07-02/2022
POLEMA doubles the output of AM metal powders in 2021
24-01/2022
POLEMA supplied products for a thermonuclear reactor in France
03-06/2011
Progressive materials for multi-functional vacuum coatings
Application fields of materials for multi-functional vacuum coatings, characteristics of sputtering targets and evaporable sources used for technologies of physical deposition of hardening, protective, decorative and light-reflecting coatings, resistive, switching and transparent electro conductive films.
24-05/2011
Molybdenum and tungsten products for production of leucosapphires
POLEMA JSC is the leading global manufacturer of chromium, molybdenum, tungsten products,
Aluminum-titanium, chromium, aluminum-chromium sputtering targets, evaporable cathodes
Our materials for applying hardsurfacing coatings using physical vacuum deposition (PVD) methods are aimed at the synthesis of multi-functional coatings which, along with extreme hardness, boast a low friction coefficient, high tenacity, heat resistance, corrosion resistance, chemical inertness with respect to working material and high resistance to plastic deformation and abrasive wear.
Advantages of POLEMA S materials for hardsurfacing coatings:
- The materials reflect current trends in the creation of multi-functional hardsurfacing coatings in metalworking, the aviation industry and power engineering.
- The coatings make it possible to increase the strength of cutting and stamping instruments,exponentially to perform high-speed machining without cooling medium, to increase erosion resistance and the endurance strength of machine parts.
- A wide selection of compositions makes it possible to control the chemical composition and structure of the coatings, to synthesize multi-layer nitride, gradient and nano-structured hardsurfacing coatings for application in various spheres of metalworking, including conditions of cyclical thermo-mechanical stress.
- The design of sputtering targets and evaporable cathodes is adapted for various types of vacuum units and various kinds of ion-assisted coating deposition.
- All products are made on the basisof customer's specifications. The materials used are characterised by a homogenous microstructure and vacuum tightness.
POLEMA sputtering targets and evaporable cathodes are produced from various Al-Ti, Al-Ti-Si, Cr and Al-Cr compositions
| Grade, nominal composition, mass % | Composition, atomic % | Chemical composition, maximum mass % | minimum density, g/cm3 | |||||||
| C | N | O | S | Mg | Fe | Ni | Si | |||
| Ti37Al63-PM | Ti /Al 25/75 | 0,1 | 0,1 | 0,5 | 0,01 | 0,005 | 0,12 | 0,1 | 0,1 | 3,11 |
| Ti43Al57-PM | Ti /Al 30/70 | 0,1 | 0,1 | 0,5 | 0,01 | 0,005 | 0,12 | 0,1 | 0,1 | 3,20 |
| Ti47Al53-PM | Ti/Al 33/67 | 0,1 | 0,1 | 0,5 | 0,01 | 0,005 | 0,12 | 0,1 | 0,1 | 3,26 |
| Ti54Al46-PM | Ti/Al 40/60 | 0,1 | 0,1 | 0,5 | 0,01 | 0,005 | 0,12 | 0,1 | 0,1 | 3,38 |
| Ti59Al41-PM | Ti/Al 45/55 | 0,1 | 0,1 | 0,5 | 0,01 | 0,005 | 0,12 | 0,1 | 0,1 | 3,46 |
| Ti64Al36-PM | Ti/Al 50/50 | 0,1 | 0,1 | 0,5 | 0,01 | 0,005 | 0,12 | 0,1 | 0,1 | 3,55 |
| Ti43Al49Si8-PM | Ti/Al/Si/ 30/60/10 | 0,1 | 0,1 | 0,5 | 0,01 | 0,005 | 0,15 | 0,1 | 8±1 | 3,14 |
PM – Powder Metallurgy
The other following composites from other components can be created at the client's request.
Product form and dimensions
| Shape of machine-finished products | Diameter, mm | Thickness, mm | Width, mm | Length, mm |
| Plate | - | 6 to 20 | Up to 250 | Up to 1700 |
| Disc, cylinder, cone | 60 to 200 | 15 to 35 | - | - |
Chromium sputtering plates and evaporable cathodes ERCr 99,9-PM (Cr 99,9% min), ERCr 99,95-PM (Cr 99,95% min), ERCr 99,97-PM (Cr 99,97% min), ERCr 99,99-PM (Cr 99,99% min)
| Shape of machine-finished products | Diameter, mm | Thickness, mm | Width, mm | Length, mm |
| Plate | - | 5 to 50 | Up to 1400 | Up to 1700 |
| Disc, ring, cone | 50 to 400 | 5 to 50 | - | - |
| Rod, cylinder | 15 to 65 | - | - | Up to 600 |
Products made from Cr-Al composites are made in the form of disks with diameters of up to 105 mm, depending on the client's wishes
