23.12/2022
Merry Christmas and Happy New Year 2023!
27.06/2022
POLEMA’s QMS confirmed its compliance with ISO 9001:20015
POLEMA JSC confirmed the compliance of the current QMS with the requirements of ISO 9001:2015.
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, metal powders and composite materials.
Aluminum-titanium, chromium, aluminum-chromium sputtering targets, evaporable cathodes
Modern materials for multi-functional hardsurfacing coatings
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.
Some 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 mediuml, 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, 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 basis of 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 |
Cr-Al composites products are made in the form of disks with diameters of up to 105 mm, depending on the client's requirements.
