Molybdenum and tungsten: Our metals show their new facets.

The early industrial exploitation of our metals was a hot affair, namely as filaments in lights at the beginning of the 20th century. Plansee's product range has grown enormously since then. Their high melting point means that molybdenum and tungsten can nowadays be found in virtually all high-temperature applications. But for many branches of industry, it is other properties of the materials that are becoming ever more interesting.

Whether it be in the form of X-ray targets, glass melting electrodes or heating elements, Plansee products have proven themselves at extreme temperatures for decades. And they continue to do so. But nowadays, many customers have come to love our materials for their ranges of properties beyond their high melting point:

For instance the excellent shielding capabilities of tungsten. This metal is used in X-ray technology and radiotherapy, where it provides reliable shielding from X-rays and gamma radiation. In doing so, the material is even more effective than lead and is increasingly being used to replace the toxic heavy metal.

Its high density also makes tungsten an ideal material whenever high weight is needed in a small space. In this guise, tungsten is used as weights in watches or in crankshafts.

Customers from the semiconductor industry are particularly interested in the low coefficient of thermal expansion of molybdenum, which is very similar to that of semiconductor materials. This makes molybdenum and molybdenum-copper composites the perfect base for semiconductor layers. Heat spreaders and base plates made from our materials can today be found in products such as high-performance LEDs or in power electronics, where they reliably dissipate heat.

Another application not associated with high temperatures can be seen in coating technology. Molybdenum, tungsten and many of their alloys are used in the form of thin films in TFT-LCD screens or solar cells. The key properties here are their good adhesion to glass, their diffusion resistance and their good electrical conductivity.

And the good resistance to corrosion and wear and the low coefficient of friction of our materials are also important properties for many applications. Molybdenum, for instance, is used to manufacture protective coatings on synch rings and piston rings, corrosion-resistant tank reinforcements in glass-melting tanks or hot runner nozzles in plastics production.

The variety of the examples presented here make one thing clear: Even if the applications are cooler, we warmly recommend our materials.

Find out more about our materials.