すばらしい補助材料

このブログでは、純粋な金属、合金、セラミックス、ミネラルなど希少な先端物質に関する幅広い知識についてのブログです。

Is ceria poisonous?

2018-02-24 15:21:08 |  化学物質のニュース
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.
For more information, please visit http://www.samaterials.com/137-cerium

What is Coatings Industry

2018-01-05 14:21:45 |  化学物質のニュース
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.
For more information, please visit http://www.samaterials.com/406-thermal-spraying-material

Sputtering is the Preferred Vacuum Deposition Technique

2017-12-15 11:28:11 |  化学物質のニュース
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.
For more information, please visit http://www.samaterials.com/


Tungsten Heavy Alloy Can be Used to Balance Weights

2017-12-15 11:21:30 |  化学物質のニュース
With the density as high as 16.8~18.8g/cm3, tungsten heavy alloy has been widely used as balancing weights:

• Balancing weights in racing cars, submarines, and airplanes.
• Crankshaft balances
• Oil drilling counterweight stem
• Mobile phones, game machines oscillator
• Gyroscope in aerospace
• Fishing and golf counterweight


• The conventional processing route for tungsten heavy alloys includes mixing the desired amount of elemental powders, followed by cold pressing and liquid phase sintering to almost full density. The matrix alloy melts and takes some tungsten into solution during liquid phase processing, resulting in a microstructure through which large tungsten grains (20–60µm) are dispersed in the matrix alloy. The as-sintered material often is subjected to thermo mechanical processing by swaging and aging, which results in increased strength and hardness in the heavy alloys.

• The majority of current uses for WHAs (tungsten heavy alloys) are best satisfied with the W-Ni-Fe system. Alloys such as 93W-4.9Ni-2.lFe and 95W-4Ni-lFe represent common compositions. The addition of cobalt to a W-Ni-Fe alloy is a common approach for slight enhancement of both strength and ductility. The presence of cobalt within the alloy provides solid-solution strengthening of the binder and slightly enhanced tungsten-matrix interfacial strength. Cobalt additions of 5 to 15% of the nominal binder weight fraction arc most common.
For more information, please visit http://www.samaterials.com/31-tungsten-heavy-alloy


What 3D Printing Powder is Used for

2017-12-01 09:58:14 |  化学物質のニュース
Using 3D printing techniques, it is possible to create view molds in hours or days because of the rapid prototyping characteristics of 3D printing, car manufacturers can apply to the development of automotive shape plans.
Compared to the traditional handmade sludge mold, 3D printing can more accurately convert the 3D plan into something, and the time is shorter, improve the level of production efficiency of the car plan.

At present, many manufacturers have been in the planning aspects of the beginning of the application of 3D printing skills, such as BMW, running the middle of the plan. Car manufacturers can use 3D printing techniques to automate small batches of custom components and production, and are able to create and create complex shapes such as inorganic form factor, hollow and negative tension.
3D printing can quickly make the appearance of complex parts, when the test results, change the 3D file from the new print can be tested again.
For more information, please visit http://www.samaterials.com/405-3d-printing-powder