Pink and what is the difference between rare earth polishing powder
Because of the chemical and physical properties better with cerium based polishing powder, so it has been widely used in industrial products such as polishing, polishing in various optical glass devices, television picture tube, optical glasses, tube, plate glass, semiconductor wafer and precision metal products etc..
More than 10 kinds of metal oxides, such as aluminum, zinc, chromium, manganese, titanium, zirconium, silicon, iron and rare earth, have been used in industry.In the polishing powder polishing effect of cerium based polishing powder is best, it has been replaced by other polishing powder (such as SiO2, ZrO2 and Fe2O3) applications, so there will be a cerium based rare earth polishing powder, known as the "king of polishing powder".
Cerium based rare earth polishing powder is one of the most important rare earth products.Because of its strong ability of cutting, polishing and polishing time is short, high precision, clean operation environment and other advantages, so other than polishing powder (such as pink Fe2O3) the good use effect, known as "the king of polishing powder".
Information, biology, new materials, new energy, space and oceans are pushing for the contemporary scientists six new technology research group, rare earth, rare earth, rare earth, attention is the development for the rare earth elements have to display their skills in the six science and Technology Group in the world. However, rare earth elements are, after all, a group of elements that are not yet fully understood, which requires great efforts to study and understand them so as to hold them and make greater contributions to mankind.
The position of rare earth elements in the periodic table of the element is very special. The 17 elements are in the first element of the transition element series in group III, B, scandium, yttrium and lanthanum, respectively, for fourth, fifth, sixth and long cycles. The 14 elements of nature and LA are very similar, chemists can only put them in a lattice, no wonder some people regard them as "isotope" approach, but because of their different atomic numbers, also cannot be counted as true isotope. That is to say, their properties are very similar, but not exactly the same, which resulted in this group of elements is difficult to separate, but also shows that as long as the use of the very small difference, and separation is possible; on the other hand, their electronic structure has an inner electronic layer is not completely filled, namely 4f layer. Because of the difference in the number of electrons in the 4f layer, each element of the group has a very specific personality, especially the optical and magnetic properties, like a keyboard with a full range and a wide range of pianos.
