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rare earth相关的网络例句

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In this project, the selection criteria of matrix and reinforcement for obtaining composites with high strength and toughness are determined. The as-cast and aged microstructures of composites reinforced with particles of different strength are observed, and their metallurgical conditions and stabilization mechanisms are analyzed. The aging precipitation behaviors and mechanisms are studied. Some characteristics of nano-materials (micro-distortion areas) are found in 150nm- Al2O3p/Al composites and their formation mechanisms are expatiated. The "flexible" restriction to the deformation of the matrix by low strength AlN particle is observed by in-situ TEM and SEM techniques, and the mechanisms of its resist on cracks propagation and its contribution to composite strength are revealed. The high temperature deformation behaviors of Al2O3p/Al composites are studied. A rare-earth coating is established on sub-micron Al2O3 particles, leading to an improvement in wettability between coated Al2O3 and liquid aluminum and a decrease in infiltration pressure. The strength and ductility of coated particles reinforced composite are also increased. The interfacial characteristics, bonding structures and their formation mechanisms are studied, and the crystal orientation relationships between reinforcement particles and aluminum matrix are investigated. Finally a lighter composite with better balance of strength and damping properties is reinforced with hollow ceramic microballoons of ultra-lower strength.

本项目发现了获得高强度和高韧性复合材料的基体、增强体选择依据;观察了各种强度质点增强复合材料的铸态和时效态微观组织,分析其微观结构形成的金属学条件及稳定性机理,研究了其时效析出规律和时效机制,发现了150nmAl2O3颗粒增强铝基复合材料基体中的纳米材料特征,并解释了其形成机理;利用TEM和SEM动态拉伸技术发现了低强度质点AlN颗粒对变形协调的&柔性强化&机制,揭示了其对裂纹扩展的阻碍作用和对复合材料高强度的贡献;研究了中强度质点的Al2O3颗粒增强铝基复合材料的高温变形行为,并对其进行了稀土界面层设计与制备,改善了颗粒与铝合金之间的界面润湿性,降低了复合材料铸造渗透压力,提高了复合材料的强、韧性;研究了多种复合材料界面结构及形成机理,确定了增强体与基体之间的界面结合机制,分析了复合材料界面处的晶体学位向关系;最后制备了含微孔的中空型陶瓷颗粒增强的特种复合材料,得到了强度和阻尼综合性能较好的轻质复合材料。

X-ray photoelectron spectroscopy was used to analyze the composition of rare earth metal conversion coating.

研究出pH缓冲剂A和辅助添加剂B延长了处理液的使用寿命并提高了转化膜的结合力。

This study investigated effects of compounds of rare earth, LaNi 5 and CeO 2, on properties of cobalt-cemented tungsten carbide, diamond/carbide composite and diamond-tipped tungsten carbide insert for rock drilling under the active, low temperature sintering process which achieved by adding nickel and phosphorus into the mixed powders.

采用添加镍、磷的低温活化烧结工艺,分别用不同含量的稀土化合物LaNi5和CeO2 作为添加剂进行了试验,研究了其对硬质合金、金刚石硬质合金复合材料及由此构成的金刚石硬质合金复合凿岩柱齿性能的影响。

Usage: Widely used in such industries as metallurgy, pharmacies, rare earth reduction, and storage battery, etc.

主要用途:本品广泛应用于钢铁冶炼、稀土还原、医药、蓄电池等行业。

Objective and methods: To study the effect of rare earth elements on cell and tissue cultures of the medicinal plants.

目的与方法:探讨稀土对药用植物细胞组织培养的作用和意义。

The numerical analysis method of temperature field in rare earth electrolysis cell of fluoride system was studied in this paper.

研究了氟化体系稀土电解槽温度场问题的数值模拟分析方法,采用有限元法计算了新的电解槽温度场,其分析结果,为新槽体的开发设计提供了参考依据。

Whether current field , temperature field and flow field are designed reasonably or not are critical for the design of rare earth electrolysis cell, therefore, the study on current field and temperature field is very important.

怎么样设计合理的电场、热场、流场是决定电解槽设计好坏的关键因素,所以,有关电场、热场、流场的研究显得十分重要。

Next, using the multiple elements and multiple properties of ANSYS software , we had carried on the two-dimensional coupled simulation to electric field, the flow field and the temperature field of the optimized 3KA rare earth oxide electrolysis cell of the fluoride salt system.

其次,再利用ANSYS多场耦合的特性对优化的3KA稀土氟盐体系氧化物电解槽的电场、流场和温度场进行二维耦合仿真模拟,模拟结果与实际吻合,进一步确定了模拟优化电解槽设计的正确性,验证了耦合模型的正确性。

There are one and/or two rare earth ionsin each unit cell of RE-Silicalite-I and RE-ZSM-5synthesized by hydrothermal crystallization,which arelocated in the channel of zeolites.

水热晶化法合成的RE-Silicalite-Ⅰ和RE-ZSM-5每单胞中有1~2个稀土离子,主要存在孔道中。

Finally, by using the ANSYS Electrothermal field module in the 10KA drained cathode rare earth electrolysis cell Electrothermal field which was designed in dependently,we had carried on the three-dimensional coupled simulation optimization design in the article.

最后,本文利用ANSYS电热耦合模块对自行设计的10KA底部阴极导流稀土电解槽的电热场进行了三维耦合仿真模拟优化设计。

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