| 1 | 等离子喷涂陶瓷颗粒的扁平化转变机制显示文摘我们之前对热喷涂金属粒子的扁平化转变行为进行了系统研究,并提出了形成机制假设:由于超快速冷却而优先在熔滴底部形成的冷却晶体结构决定着圆饼状熔滴的形成。为了验证这一机制是否适用其他材料,选取了几种具有不同热性能的陶瓷材料来进行对比。采用等离子喷涂技术分别将Al_2O_3、Y_2O_3和YSZ喷涂到AISI304不锈钢基体上,对圆饼状熔滴百分比随基体温度变化规律进行了研究,并对熔滴的横截面形貌也进行了观察。结果表明,在Al_2O_3和Y_2O_3熔滴底部均存在独特的非晶和冷晶结构,说明这些材料中圆饼状熔滴形成机制与金属中的相似。另一方面,在YSZ熔滴中却只有柱状晶结构,故圆饼状颗粒的形成机制假设只是适用于部分材料。 | M.Fukumoto N.Maeda B.Wei D.Suzuki 高丽华(译) | 2017 | 热喷涂技术2017，9，1： | 0 |
| 2 | Benchmark Integral Cross Sections for Electron Impact Excitation of the n=2 States in Helium显示文摘<正> In this paper, we present integral cross sections (ICS) for electron impact excitationof the n= 2 levels in helium in the impact energy range of 23.5 eV to 35 eV. The ICS of each finalstate, 2~3S, 2~1S, 2~3p and 2~1P, has been determined by integration of the angular differential crosssections (DCS) over all of 0° to 180°, where those DCS were obtained from both our previousexperiments and the extrapolation using the convergent close coupling calculation. The presentexperimental ICS for the optically allowed 2~1p transition state are also compared with thoseobtained from the BEf-scaling method. Very good agreement between the experimental andBEf-scaled 2~1P ICSs is generally found in the measured impact energy region. | M.HOSHINO H.KATO D.SUZUKI H.TANAKA I.BRAY D.V.FURSA S.J.BUCKMAN O.INGLFSSON M.J.BRUNGER | 2010 | Plasma Science and Technology2010，12，3： | 0 |
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