What Should You Know about Cerium Oxide Polishing Powder

Cerium oxide polishing powder is widely used in glass polishing. It has the advantages of strong cutting force, short polishing time, long service life and high polishing precision. According to the content of cerium oxide, cerium oxide polishing powder is divided into low cerium, cerium, cerium polishing powder, cutting power.

As cerium-based rare earth polishing powder has better chemical and physical properties, it has been widely used in the polishing of industrial products, such as various optical glass devices, television picture tubes, optical glasses, oscilloscopes, flat glass, Semiconductor chips and precision metal products such as polishing.

Cerium rare earth polishing powder, is mainly used for high-speed precision optical lens polishing. The excellent performance of the polishing powder, polishing is better, due to higher prices, the domestic use of less. The cerium-based rare earth polishing powder is mainly used for high-speed polishing of moderate precision medium and small spherical lenses of optical instruments. Compared with the high-cerium powder, the polishing powder can reduce the liquid concentration of the polishing powder by 11% and the polishing rate by 35% Finish can be improved by one degree, polishing powder life can be increased by 30%.

Low cerium-based rare earth polishing powder, is suitable for television picture tubes, eyeglasses and flat glass polishing. In addition, other polishing powders are used to polish optical instruments, video cameras, and camera lenses, and the like, with the largest amount of polishing powder.

The main components of cerium oxide polishing powder are cerium oxide (CeO2), followed by La2O3, Pr2O3, LaOF, and trace amounts of silicon oxide, aluminum oxide and calcium oxide.

Is ceria poisonous?

The density of 7.13g / cm3. Melting point is 2397 °C. It is insoluble in water and alkali, slightly soluble in acid. The temperature is free from 2000 ℃, at 5Mpa pressure, cerium oxide was slightly yellowish red, and pink, its performance is to do polishing materials, catalysts, catalyst carriers (additives), UV absorbers, fuel cell electrolytes, automobile exhaust absorbers, electronic ceramics.

Uses:
1 It can be used for oxidant, organic reaction catalyst, steel analysis for rare earth metal standard, redox titration analysis, decolored glass, glass enamel sunscreens, heat-resistant alloy.
2 Used as a glass industry additive for plate glass grinding material, can also be used in cosmetics play a role in anti-UV. It has been expanded to the glasses, optical lenses, CRT grinding, from decolorization, clarification, the absorption of ultraviolet glass and electronic lines and so on.

3 The rare earth elements are used for the decolorization of glass, they are mainly ceria and neodymia. Rare earth glass bleaching agent can replace the traditional use of bletilla striata, not only to improve efficiency, but also to avoid the pollution of white snakehead. Cerium oxide is used for glass bleaching with high temperature performance, low price and does not absorb visible light and so on.
4 The use of cerium oxide can instead of the traditional arsenic as a glass clarifier to remove air bubbles and trace elements, the effect is notable in the preparation of colorless glass bottles, the finished product crystal fluorescent is white, good transparency, glass strength and heat resistance increased. It also eliminates arsenic pollution of the environment and glass.
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How Does Zinc Oxide Work

Most zinc is used to galvanise other metals, such as iron, to prevent rusting. Galvanised steel is used for car bodies, street lamp posts, safety barriers and suspension bridges.

Large quantities of zinc are used to produce die-castings, which are important in the automobile, electrical and hardware industries. Zinc is also used in alloys such as brass, nickel silver and aluminium solder.

Zinc oxide is widely used in the manufacture of very many products such as paints, rubber, cosmetics, pharmaceuticals, plastics, inks, soaps, batteries, textiles and electrical equipment. Zinc sulfide is used in making luminous paints, fluorescent lights and x-ray screens.

Characteristics
Zinc Oxide is white or light gray powder, non-toxic and odorless. Its specific gravity is 5.47, melting point 1975℃. It is soluble in acid and alkali, insoluble in water and alcohol.

Applications
It is widely used in tyres, shoes, automobile parts etc. rubber products, white pigment and UV-absorbent for coating, medicine, printing ink, additive for fodder and makeup etc..
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What is Coatings Industry

Paint industry is constant progress and development, look at the paint market is to "health, environmental protection, green" direction.

Water-based paint is also temporarily outcrop around the corner, the Chinese paint market is on track, sprint another production peak. As of 2011, the cumulative amount of the paint production reached 3.28 million tons, an increase of 16.3%. Asia-Pacific region has become the largest geographic area, accounting for more than 35% of the global coatings production.

A survey shows that in recent years, world demand is to paint an average annual growth rate of 3.5% growth. By 2011, the global coatings market capacity is 27 million tons Dada, involving more than the amount of $ 93 billion. Among them, the Asia-Pacific region coatings demand will reach 8.9 million tons. Paint on the world market in a good situation, the international top brands of industrial coatings company integrate acquisitions exacerbate and accelerate the development of the Asian market.

Akzo Nobel paint company after divestiture British crown, thanks to the acquisition of Imperial Chemical ICI, therefore firmly occupy the leading position in the field of coatings, ranking first. PPG style macarons through acquisitions to further strengthen its market position. RPM increase internal brand integration efforts. Diamond coatings and paints in the acquisition Seasons Frost paint, ranked ninth in the world in the ranks.
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Sputtering is the Preferred Vacuum Deposition Technique

Sputtering is a physical vapor deposition (PVD) method of depositing the evaporated target material onto the surface of the substrate forming a thin film layer.
Sputtering is the preferred vacuum deposition technique used by manufacturers of semiconductors, CDs, disk drives, and optical devices. It is used extensively in the semiconductor industry to deposit thin films of various materials in integrated circuit processing. Thin anti-reflection coatings on glass for optical applications are also deposited by sputtering. Sputtered films exhibit excellent uniformity, density, purity and adhesion.
Several types of sputtering processes exist, including: ion beam, diode, and magnetron sputtering.

In the sputtering process substrates are placed into the vacuum chamber, and are pumped down to their process pressure. Sputtering starts when a negative charge is applied to the target material (material to be deposited), causing a plasma or glow discharge. Positive charged gas ions generated in the plasma region are attracted to the negative biased target plate at a very high speed. This collision creates a momentum transfer and ejects atomic size particles from the target. These particles traverse the chamber and are deposited as a thin film onto the surface of the substrates.

The tungsten, molybdenum, titanium targets offered by Stanford Advanced Materials have the advantages of high density, high purity, high precision, homogeneous structure etc.
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