Now showing items 1-16 of 16

  • Comparative study of corrosion performance of HVOF-sprayed coatings produced using conventional and suspension WC-Co feedstock. 

    Ahmed, Rehan; Vourlias, G.; Algoburi, A.; Vogiatzis, C.; Chaliampalias, D.; Skolianos, S.; Berger, Lutz-Michael; Paul, Shiladitya; Faisal, Nadimul Haque; Toma, Filofteia-Laura; Al-Anazi, Nayef M.; Goosen, Mattheus F. A. (Springer https://doi.org/10.1007/s11666-018-0775-2, 2018-10-30)
    AHMED.R., VOURLIAS, G., ALGOBURI, A., VOGIATZIS, C., CHALIAMPALIAS, D., SKOLIANOS, S., BERGER, L.-M., PAUL, S., FAISAL, N.H., TOMA, F.-L., AL-ANAZI, N.M and GOOSEN, M.F.A. 2018. Comparative study of corrosion performance of HVOF-sprayed coatings produced using conventional and suspension WC-Co feedstock. Journal of thermal spray technology [online], 27(8), pages 1579-1593. Available from: https://doi.org/10.1007/s11666-018-0775-2
    Corrosion properties of nanostructured coatings deposited by suspension high-velocity oxy-fuel (S-HVOF) via an aqueous suspension of milled WC-Co powder were compared with conventional HVOF-sprayed coatings. Microstructural ...
  • Comparison of wear performance of thermal sprayed cermet (WC-Co) coatings from suspension and feedstock powders. 

    Ali, O.; Ahmed, Rehan; Alawadhi, H.; Shameer, M.; Faisal, Nadimul Haque; Al-Anazi, Nayef M.; Goosen, Mattheus F. A. (DVS Media GmbH http://www.proceedings.com/38541.html, 2017-06-07)
    ALI, O., AHMED, R., ALAWADHI, H., SHAMEER, M., FAISAL, N., AL-ANAZI, N. and GOOSEN, M. 2017. Comparison of wear performance of thermal sprayed cermet (WC-Co) coatings from suspension and feedstock powders. In the Proceedings of the International thermal spray conference and exposition 2017 (ITSC 2017), 7-9 June 2017, Dusseldorf, Germany. Dusseldorf: DVS Media GmbH [online], pages 681-686. Available from: http://www.proceedings.com/38541.html
    WC-Co coatings were deposited using conventional High Velocity Oxy-Fuel Jet-Kote (HVOF-JK) and Suspension HVOF (S-HVOF) methods. Microstructural and mechanical properties along with the wear resistance of coatings were ...
  • Cyclic nanoindentation and nano-impact fatigue mechanisms of functionally graded TiN/TiNi film. 

    Faisal, Nadimul Haque; Prathuru, Anil Kumar; Goel, Saurav; Ahmed, Rehan; Droubi, Mohamad Ghazi; Beake, Ben; Fu, Y. Q. (Springer https://doi.org/10.1007/s40830-017-0099-y, 2017-03-09)
    FAISAL, N.H., PRATHURU, A.K., GOEL, S., AHMED, R., DROUBI, M.G., BEAKE, B.D. and FU, Y.Q. 2017. Cyclic nanoindentation and nano-impact fatigue mechanisms of functionally graded TiN/TiNi film. Shape memory and superelasticity, Special issue: functional performance of shape memory alloys, invited paper, 3(2), pages 149-167. Available from: https://doi.org/10.1007/s40830-017-0099-y
    The mechanisms of nanoscale fatigue of functionally graded TiN/TiNi films have been studied using multiple-loading cycle nanoindentation and nano-impact tests. The functionally graded films were sputter-deposited onto ...
  • Development of plasma-sprayed molybdenum carbide-based anode layers with various metal oxides for SOFC. 

    Faisal, Nadimul Haque; Ahmed, Rehan; Katikaneni, Sai P.; Souentie, Stamatios; Goosen, Mattheus F. A. (Springer https://dx.doi.org/10.1007/s11666-015-0315-2, 2015-09-25)
    FAISAL, N.H., AHMED, R., KATIKANENI, S.P., SOUENTIE, S. and GOOSEN, M.F.A. 2015. Development of plasma-sprayed molybdenum carbide-based anode layers with various metal oxides for SOFC. Journal of thermal spray technology [online], 24(8), pages 1415-1428. Available from: https://dx.doi.org/10.1007/s11666-015-0315-2
    Air plasma-sprayed (APS) coatings provide an ability to deposit a range of novel fuel cell materials at competitive costs. This work develops three separate types of composite anodes (Mo-Mo2C/Al2O3, Mo-Mo2C/ZrO2, Mo-Mo2C/TiO2) ...
  • Diametral compression test method to analyse relative surface stresses in thermally sprayed coated and uncoated circular disc specimens. 

    Faisal, Nadimul Haque; Mann, Lewis; Duncan, Conor; Dunbar, Euan; Clayton, Michael; Frost, Mark; McConnachie, Jenny; Fardan, A.; Ahmed, Rehan (Elsevier https://doi.org/10.1016/j.surfcoat.2018.10.053, 2018-10-22)
    FAISAL, N.H., MANN, L., DUNCAN, C., DUNBAR, E., CLAYTON, M., FROST, M., MCCONNACHIE, J., FARDAN, A. and AHMED, R. 2019. Diametral compression test method to analyse relative surface stresses in thermally sprayed coated and uncoated circular disc specimens. Surface and coatings technology [online], 357, pages 497-514. Available from: https://doi.org/10.1016/j.surfcoat.2018.10.053
    In firsts of its investigation, a diametral compression destructive testing method (also known as Brazilian test) was performed on thermally sprayed coated and uncoated circular disc specimens to compare relative surface ...
  • Fuel cells as an energy source for desalination applications. 

    Faisal, Nadimul Haque; Ahmed, Rehan; Islam, Sheikh Zahidul; Hossain, Mamdud; Souentie, Stamatios; Katikaneni, Sai P.; Goosen, Mattheus F. A. (CRC Press (member of Taylor & Francis) https://www.crcpress.com/Renewable-Energy-Technologies-for-Water-Desalination/Mahmoudi-Ghaffour-Goosen-Bundschuh/p/book/9781138029170, 2017-06-06)
    FAISAL, N., AHMED, R., ISLAM, S., HOSSAIN, M., STAMATIOS, S., KATIKANENI, S. and GOOSEN, M. 2017. Fuel cells as an energy source for desalination applications. In Mahmoudi, H., Ghaffour, N., Goosen, M.F.A. and Bundschuh, J. (eds.) Renewable energy technologies for water desalination. Boca Raton, FL: CRC Press, chapter 7, pages 131-145.
    Nowadays, there is a renewed interest in fuel cell technology from industry and academia, electrochemistry and catalysis scientists. This interest is due to environmental legislations for CO2 and other greenhouse gases ...
  • Future of nanoindentation in archaeometry. 

    Faisal, Nadimul Haque; Ahmed, Rehan; Goel, Saurav; Cross, Graham (Cambridge University Press https://doi.org/10.1557/jmr.2018.280, 2018-08-20)
    FAISAL, N.H., AHMED, R., GOEL, S. and CROSS, G. 2018. Future of nanoindentation in archaeometry. Journal of materials research [online], 33(17), pages 2515-2532. Available from: https://doi.org/10.1557/jmr.2018.280
    This review aims to consolidate a scattered literature on the use of a modern nanomechanical testing techniques in archaeometry materials research such as the process of mummification. It is concluded that nanoindentation ...
  • An improved Vickers indentation fracture toughness model to assess the quality of thermally sprayed coatings. 

    Faisal, Nadimul Haque; Ahmed, Rehan; Prathuru, Anil Kumar; Spence, S.; Hossain, Mamdud; Steel, John A. (Elsevier http://dx.doi.org/10.1016/j.engfracmech.2014.07.015, 2014-07-29)
    FAISAL, N.H., AHMED, R., PRATHURU, A.K., SPENCE, S., HOSSAIN, M. and STEEL, J.A. 2014. An improved Vickers indentation fracture toughness model to assess the quality of thermally sprayed coatings. Engineering fracture mechanics [online], 128, pages 189-204. Available from: http://dx.doi.org/10.1016/j.engfracmech.2014.07.015
    This study presents an improved approach to the quality assessment of thermally sprayed coatings. Measurements were carried out on five different coatings. Since it is the overall extent of surface cracking during Vickers ...
  • Influence of post-treatment on the microstructural and tribomechanical properties of suspension thermally sprayed WC-12 wt%Co nanocomposite coatings. 

    Ali, O.; Ahmed, Rehan; Faisal, Nadimul Haque; Alanazi, Nayef M.; Berger, Lutz-Michael; Kaiser, A.; Toma, Filofteia-Laura; Polychroniadis, E. K.; Sall, M.; Elakwah, Y.O.; Goosen, Mattheus F. A. (Springer https://doi.org/10.1007/s11249-017-0815-y, 2017-01-19)
    ALI, O., AHMED, R., FAISAL, N.H., ALANAZI, N.M., BERGER, L.-M., KAISER, A., TOMA, F.-L., POLYCHRONIADIS, E.K., SALL, M., ELAKWAH, Y.O. and GOOSEN, M.F.A. 2017. Influence of post-treatment on the microstructural and tribomechanical properties of suspension thermally sprayed WC-12 wt%Co nanocomposite coatings. Tribology letters [online], 65(2), article 33. Available from: https://doi.org/10.1007/s11249-017-0815-y
    The potential to improve the tribomechanical performance of HVOF-sprayed WC-12Co coatings was studied by using aqueous WC-12Co suspensions as feed-stock. Both as-sprayed and hot-isostatic-pressed (HIPed) coatings were ...
  • Influence of test methodology and probe geometry on nanoscale fatigue mechanisms of diamond-like carbon thin film. 

    Faisal, Nadimul Haque; Ahmed, Rehan; Goel, Saurav; Fu, Y. Q. (Elsevier http://dx.doi.org/10.1016/j.surfcoat.2014.01.015, 2014-01-22)
    FAISAL, N.H., AHMED, R., GOEL, S. and FU, Y.Q. 2014. Influence of test methodology and probe geometry on nanoscale fatigue mechanisms of diamond-like carbon thin film. Surface and coatings technology [online], 242, pages 42-53. Available from: http://dx.doi.org/10.1016/j.surfcoat.2014.01.015
    The aim of this paper is to investigate the mechanism of nanoscale fatigue using nano-impact and multiple-loading cycle nanoindentation tests, and compare it to previously reported findings of nanoscale fatigue using ...
  • Microstructural evaluation of suspension thermally sprayed WC-Co nanocomposite coatings. 

    Ahmed, Rehan; Faisal, Nadimul Haque; Ali, O.; Al-Anazi, Nayef M.; Al-Mutairi, S.; Mamour, S.; Polychroniadis, E. K.; Goosen, Mattheus F. A. (Springer http://dx.doi.org/10.1007/978-3-319-16919-4_5, 2015-05-05)
    AHMED, R., FAISAL, N.H., ALI, O., AL-ANAZI, N.M., AL-MUTAIRI, S., MAMOUR, S., POLYCHRONIADIS, E.K. and GOOSEN, M.F.A. 2015. Microstructural evaluation of suspension thermally sprayed WC-Co nanocomposite coatings. Springer proceedings in physics [online], 164, Proceedings of the 2nd international multidisciplinary microscopy and microanalysis congress (InterM), 16-19 October 2014, Oludeniz, Turkey. Pages 31-38. Available from: http://dx.doi.org/10.1007/978-3-319-16919-4_5
    Microstructural and sliding wear evaluations of nanostructured coatings deposited by Suspension High Velocity Oxy-Fuel (S-HVOF) spraying were conducted in as-sprayed and HIPed (Hot Isostatically Pressed) conditions. S-HVOF ...
  • Neutron diffraction residual strain measurements of molybdenum carbide-based solid oxide fuel cell anode layers with metal oxides on Hastelloy X. 

    Faisal, Nadimul Haque; Ahmed, Rehan; Prathuru, Anil Kumar; Katikaneni, Sai P.; Goosen, Mattheus F. A.; Zhang, Shu Yan (Springer https://doi.org/10.1007/s11340-017-0298-7, 2017-05-31)
    FAISAL, N.H., AHMED, R., PRATHURU, A.K., KATIKANENI, S.P., GOOSEN, M.F.A. and ZHANG, S-Y. 2018. Neutron diffraction residual strain measurements of molybdenum carbide-based solid oxide fuel cell anode layers with metal oxides on Hastelloy X. Experimental mechanics [online], 58(4), pages 585-603. Available from: https://doi.org/10.1007/s11340-017-0298-7
    Thermal spray deposition processes impart residual stress in layered Solid Oxide Fuel Cells (SOFC) materials and hence influence the durability and efficiency of the cell. The current study which is the first of its kind, ...
  • Single asperity nanoscratch behavior of HIPed and cast Stellite 6 alloys. 

    Ahmed, Rehan; Ashraf, A.; Elameen, M.; Faisal, Nadimul Haque; El-Sherik, A.M.; Elakwah, Y.O.; Goosen, Mattheus F. A. (Elsevier http://dx.doi.org/10.1016/j.wear.2014.02.006, 2014-02-17)
    AHMED, R., ASHRAF, A., ELAMEEN, M., FAISAL, N.H., EL-SHERIK, A.M., ELAKWAH, Y.O. and GOOSEN, M.F.A. 2014. Single asperity nanoscratch behavior of HIPed and cast Stellite 6 alloys. Wear [online], 312(1-2), pages 70-82. Available from: http://dx.doi.org/10.1016/j.wear.2014.02.006
    The aim of this study was to investigate the nanoscale sliding wear behaviour of re-HIPed (Hot Isostatically Pressed) and cast cobalt-based Stellite 6 alloys. A nanoindentation system equipped with a wear testing module ...
  • Sliding Wear Investigation of Suspension Sprayed WC-Co Nanocomposite Coatings. 

    Ahmed, Rehan; Ali, O.; Faisal, Nadimul Haque; Al-Anazi, Nayef M.; Al-Mutairi, S.; Toma, Filofteia-Laura; Berger, Lutz-Michael; Potthoff, A.; Goosen, Mattheus F. A. (Elsevier. http://dx.doi.org/10.1016/j.wear.2014.10.021, 2015-01)
    AHMED, R., ALI, O., FAISAL, N. H., AL-ANAZI, N. M., AL-MUTAIRI, S., TOMA, F.-L., BERGER, L.-M., POTTHOFF, A. and GOOSEN, M. F. A., 2015. Sliding Wear Investigation of Suspension Sprayed WC-Co Nanocomposite Coatings. Wear, 322-323, pp. 133–150.
    Sliding wear evaluation of nanostructured coatings deposited by Suspension High Velocity Oxy-Fuel (S-HVOF) and conventional HVOF (Jet Kote (HVOF-JK) and JP5000 (HVOF-JP)) spraying were evaluated. S-HVOF coatings were ...
  • Structure property relationship of suspension thermally sprayed WC-Co nanocomposite coatings. 

    Ahmed, Rehan; Faisal, Nadimul Haque; Al-Anazi, Nayef M.; Al-Mutairi, S.; Toma, Filofteia-Laura; Berger, Lutz-Michael; Potthoff, A.; Polychroniadis, E. K.; Sall, M.; Chaliampalias, D.; Goosen, Mattheus F. A. (Springer. http://dx.doi.org/10.1007/s11666-014-0174-2, 2015-02)
    AHMED, R., FAISAL, N. H, AL-ANAZI, N. M., AL-MUTAIRI, S., TOMA, F.-L., BERGER, L.-M., POTTHOFF, A., ELAKWAH, Y. O. and GOOSEN, M. F. A., 2015. Structure property relationship of suspension thermally sprayed WC-Co nanocomposite coatings. Journal of Thermal Spray Technology, 24 (3), pp. 357-377.
    Tribomechanical properties of nanostructured coatings deposited by suspension high velocity oxy-fuel (S-HVOF) and conventional HVOF (Jet Kote) spraying were evaluated. Nanostructured S-HVOF coatings were obtained via ball ...
  • Structure-property relationships in a CoCrMo alloy at micro and nano-scales. 

    Ahmed, Rehan; de Villiers Lovelock, H.L.; Faisal, Nadimul Haque; Davies, S. (Elsevier http://dx.doi.org/10.1016/j.triboint.2014.06.015, 2014-07-05)
    AHMED, R., DE VILLIERS LOVELOCK, H.L., FAISAL, N.H. and DAVIES, S. 2014. Structure-property relationships in a CoCrMo alloy at micro and nano-scales. Tribology international [online], 80, pages 98-114. Available from: http://dx.doi.org/10.1016/j.triboint.2014.06.015
    This investigation considered the multiscale tribo-mechanical evaluations of CoCrMo (Stellite®21) alloys manufactured via two different processing routes of casting and HIP-consolidation from powder (Hot Isostatic Pressing). ...