Diffusion between Cu and Cu/Ag contact materials of relays during multiple cycles under AC operation

• Autorzy: Hotloś, Agnieszka , Boczkal, Grzegorz , Karpiński, Marcin
• Języki publikacji: EN

Abstrakty

EN

Mechanisms of contact diffusion during relay-contacts operation were investigated. The contacts with the same geometry but different chemical composition were tested. The 1st relay-contact in a pair was made of copper, and the 2nd had a surface coated with a layer of silver about 500 micrometers thick. Different numbers of work cycles ranging from 8.5 k to 550 k were applied. AC current in the system was limited to 5 A. The closed/open periods were set at 250/250 ms. The resistance of the contacts was measured every 100 cycles. The microstructure of the working surfaces of the contacts after different numbers of operating cycles was investigated. On the surface of Cu contacts eutectic precipitates are formed and on the complementary bimetal contact tiny Cu-rich precipitates were generated on the silver surface. Crossection observations showed mutual material diffusion between the contacts. The depth of silver diffusion into the copper contact after 550 k operating cycles reaches 30 micrometers. The resistance of the contact system was stabilized after 40 k cycles at a level of 0.25 Ohm.

Słowa kluczowe

EN

bimetal; contact diffusion; contacts wear; electric arc erosion

• Czasopismo: Archives of Electrical Engineering
• Rocznik: 2024
• Tom: Vol. 73, nr 3
• Strony: 629--642
• Opis fizyczny: Bibliogr. 24 poz., fot., rys., tab., wykr., wz.

Twórcy

autor

Hotloś, Agnieszka

• AGH University of Krakow, Faculty of Non-Ferrous Metals, al. Mickiewicza 30, 30-059 Kraków, Poland,

autor

Boczkal, Grzegorz

• AGH University of Krakow, Faculty of Non-Ferrous Metals, al. Mickiewicza 30, 30-059 Kraków, Poland,

autor

Karpiński, Marcin

• Łukasiewicz Research Network – Institute of Non-Ferrous Metals, Sowinskiego 5 St., 44-100 Gliwice, Poland,

Bibliografia

• [1] Schofield F.H., The thermal and electrical conductivities of some pure metals, Royal Society, vol. 107, no. 742, pp. 206–227 (1925), DOI: 10.1098/rspa.1925.0016.
• [2] Buch A., Pure metals properties: A scientific and technical handbook, ASM International/Freund Publishing, Metals Park, Ohio (1999).
• [3] Haikova T., Puzyr R., Savelov D., Dragobetsky V., Argat R., Sivak R., The Research of the Morphology and Mechanical Characteristics of Electric Bimetallic Contacts, Problems of Automated Electrodrive. Theory and Practice (PAEP), IEEE (2020), DOI: 10.1109/PAEP49887.2020.9240847.
• [4] Timsit R., Interdiffusion at Bimetallic Electrical Interfaces, IEEE Transactions on Components, Hybrids, and Manufacturing Technology, vol. 9, no. 1, pp. 106–116 (1986), DOI: 10.1109/TCHMT.1986.1136613.
• [5] Pfeifer S., Großmann S., Freudenberger R., Willing H., Kappl H., Characterization of Intermetallic Compounds in Al-Cu-Bimetallic Interfaces, 2012 IEEE 58th Holm Conference on Electrical Contacts (Holm) (2012), DOI: 10.1109/HOLM.2012.6336554.
• [6] Hansen M., Anderko K., Constitution of Binary Alloys, (2nd Edition), New York: McGraw-Hill Book Co., Inc. (1958).
• [7] Askeland D.R., Phulé P., Phuli P., Fulay P., The Science & Engineering of Materials (5th Edition), Published April 13th, ISBN 0534553966 (2005).
• [8] Raymond A.S., Principles of Physics (2nd Edition), Fort Worth, Texas, London: Saunders College Pub., 602, ISBN 978-0-03-020457-9 (1998).
• [9] Braunovic M., Myshkin N.K., Konchits V.V., Fundamentals, Applications and Technology; (1st Edition), p. 672 (2007).
• [10] Giancoli D., 25 Electric Currents and Resistance, In Jocelyn Phillips (ed.), Physics for Scientists and Engineers with Modern Physics (4th Edition), Upper Saddle River, New Jersey: Prentice Hall, 658, ISBN 978-0-13-149508-1 (2009).
• [11] Felicia D.M., Rochiem R., Laia S.M., The effect of silver (Ag) addition to mechanical and electrical properties of copper alloy (Cu) casting product, AIP Conf Proc 1945/1:020075-1–020075-7 (2018), DOI: 10.1063/1.5030297.
• [12] Coddet P., Verdy C., Coddet C., Debray F., On the mechanical and electrical properties of copper-silver and copper-silver-zirconium alloys deposits manufactured by cold spray, Materials Science and Engineering A, vol. 662, pp. 72–79 (2016).
• [13] Mousavi S.Z., Pourabdoli M., Silver-coated copper w material for manufacturing electrical contacts, Microelectronics Reliability, vol. 134, no. 4, 114554 (2022), DOI: 10.1016/j.microrel.2022.114554.
• [14] Richert M.W., Boczkal G., Hotloś A., Pałka P., Karpiński M., Tribological wear behaviour of electrical contacts made from AgNi10 composite, Archives of Metallurgy and Materials, vol. 62, no. 4, pp. 2007–2013 (2017), DOI: 10.1515/amm-2017-0299.
• [15] Engel P.A., Jang Q., Impact wear of multiplated electrical contacts, Wear, vol. 181–183, Part 2, pp. 730–742 (1995).
• [16] Shen F., Liao-Liang K., Numerical Study of Coupled Electrical-Thermal-Mechanical-Wear Behavior in Electrical Contacts, Metals, vol. 11, no. 6, 955, DOI: 10.3390/met11060955.
• [17] Grabowski D., Klimas M., New directions in electric arc furnance modeling, Archives of Electrical Engineering, vol. 72, no. 1, pp. 157–172 (2023), DOI: 10.24425/aee.2023.143695.
• [18] Mousavi Z., Pourabdoli M., Physical and chemical properties of Ag–Cu composite electrical contacts prepared by cold-press and sintering of silver-coated copper powder, Materials Chemistry and Physics, vol. 290, 126608 (2022), DOI: 10.1016/j.matchemphys.2022.126608.
• [19] Palenskis V., Drift Mobility, Diffusion Coefficient of Randomly Moving Charge Carriers in Metals and Other Materials with Degenerated Electron Gas, World Journal of Condensed Matter Physics, vol. 3, no. 1, pp. 73–81 (2013), DOI: 10.4236/wjcmp.2013.31013.
• [20] Huang Yi, Fengshun Wu, Zheng Zhou, Longzao Zhou, Hui Liu, Fabrication of fully covered Cu-Ag core-shell nanoparticles by compound method and anti-oxidation performance, Nanotechnology, vol. 31, no. 17, 175601 (2020), DOI: 10.1088/1361-6528/ab68b9.
• [21] Honda F., Imada Y., Okumura K., Nakajima K., Observations of electrical contact surface in CuAg/Ni couple with make/break, Thirty-Sixth IEEE Conference on Electrical Contacts, and the Fifteenth International Conference on Electrical Contacts, Montreal, QC, Canada, pp. 315–320 (1990), DOI: 10.1109/HOLM.1990.113028.
• [22] Weißenfels C., Wriggers P., Numerical modeling of electrical contacts, Computational Mechanics, vol. 46, no. 2, pp. 301–314 (2010), DOI: 10.1007/s00466-009-0454-8.
• [23] Yonggang Meng, Jun Xu, Liran Ma, Zhongmin Jin, Braham Prakash, Tianbao Ma, Wenzhong Wang, A review of advances in tribology in 2020–2021, Friction 2022, vol. 10, no. 10, pp. 1443–1595 (2022), DOI: 10.1007/s40544-022-0685-7.
• [24] Hen F., Liao-Liang K., Numerical Study of Coupled Electrical-Thermal-Mechanical Wear Behavior in Electrical Contacts, Metals, vol. 11, no. 6, pp. 1–18, 955 (2021), DOI: 10.3390/met11060955.

Identyfikatory

DOI

10.24425/aee.2024.150887