EPVD Technology
Electromagnetically enhanced Physical Vapor Deposition (EPVD®) is an advanced coating technique developed by Paradigm Shift Technologies, Inc. This technology enhances traditional physical vapor deposition methods by incorporating electromagnetic fields to improve coating performance, particularly in high-stress applications such as gun barrel coatings.[1][2][3][4]
History
Paradigm Shift Technologies, Inc., a Canadian company founded in 1995, developed the EPVD® Technology to address the limitations of conventional coating techniques. The company has created a coating method that offers reduced friction, wear resistance, corrosion resistance, thermal stability, chemical resistance, and accuracy. EPVD® technology was invented to replace traditional chrome plating by Dr. Gennady Yumshtyk, chief executive officer of Paradigm Shift.[1]
PVD is the primary technology from which EPVD® is derived. Likewise, EBPVD is also derived from PVD technology.[24] EBPVD uses an electron beam to heat the source material until it vaporizes, while EPVD® is a technique that enhances the PVD process by using electromagnetic fields to influence the deposition process providing unique ability to apply coatings to internal surfaces of long tubular components. This can lead to improved coating characteristics such as hardness, adhesion, uniformity, and non-hazardous.[5][6][7]
Paradigm Shift Technologies, Inc. is the primary developer of EPVD® technology. The company collaborates with various defense and industrial partners to implement the coating technique. While most companies use hexavalent chrome plating to coat gun barrels, EPVD® aims to make the barrel more accurate, improve barrel wear resilience, reduce maintenance, and be greener for the environment.[8][9][10]
Process overview
EPVD® involves vaporizing the coating material in vacuum and depositing it onto the substrate. Electromagnetic fields are applied to control the deposition rate and ensure uniform coating thickness, resulting in superior coating properties.[1] In this process, the material is removed from a target made from the refractory alloy and deposited on the bore of the gun barrel in a low-pressure, inert environment.[11][12][13]
The EPVD® process was developed with a unique ability to generate thick coatings (50 to 300 microns), which are often required for gun barrel applications. The process is easily adapted to accommodate small, medium, and large caliber gun barrels, applying engineered multilayer coatings. This process applies coatings of mostly metallic or ceramic material. EPVD® Coatings employed for gun barrel applications have been predominantly engineered with tantalum, tungsten, and other refractory metals.[14][15]
Applications
EPVD® technology is primarily utilized in the defense industry for coating gun barrels, significantly enhancing their accuracy, durability, and lifespan. The coating technique addresses the high-stress requirements of military applications.[16][17][18]
Beyond defense, EPVD® finds applications in various high-performance sectors. In the aerospace industry, it is used to coat turbine blades and engine components, improving resistance to extreme temperatures and wear. The automotive industry benefits from EPVD® technology by improving the performance and longevity of engine parts and transmission components. Additionally, EPVD® is employed in petrochemical applications, industrial machinery and medical device manufacturing, enhancing the durability and biocompatibility of surgical instruments and implants.[19][20][19][20]
Awards and recognition
- Chairman's Awards - Bronze Award 2009: Advanced Gun Barrel Technology - Enhancing Customer Performance Category. Nominated by Amir Chaboki.
- SBIR - STTR Award: New gun barrel coating promotes better accuracy.
- Restoration of LG Components.
- Corrosion Resistant Composite Bearings.[21]
- Advanced Wear Coating Systems for Landing Gear.[22]
- EPVD® Coatings Improvement of Gun Barrels.[23]
- Medium Caliber Gun Barrel Bore Coatings.[24]
References
- ↑ "European defence industry eyes Canadian technology". The Globe and Mail. 2024-04-21. Retrieved 2024-09-30.
- ↑ "Membership Levels – Vanguard". Retrieved 2024-09-30.
- ↑ "CADSI / AICDS". www.defenceandsecurity.ca. Retrieved 2024-09-30.
- ↑ "Toxic artillery: Paradigm Shift Technologies on chrome plating". defence.nridigital.com. Retrieved 30 September 2024.
- ↑ "Paradigm Shift Technologies Inc. | Ontario at Eurosatory 2024 | Source from Ontario". www.sourcefromontario.com. Retrieved 2024-09-30.
- ↑ "Achievements and Future of EPVD® Technology". medium.com. Retrieved 30 September 2024.
- ↑ "Patents Assigned to BH5773 Ltd - Justia Patents Search". patents.justia.com. Retrieved 2024-09-30.
- ↑ "Advanced Gun Barrel Technologies (AGBT" (PDF). ndiastorage.blob. Archived from the original (PDF) on 29 August 2024. Retrieved 30 September 2024.
- ↑ Technology, Coating (2024-07-15). "EPVD® vs Traditional Coating Methods: A Comparative Analysis". Medium. Retrieved 2024-09-30.
- ↑ "Gennady Yumshtyk Inventions, Patents and Patent Applications - Justia Patents Search". patents.justia.com. Retrieved 2024-09-30.
- ↑ "EPVD® Technology: Origins and Innovations". medium.com. Retrieved 30 September 2024.
- ↑ 20060207871, Yumshtyk, Gennady & Dmitri Ivanov, "Sputtering devices and methods", issued 2006-09-21
- ↑ CA2362146C, Yumshtyk, Gennady & Michael Ioumchtyk, "Procede et appareil de pulverisation au magnetron", issued 2008-02-12
- ↑ "Understanding EPVD®: The Technology and Its Process". medium.com. Retrieved 30 September 2024.
- ↑ CA2601834C, Ivanov, Dmitri & Gennady Yumshtyk, "Sputtering devices and methods", issued 2014-07-08
- ↑ "Transformative Applications of EPVD® Technology". medium.com.
- ↑ "Paradigm Shift Technologies Inc. (PST) | Devex". www.devex.com. Retrieved 2024-09-30.
- ↑ "Technology Guide 2023-24 Cohort" (PDF).
- ↑ "Chrome Replacement for Gun Barrels". serdp-estcp.mil. Retrieved 2024-09-30.
- ↑ "Chrome Replacement for Gun Barrels" (PDF). aiacpacific.ca.
- ↑ "Award | SBIR". www.sbir.gov. Retrieved 2024-09-30.
- ↑ "Award | SBIR". www.sbir.gov. Retrieved 2024-09-30.
- ↑ "Award | SBIR". www.sbir.gov. Retrieved 2024-09-30.
- ↑ "Award | SBIR". www.sbir.gov. Retrieved 2024-09-30.
