Physical-Technical Institute

https://phti.by/  

High voltage electrochemical oxidation technology to form decorative and hardwearing aluminum oxide coatings on aluminum alloys

COUNTRY OF ORIGIN

Belarus

IDENTIFIER

TO3039

PUBLISHED

2020-11-27

LAST UPDATE

2021-04-06

DEADLINE

Linked profile in other language
Responsible
Kristina Gritsik
+375447767088
gritsik@phti.by
Summary
Physical-Technical Institute developed a technology of high voltage electrochemical oxidation. The technology is used to form hard wearing aluminum ceramic coatings on products from aluminum alloys. Coating properties: hardness up to 8 GPa; roughness < 0,05 µm; thickness up to 70 µm. The institute is looking for industrial partners or R&D organizations for commercial agreement with technical assistance, license agreement, or research cooperation agreement.
Description
Physical-Technical Institute NAS of Belarus specializing in industrial technologies developed the high voltage electrochemical oxidation (HVEO) method for the treatment of aluminum and its alloys.

Surface treatment of components made from light-weight materials such as aluminum or magnesium is required to improve corrosion resistance and wear resistance. The anodizing or micro-arc oxidation (MAO) methods used today create protective coatings on aluminum and its alloys with the following properties:
- hardness up to 6 GPa
- roughness < 0,2 µm
- thickness up to 40 µm.

HVEO method is a transition process between traditional oxidation and full micro-arc oxidation, which is implemented by supplying a pulsed current with voltage up to 520 V during the oxidation process. Application of pulses with different shapes and duration allows increasing the growth rate of the oxide film, its microhardness, and corrosion resistance. The coating properties achieved by HVEO are:
- hardness up to 8 GPa
- roughness < 0,05 µm
- thickness up to 70 µm.

HVEO is used to harden rings of the fuel pumps, watch cases, mobile phone cases made from aluminum, etc., also for blanks of printed circuit boards based on aluminum, as substrates for LED lamps and others.

The institute is looking for an industrial partner from the metalworking industry interested in using the technology for the treatment of its aluminum or aluminum alloy products under a commercial agreement with technical assistance or license agreement; industrial partner or R&D organization interested in improving or adapting the technology to the specific needs under a research cooperation agreement.
Advantages and Innovations
The high voltage electrochemical oxidation (HVEO) developed by the Institute allows to create of a coating on products from aluminum alloys with the following properties:
- hardness up to 8 GPa
- roughness < 0,05 µm
- thickness up to 70 µm,

compared to properties of traditional anodizing or micro-arc oxidation (MAO) method:
- hardness up to 6 GPa
- roughness < 0,2 µm
- thickness up to 40 µm.
Stage of development
Field tested/evaluated (TRL8)
Funding source
State budged
Internal
IPR status
Secret know-how
Sector group
Aeronautics, Space and Dual-Use Technologies
Environment
Maritime Industry and Services
Materials

Organization information

Type
R&D institution
Year established
1931
NACE keywords
C.25.61 - Treatment and coating of metals
M.72.19 - Other research and experimental development on natural sciences and engineering
Turnover (in EUR)
1-10M
Already engaged in transnational cooperation
Yes
Additional comments
The R&D institute develops technologies for processing of materials using laser, ion and electron beams, plasma flows, high pressures and electromagnetic fields, also develops new multifunctional materials and coatings with improved characteristics for machine building industry, tool making, microelectronics, medicine and others.
Languages spoken
English
Russian

Information about partnership

Type of partnership considered
Commercial agreement with technical assistance
License agreement
Research cooperation agreement
Type and role of partner sought
Type of partner sought: company or R&D organization.

Industrial partner from metalworking industry interested in using the technology for the treatment of its aluminum or aluminum alloy products under a commercial agreement with technical assistance or license agreement.

Industrial partner or R&D organization interested in improving or adapting the technology to the specific needs under a research cooperation agreement.
Type and size of partner sought
> 500 MNE
> 500
251-500
SME 51-250
SME 11-50
SME <= 10
R&D Institution
University

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