The composition of TC4 titanium alloy is Ti-6AI-4V, which belongs to the (a+β) type titanium alloy. It has good comprehensive mechanical properties, high specific strength, excellent corrosion resistance, good biocompatibility, and is widely used in aerospace, petrochemical, biomedical and other fields. This article selects the plasma rotating electrode method to prepare titanium alloy powder, and...
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1. Classification of Scanning Electron Microscopes Scanning electron microscopy can be divided into thermal electron emission type and field emission type according to the different ways of electron generation. The filament used for thermal electron emission type is mainly tungsten filament electron microscopy. Field emission type The distinction between hot field emission and cold field emission....
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The sintering of materials involves at least two processes: densification of the body and growth of grains in the body. The longevity of grains is usually achieved through the movement of grain boundaries. According to the classical theory of grain growth kinetics, the difference in free energy between the two sides of a curved grain boundary is the driving force that causes the interface to move ...
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The essence of sintering is that the powder block is heated in an appropriate environment or atmosphere, and through a series of physical and chemical changes, the bonding between powder particles undergoes a qualitative change. The strength and density of the block increase rapidly, and other physical and mechanical properties are also significantly improved. The performance of ceramic materials ...
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After purchasing our company's nano iron oxide powder, the customer found that the particle size was larger during testing. Why is that? Because the particle size of nano powder is very fine, it is easy to agglomerate, so the large particle size tested is the particle size after agglomeration. So how can we effectively disperse nano iron oxide powder? Next, we will introduce how to use ultrasonic ...
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The major limitations on TEM performance are spherical aberration (also known as aberration), chromatic aberration, and astigmatism. The spherical aberration and chromatic aberration limit the resolution of traditional TEM. Both of these defects are inevitable when using static rotational symmetric electromagnetic fields. Ball aberration is the most important factor determining the performance of ...
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