Development of Equipment Generating Ultra-fine particle for Functionally Gradient Materials.
Development of Equipment Generating Ultra-fine particle for Functionally Gradient Materials.
批准号:
02453110
负责人:
HONDA Takuya
金额:
$4.42万
依托单位国家:
日本
项目类别:
Grant-in-Aid for General Scientific Research (B)
财政年份:
1990
资助国家:
日本
项目状态:
已结题
起止时间:
1990 至 1991
中文摘要
1990年,对超细粒子(UFP)的形成进行了两项研究。一种是在直流电弧阳极上对金属(Ti,Al)衬底进行处理,形成UFP。研究了以氮气和氢气为反应气体的两种情况下,等离子体支撑气体的反应产物和形成条件。二是射频Ar等离子体和铝粉系统,它与添加到Ar等离子体气体中的氧气发生反应。这是用类似于液滴燃烧的模型进行的。用我们的方法开发功能梯度材料(FGM)存在两个主要问题:UFP的产率低和成分的平滑梯度。1991年,这些主要是关于铝颗粒和Ar/O2射频等离子体流系统的研究。前者是通过对流场的数值求解和超细颗粒粘壁的估算来推测的,并采用了反应管设计来获得较高的产率。此外,当使用氧气作为鞘气体时,鞘气体沿反应管壁流动,并获得较高的产率。后者,特别是金属与陶瓷的比例(这里是铝与氧化铝的比例)是通过调整添加到等离子体和/或鞘气体中的氧气的流量来解决的。生成的氧化铝有α-氧化铝、伽马-氧化铝、三角洲氧化铝、草酸-氧化铝。这些成分在大多数情况下是相当恒定的。这一施工控制有待今后进一步解决。
英文摘要
In 1990, two studies were constructed for formation of ultra-fine particle (UFP). One was the formation of UFP with treatment of metal (Ti, AI) substrate on the anode of a dc arc discharge. The products and conditions of the formation were studied in two cases adding nitrogen or hydrogen as a reactive gas to the plasma supporting argon gas. Two was rf argon plasma and al-uminum powder system which reacts with oxygen added to the argon plasma gas. This was carried out numerically with the model similar to a combustion of liquid droplet.There are two major problems in the development of functionally gradient material (FGM) with our method ; low yield of UFP and smooth gradient of composition. In 1991, these were mostly examined about the system of aluminum particle and argon/oxygen rf plasma flow. The former was speculated by numerical solution about the flow fields and estimation of ultra-fine particle sticking to wall, and a reaction tube design was adopted for a high yield. Moreover, a sheath gas flew along the reaction tube wall and got a high yield when oxygen gas was used as a sheath gas. The latter, particularly metal to ceramics ratio (here, aluminum to alumina) was solved by adjustment of the flow rate of oxygen addition to the plasma and/or sheath gases. Produced alumina were alpha, gamma, delta, rheta-alumina. These composition was fairly constant in the most cases. This construction control still remain to be solved in future.
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Takayuki WATANABE, Takuya HONDA, and Atsushi KANAZAWA: " "Characteristics in RF Induced Plasmas Added with Variout Reactive Gas"" J. of High Temp. Soc.17(2). 71-81 (1991)
Takayuki WATANABE、Takuya HONDA 和 Atsushi KANAZAWA:“添加了 Variout 反应气体的射频感应等离子体的特性”J. of High Temp。
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Takayuki WATANABE, Ikuo KURIBAYASHI, Takuya HONDA, and Atsushi KANZAWA: " "Deformation and Solidification of a Droplet on a Cold Substrate"" Chem. Eng. Sci.47. (1992)
Takayuki WATANABE、Ikuo KURIBAYASHI、Takuya HONDA 和 Atsushi KANZAWA:““冷基板上液滴的变形和凝固””Chem。
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渡辺 隆行: "各種の反応性気体を混入した高周波誘導熱プラズマの特性" 高温学会誌. 17. 71-81 (1991)
Takayuki Watanabe:“高频感应热等离子体与各种反应气体混合的特性”《高温科学学会杂志》17. 71-81 (1991)。
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Takayuki WATANABE,Takuya HONDA,Atsushi KANZAWA: "Nonequilibrium of Dissociation and Recombination in R.F.Thermal Plasmas with Diatomic Gas" Proceedings of JapanーChinaーKorea Trilateral Symposium on Plasma Chemistry. 1. 83-86 (1990)
Takayuki WATANABE、Takuya HONDA、Atsushi KANZAWA:“R.F.热等离子体中双原子气体的解离和重组的非平衡”日中韩等离子体化学三边研讨会论文集 1. 83-86 (1990)。
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Takayuki WATANABE: "Deformation and Solidification of a Droplet on a Cold Substrote" Chem.Eng.Sci.47. (1992)
Takayuki WATANABE:“冷基板上液滴的变形和凝固”Chem.Eng.Sci.47。
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共 20 条
Progress of Globalization in Higher Education
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批准号:17530610
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项目类别:Grant-in-Aid for Scientific Research (C)
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资助金额:$1.86万
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财政年份:2005
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负责人:HONDA Takuya
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依托单位:
A New Reactive Sputtering Using Square Wave Reactant Gas Flow
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批准号:09650729
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项目类别:Grant-in-Aid for Scientific Research (C)
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资助金额:$2.24万
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财政年份:1997
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负责人:HONDA Takuya
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依托单位:
国内基金
海外基金
Simulation and certification of the ground state of many-body systems on quantum simulators
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资助金额:40万元
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批准年份:2020
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负责人:Abolfazl Bayat
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依托单位: