金属可分为纯金属与合金两类。
合金与纯金属的区别是什么？
本文对高纯金属铽的制备进行了研究。
纯金属中的原子迁移过程。
大家知道，金属分为两类；纯金属和合金。
Metals are known to be divided into two kinds: simple metals and alloys.
纯金属是在元素周期表中占据特定位置的元素。
Pure metals are elements which come from a particular area of the periodic table.
纯金属钒适用于高温，如X射线的目标和催化剂。
Unalloyed, it is used in high-temperature applications, as a target in X-ray applications, and as a catalyst.
纯金属抛壳，美。
作为纯金属时可镀于其它金属表面，也可作催化剂。
As pure metal, it is used to coat other metals (see plating) and as a catalyst.
扼要阐述了金属材料晶界在纯金属与合金高温氧化中的作用。
This paper explains the role of metallic materials grain boundary in high temperature oxidation behaviour of pure metals and alloys in brief.
本发明涉及一种生产超纯金属以及由其制造的单晶体的方法。
The invention relates to metallurgy and foundry engineering, in particular to producing a monocrystalline structure and to a melt refining associated therewith.
本文以高纯金属钒作为靶材，采用磁控溅射工艺制备氧化钒薄膜。
In this paper, several thin films samples of vanadium oxide were got by high-frequency Magnetron sputter with pure metal vanadium as sputter source.
金属纳米粒子的性能与其结构有关，而纯金属非晶纳米粒子极为罕见。
The Properties of metal nanoparticles are related to the crystal structure. So far pure metal amorphous nanoparticles have yet been found frequently.
研究结果表明，过冷液态纯金属形成廿面体对称的能力弱于过冷液态合金。
Results show that ability of forming Icosahedral symmetry of pure liquid metals is weaker than that of alloys.
用该方程求解的部分纯金属的过冷度同已知的金属凝固过冷度十分接近。
The under-cooling data of some metals calculated by the equation are very close …
很多纯金属用处不大，因为它们它软，很容易生锈，或者还有其他一些缺点。
Many pure metals have little use because they are too soft, rust too easily, or have some other drawbacks. (2002.1)
然后给出了用真空蒸馏法制备高纯金属钪的新工艺，并对其提纯机制作了探讨。
Then the new technology in preparation of high purity scandium metal was proposed and its purification mechanism was discussed.
方法灵敏、快速、简便，满足4～5N高纯金属铕及其氧化物产品分析的要求。
The method is sensitive, rapid and easy to operation, and meets the requirement for the product analysis of 4 -5N high purity europium metal and its oxide.
不管是从纯金属的外观到精致的内部设计，到处都充满了漂亮的昆虫仿生设计。
Whether the appearance of a pure metal from the exquisite interior design, everywhere is full of beautiful insects bionic design.
本标准溶液以高纯金属铜片在超净实验室中准确配制并分装于20毫升安瓿中。
This standard solution was accurately prepared in super-clean laboratory with highly pure metal copper and sub-packed in 20 ml ampoules.
提出了纯金属电阻率的两个简化模型：一个统计模型，一个电子一声子耦合模型。
Two simplified models, statistical model and electron-phonon coupling model, for the ideal metal electrical resistivity have been put forward.
当流水返回时便携带着金原子，一旦高温、压开始减弱金就会以纯金属的方式浓缩在矿脉里。
On it's way back up, it then carries the gold atoms along with it and when the high pressures and temperatures decrease, the gold condenses into veins of pure metal.
采用相场模型和有限差分方法，模拟了过冷纯金属熔体的枝晶生长，计算区域为二维正方形均匀网格。
Dendrite growth has been simulated with the phase field method and finite difference schemes on a two dimensional rectangular domain with a uniform square mesh.
采用相场模型和有限差分方法，模拟了过冷纯金属熔体的枝晶生长，计算区域为二维正方形均匀网格。
The dendrite growth of pure metal in undercooled melts was simulated by using phase field model(PFM) and finite difference schemes.
结果表明，铝、铁和镍等纯金属材料作电流引线较好，但是引线最佳尺寸的选择比材料的选择更为重要。
The results show that pure aluminium, iron and nickel are relatively good for such electrical leads, and optimization of the geometrical parameter of the leads is more significant than…
在相场模拟中，通过捕获液态界面，系统研究了过冷对纯金属熔体凝固过程中树枝晶侧向分枝形貌的影响。
The growth process of side-branching of dendrites during solidification of pure Ni melt was studied by the phase-field simulation.
作者在自行设计并制造的一台单粒子冲击试验机上对部分纯金属和低碳钢在不同的冲击速度下进行冲击试验。
A single particle impact test device was designed and manufactured by the authors. Several pure metals and low carbon steels were impacted at different velocities using this test device.
作者在自行设计并制造的一台单粒子冲击试验机上对部分纯金属和低碳钢在不同的冲击速度下进行冲击试验。
A single particle impact test device was designed and manufactured by the authors. Several pure metals and low carbon steels were impacted at different velocities using this test device.
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