has no effects on the structure of aluminates. <CaF_2> behaves only as a diluent to the CaO- <Al_2O_3> system.
为了阐明含氟氧化物熔体的结构,需要有关硅酸盐和铝酸盐结构的定量信息。本研究首先利用4880a氩离子激光束作为激发光,对含碱或碱土氧化物的玻态二元硅酸盐和<Al_2O_3>或<TiO_2>的三元硅酸盐的结构进行了拉曼光谱研究。用高斯函数对得到的拉曼光谱进行反卷积,并根据每个硅原子中非桥氧的数目来计算每种硅酸阴离子的分数。讨论了阴离子对<Al^(3+)>和<Ti^(4+)>的Si-O键和行为的影响。在此基础上,对闭合坩埚中熔化的CaO- <SiO_2> - <CaF_2>和CaO- <Al_2O_3> - <CaF_2>玻璃样进行了拉曼测量,并对光谱进行了反卷积,得到了以下结论:(1) <CaF_2>在CaO- <SiO_2>二元碱性渣中表现为稀释剂和稀释剂,对碱度大于单位的硅酸盐的结构没有任何影响。另一方面,部分<CaF_2>的加入破坏了酸渣处的硅酸盐网络。(2) <CaF_2>作为改性剂的比例随着碱度的降低而增加,三维网络断裂为硅酸盐链。(3)在碱度低于1的CaO- <SiO_2> - <CaF_2>体系中证实了硅氟键的存在,并确定了Si-F键形成的拉曼带。(4)在CaO- Al_2O_3 - >二元渣中添加<CaF_2>对铝酸盐的结构没有影响。<CaF_2>仅作为CaO- <Al_2O_3>体系的稀释剂。
项目成果
期刊论文数量(2)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Yasutaka Iguchi, Youichi Funaoka, Yuichiro Nishina and Shiro Ban-ya: "Raman Spectroscopic Study on the Structure of Oxide Melts containing Fluoride" Journal of the Japan Institute of Metals. 52. (1988)
Yasutaka Iguchi、Youichi Funaoka、Yuichiro Nishina 和 Shiro Ban-ya:“含氟化物的氧化物熔体结构的拉曼光谱研究”日本金属学会杂志。
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IGUCHI Yasutaka其他文献
IGUCHI Yasutaka的其他文献
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Development of titanium wire ropes for implantable stimulation electrode and their evaluation
植入式刺激电极用钛钢丝绳的研制及其评价
- 批准号:
16360342 - 财政年份:2004
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$ 1.15万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Abrasion and ion elution of implantable metallic electrode in bending-rotating fatigue testing
弯曲旋转疲劳试验中植入式金属电极的磨损和离子洗脱
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14350365 - 财政年份:2002
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Grant-in-Aid for Scientific Research (B)
Development and Evaluation of Alloys for the Electrodes for Functional Electrical Stimulation to Appropriate for the Long Term Implantation
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- 批准号:
10450251 - 财政年份:1998
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$ 1.15万 - 项目类别:
Grant-in-Aid for Scientific Research (B).
Development of Implantable Electrode for Functional Electrical Stimulation.
用于功能性电刺激的植入式电极的开发。
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06555197 - 财政年份:1994
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Heats of Formation of Complex Compounds (Compounds Semiconductor, New Ceramics)
复杂化合物的生成热(化合物半导体、新型陶瓷)
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62550481 - 财政年份:1987
- 资助金额:
$ 1.15万 - 项目类别:
Grant-in-Aid for General Scientific Research (C)
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