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Metal Molybdenum: The Future Is Bright


 
PRLog - Feb. 7, 2014 - IRVINE, Calif. -- The production of metal molybdenum is performed with the help of powder metallurgy technique. This process hydrostaticallycompacts the molybdenum powder and sinters it at a high temperature of about 2100゜C. Molybdenum has a tendency of oxidizing at temperature higher than 600゜C. That is why environment has to be either vacuum or non-oxidizing for high-temperature applications.

Discovered by Scheele in year 1778, metal molybdenum is a hard transitional metal which is white and silvery in look. On comparing with tungsten, we will find it more ductile and softer. When we talk of its chemical properties, it has an atomic number of 42 and atomic mass of 95.94. At 20゜C its density is 10.2 and electro-negativity is 1.8. It has very high melting point which is 2810゜C. The boiling point of this metal is 4825゜C. Its ionic radius is 0.068 nm and Vander Waals radius is 0.139 nm.

Let us switch to some biochemical features of molybdenum. It is an essential element for human body albeit present in trace. The most significant roleof molybdenum is in the form of heteroatom in several enzymes, so-called cofactor. Molybdenum is also present in nitrogenase enzyme which performs the task of nitrogen fixation in certain bacteria.

Metal molybdenum is naturally available as a trace mineral in vivo. Studies have shown that the quantity of molybdenum present in the living body is about 0.07 milligram/kgof weight. However, liver and kidney are two organs where it is available in more quantity. On the contrary, concentration is low in vertebrae. It presence in tooth enamel helps to prevent the teeth from decay.

It is not only the pure molybdenum that has wide applications but also its alloys are used for various purposes all over the world. It is feasible to machine pure and alloyed molybdenum materials with any type of machining technique. It is possible to achieve first-rate surface finishes along with exacting tolerances. Due to these features, manufacturers prefer this metal in the production of pars with different types and sizes.

However, you have to keep some points in mind while trying to machine molybdenum or its alloys. Althoughits strength at high temperature is well known, yet you have to be careful at ambient temperatures. In addition, sharpness of machine tools is also important otherwise the machine may tear the material. It is also possible to join both metal and its alloys by welding process. Although the strength of weld and its surrounding area is significantly reduced, the welded structure is still successful in many applications. Fragility of welded arrangement is less if heat input is lower.

The positive aspect is that metallic molybdenum is not only a metal of choice for the existing applications today, but it will remain a favorite metal for emerging markets also. Qualities such as exceptional thermal conductivity, high stiffness, resistance at high temperature, low coefficient of thermal expansion and ability to be compatible with different environmental conditions are going to be equally significant for upcoming applications.

About Stanford Materials Corporation  http://stanfordmaterials.com/

Stanford Materials Corporation is a worldwide supplier of various oxides, metals, alloys, advanced ceramic materials, and minerals. It was established in 1994 to supply high quality rare earth products to our customers in the research and development fields. To meet increasing demands for rare earth products and other materials, Stanford Materials now carries a variety of materials to serve not only our customers in research and development but also manufacturers in the ceramic, metallurgy and electronic industries. Stanford Materials carries both technical grade materials for industries as well as high purity chemicals (up to 99.99999%) for research institutes. Our annual revenue has exponentially increased since its establishment and reached five millions US dollar last year.

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Source:Stanford Materials Corporation
Location:Irvine - California - United States
Industry:Industrial, Manufacturing
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