Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Visweswara Chakravarthy Gudla"'
Autor:
Jan H. Nordlien, Visweswara Chakravarthy Gudla, Giorgio Giovanni Battista Zaffaroni, Carsten Gundlach, R. Yazdi, Simone Laganà, Bjorn Olsson, Rajan Ambat
Publikováno v:
Materials and Corrosion. 72:1582-1594
Autor:
Visweswara Chakravarthy Gudla, Sreeram K. Kalpathy, S. Anandhan, B. Sachin Kumar, Rajan Ambat
Publikováno v:
Kumar, B S, Gudla, V C, Ambat, R, Kalpathy, S K & Anandhan, S 2019, ' Graphene nanoclusters embedded nickel cobaltite nanofibers as multifunctional electrocatalyst for glucose sensing and water-splitting applications ', Ceramics International, vol. 45, no. 18, Part B, pp. 25078-25091 . https://doi.org/10.1016/j.ceramint.2019.03.155
Nickel cobaltite (NCO) attains the apex of Sabatier-type volcano plot for electrochemical reaction compared to simple oxides due to synergetic effect of mixed transition metal cations. The combination of high surface area, aspect ratio, and porosity
Autor:
Malte Storm, Timothy L. Burnett, Parmesh Gajjar, Alistair Garner, John J. Lewandowski, N.J. Henry Holroyd, Benjamin C. Palmer, James Carr, Visweswara Chakravarthy Gudla, Philip J. Withers
Publikováno v:
Corrosion Reviews
Environmentally induced cracking (EIC) in a sensitized high-strength AA5083 H131 alloy has been investigated using time-lapse synchrotron X-ray computed tomography combined with post-mortem correlative characterization. Small corrosion features delib
Publikováno v:
Jensen, F, Kongstad, I, Dirscherl, K, Gudla, V C & Ambat, R 2019, ' High frequency pulse anodising of recycled 5006 aluminium alloy for optimised decorative appearance ', Surface and Coatings Technology, vol. 368, pp. 42-50 . https://doi.org/10.1016/j.surfcoat.2019.04.024
High frequency (HF) pulse anodising of a recycled AA5006 Aluminium alloy has been investigated to understand the effect of pulse anodising on improvements in optical quality of anodised surfaces in a sulphuric acid bath. The investigation includes th
Autor:
Rajan Ambat, B. Sachin Kumar, S. Anandhan, Kartick Tarafder, Akshatha R. Shetty, Visweswara Chakravarthy Gudla, A. Chitharanjan Hegde, Sreeram K. Kalpathy
Publikováno v:
Kumar, B S, Tarafder, K, Shetty, A R, Hegde, A C, Gudla, V C, Ambat, R, Kalpathy, S K & Anandhan, S 2019, ' Polymorph nickel titanate nanofibers as bifunctional electrocatalysts towards hydrogen and oxygen evolution reactions ', Dalton Transactions, vol. 48, pp. 12684-12698 . https://doi.org/10.1039/c9dt01932d
Sachin Kumar, B, Tarafder, K, Shetty, A, Hegde, C, G V, C, Ambat, R, Kalpathy, S K & Anandhan, S 2019, ' Polymorph nickel titanate nanofibers as bifunctional electrocatalysts towards hydrogen and oxygen evolution reactions ', Dalton Transactions, vol. 48, pp. 12684-12698 . https://doi.org/10.1039/C9DT01932D
Sachin Kumar, B, Tarafder, K, Shetty, A, Hegde, C, G V, C, Ambat, R, Kalpathy, S K & Anandhan, S 2019, ' Polymorph nickel titanate nanofibers as bifunctional electrocatalysts towards hydrogen and oxygen evolution reactions ', Dalton Transactions, vol. 48, pp. 12684-12698 . https://doi.org/10.1039/C9DT01932D
Producing pure H2 and O2 to sustain the renewable energy sources with minimal environmental damage is a key objective of photo/electrochemical water-splitting research. Metallic Ni-based electrocatalysts are expensive and eco-hazardous. This has rend
Autor:
N.J. Henry Holroyd, Visweswara Chakravarthy Gudla, Malte Storm, Timothy L. Burnett, Benjamin C. Palmer, Philip J. Withers, John J. Lewandowski
Publikováno v:
Corrosion Science
G V, C, Storm, M, Palmer, B C, Lewandowski, J J, Withers, P, Holroyd, N J H & Burnett, T 2020, ' Environmentally induced crack (EIC) initiation, propagation, and failure: A 3D in-situ time-lapse study of AA5083 H131 ', Corrosion Science . https://doi.org/10.1016/j.corsci.2020.108834
G V, C, Storm, M, Palmer, B C, Lewandowski, J J, Withers, P, Holroyd, N J H & Burnett, T 2020, ' Environmentally induced crack (EIC) initiation, propagation, and failure: A 3D in-situ time-lapse study of AA5083 H131 ', Corrosion Science . https://doi.org/10.1016/j.corsci.2020.108834
Environment Induced Cracking (EIC) has been observed in three dimensions (3D) at high spatial and temporal resolution for AA5083 H131 alloy using in situ synchrotron X-ray CT. The initiation of EIC cracks occurred in humid air at ∼0.5σy and starte
Autor:
Rajan Ambat, Visweswara Chakravarthy Gudla, S. Anandhan, B. Sachin Kumar, Sreeram K. Kalpathy
Publikováno v:
Journal of Inorganic and Organometallic Polymers and Materials. 28:1885-1900
Nickel cobaltite (NCO) nanofibers were synthesized using poly(styrene-co-acrylonitrile) (SAN) as the polymeric binder through sol–gel assisted electrospinning. Defect-free precursor nanofiber mats were pyrolyzed at 773 K at three different pyrolysi
Publikováno v:
Bordo, K, C. Gudla, V, Peguet, L, Afseth, A & Ambat, R 2018, ' Electrochemical profiling of multi-clad aluminium sheets used in automotive heat exchangers ', Corrosion Science, vol. 131, pp. 28-37 . https://doi.org/10.1016/j.corsci.2017.11.011
A combination of glow discharge optical emission spectroscopy sputtering and local electrochemical measurements was used to determine electrochemical changes upon brazing in a multi-layered Aluminium sheet (AA4343/AA3xxx/AA4343) with an additional lo
Autor:
Rajan Ambat, Jose Cerezo, Ine Schoukens, Visweswara Chakravarthy Gudla, Veronique Vandenberghe, Francesca Cavezza
Publikováno v:
Materials and Corrosion. 69:881-887
Publikováno v:
Gudla, V C & Ambat, R 2017, ' Corrosion failure analysis of hearing aid battery-spring contacts ', Engineering Failure Analysis, vol. 79, pp. 980–987 . https://doi.org/10.1016/j.engfailanal.2017.05.045
Reliability of low power electrical contacts such as those in hearing aid battery-spring systems is a very critical aspect for the overall performance of the device. These systems are exposed to certain harsh environments like high humidity and eleva