All Stories

  1. Effect of high concentration of an ideal donor dopant on the dielectric properties of potassium sodium niobate (KNN) lead-free piezoelectric ceramic

    Article • January 2024, American Institute of Physics

    zainal arifin ahmad, MOHAMMAD HAFIZUDDIN HAJI M.H.H. JUMALI, Dr Akhmad Herma n A.H Yuwono

  2. Characteristic of beef tallow/rice husk charcoal/plaster composite phase change materials

    Article • January 2023, American Institute of Physics

    Dr Akhmad Herma n A.H Yuwono, I D G Ary Subagia

  3. Optical properties and photocatalytic performance analysis of titanium dioxide with various crystallite size

    Article • January 2023, American Institute of Physics

    Dr Akhmad Herma n A.H Yuwono

  4. Preparation of Al-doped Li4Ti5O12 anode material via sol-gel process with acidic catalyst for lithium-ion batteries

    Article • January 2023, American Institute of Physics

    Dr Akhmad Herma n A.H Yuwono

  5. Effect of ultrasonic pretreatment on electrochemical performance of LiFe0.5Mn0.5PO4/V/C composite in lithium-ion battery cathode

    Article • January 2023, American Institute of Physics

    Dr Akhmad Herma n A.H Yuwono, Farid Mifthahul Rozaq, Bambang Priyono

  6. Investigating the effect of crystallite size on the optical properties of zinc oxide

    Article • January 2023, American Institute of Physics

    Dr Akhmad Herma n A.H Yuwono

  7. Study of TiO2 nanotube crystal structure by rietveld analysis

    Article • January 2023, American Institute of Physics

    Dr Akhmad Herma n A.H Yuwono

  8. Thermal properties of nonstoichiometric Ca1+xCu3Ti4-xO12-2x ceramic materials in nitrogen and oxygen environment

    Article • January 2022, American Institute of Physics

    Dr Julie Juliewatty Mohamed, Noruzaman Daud, Dr Akhmad Herma n A.H Yuwono

  9. Physical, microstructure enhancement of K0.5Na0.5NbO3- based lead-free ceramics prepared via two-step sintering

    Article • January 2022, American Institute of Physics

    MOHAMMAD HAFIZUDDIN HAJI M.H.H. JUMALI, Dr Akhmad Herma n A.H Yuwono

  10. Calcium carbonate (CaCO3) contents influence the properties of mambong clay

    Article • January 2022, American Institute of Physics

    Dr Julie Juliewatty Mohamed, Dr Akhmad Herma n A.H Yuwono, Assoc. Prof. Dr. Muhammad Azwadi Sulaiman

  11. Clay characterizations in kampung kor and kampung seribong, kota bharu by using slip casting

    Article • January 2022, American Institute of Physics

    Dr Julie Juliewatty Mohamed, Dr Akhmad Herma n A.H Yuwono, Assoc. Prof. Dr. Muhammad Azwadi Sulaiman

  12. Specific heat and enthalpy of crystallization CaCu3+xTi4O12+x in TGA and DSC isothermal oxidation at 1000 °C

    Article • January 2022, American Institute of Physics

    Noruzaman Daud, Dr Akhmad Herma n A.H Yuwono

  13. Synthesis and characterization of Ca-Less CCTO dielectric electroceramic materials

    Article • January 2022, American Institute of Physics

    Dr Julie Juliewatty Mohamed, Noruzaman Daud, Dr Akhmad Herma n A.H Yuwono

  14. Effect of the two-step sintering to the phase structure, microstructure and dielectric properties of undoped K0.5Na0.5NbO3-Based lead-free ceramics

    Article • January 2022, American Institute of Physics

    MOHAMMAD HAFIZUDDIN HAJI M.H.H. JUMALI, Dr Akhmad Herma n A.H Yuwono, Dr Julie Juliewatty Mohamed

  15. Performance of nanocomposites TiO2/rGO as compact layer in zinc chloride modified perovskite solar cell

    Article • January 2021, American Institute of Physics

    Nofrijon Sofyan, Dr Akhmad Herma n A.H Yuwono, Marshall Christian Sianturi

  16. Fabrication of ZnO/rGO nanocomposite as a compact layer in zinc chloride modified perovskite solar cell

    Article • January 2021, American Institute of Physics

    Nofrijon Sofyan, Dr Akhmad Herma n A.H Yuwono

  17. High electrochemical performance of Al-doped Li4Ti5O12 (LTO) with prepared via sol-gel route at low pH as anode for lithium ion battery

    Article • January 2021, American Institute of Physics

    Dr Akhmad Herma n A.H Yuwono

  18. Synthesis of titanium oxysulfate from ilmenite through hydrothermal, water leaching and sulfuric acid leaching routes

    Article • January 2020, American Institute of Physics

    Dr Akhmad Herma n A.H Yuwono

  19. Optoelectronic properties of ZnO nanorods thin films derived from chemical bath deposition with different growth times

    Article • January 2020, American Institute of Physics

    Dr Akhmad Herma n A.H Yuwono

  20. The effect of silver nitrate addition on antibacterial properties of bone scaffold chitosan-hydroxyapatite

    Article • January 2019, American Institute of Physics

    Dr Akhmad Herma n A.H Yuwono

  21. The study of zinc oxide addition into hydroxyapatite/chitosan scaffold for bone tissue engineering application

    Article • January 2019, American Institute of Physics

    Dr Akhmad Herma n A.H Yuwono

  22. Integration of Multiwalled Carbon Nanotubes in Bulk Heterojunction CdSe/PCPDTBT Hybrid Solar Cells

    Article • Materials Science Forum, August 2018, Trans Tech Publications

    Dr Akhmad Herma n A.H Yuwono, Nofrijon Sofyan

  23. Stress – Strain Analysis on ZnO Nanostructures Synthesized via Wet Chemistry Method

    Article • Advanced Materials Research, July 2015, Trans Tech Publications

    Dr Akhmad Herma n A.H Yuwono