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All Journal Jurnal Biosains Pascasarjana Indonesian Journal of Tropical and Infectious Disease Indonesian Applied Physics Letters Prosiding Seminar Nasional Unimus
Andi Hamim Zaidan
Department Of Physics, Faculty Of Science And Technology, Universitas Airlangga
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Dentistry Earth & Planetary Sciences Electrical & Electronics Engineering Engineering Health Professions Immunology & microbiology Materials Science & Nanotechnology Medicine & Pharmacology Nursing Physics Public Health

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Journal : Indonesian Applied Physics Letters

 1 
Synthesis and Characterization of Nickel-Based Superalloy Materials for Manufacturing Aircraft Turbine Blades Rezza Ruzuqi; Drs. Djony Izak Rudyardjo, M.Si.; Andi Hamim Zaidan, S.Si., M.Si., Ph.D.
Indonesian Applied Physics Letters Vol. 2 No. 2 (2021): December
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/iapl.v2i2.31557

Abstract

The research has been conducted to manufacture nickel-based Superalloy materials. The purpose of this research was to find out the effects of variation of nickel composition on physical and mechanical properties of the Superalloy materials and find out the appropriate composition of Superalloy materials as materials for turbine blades. This research used nickel, cobalt, chromium, molybdenum, aluminium, and titanium commercial. The results showed that with more addition of nickel composition, the density and hardness values increased. This research showed that nickel-based Superalloy material 59 wt% was better applied as materials for turbine blades. It is also supported by the results of the test microstructure, where the structure of the sample morphology is more delicate and denser and contains smaller pores. Based on the XRD test results are also shown in the sample has been formed Superalloys phase.
Ab Initio Molecular Dynamic Study of Structural and Electrical Properties of Gold Nanoparticle Abdullah Aufa Fuad; Andi Hamim Zaidan; Adri Supardi
Indonesian Applied Physics Letters Vol. 3 No. 1 (2022): June
Publisher : Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/iapl.v3i1.40259

Abstract

The goal of this research is to know structural and electrical properties of gold nanoparticle (GNP) through ab initio molecular dynamic (AIMD) method. Structural properties are explained by the study of coordination number, bond angle distribution, and radial distribution function. Electrical properties are explained by the study of band structure and density of states. GNP samples used in this research are liquid, amorph, and icosahedral. The main software used for AIMD numerical calculation was SIESTA. Liquid GNP is dominated by coordination number of 9, amorf GNP 10, icosahedral GNP 18. Bond angle distribution of liquid GNP has 1 peak in 60o, amorph GNP has 4 peak in 60o, 90o, 120o, 175o, icosahedral GNP has complete all 6 peak. Internal spacing of liquid GNP is 2,7 Ã…, amorph is 2,8 Ã…, icosahedral is 1,9 Ã…. Study of band structure show that the width of liquid GNP bandgap is 0,040 eV, amorph is 0,071 eV, icosahedral is 0,200 eV. While the width of bandgap by density of state study for liquid GNP is 0,053 eV, amorph is 0,085 eV, icosahedral is 0,200 eV.
Co-Authors Abd Razak, Nasrul Anuar Abdullah Aufa Fuad Adri Supardi Aisya, Rohadatul Aminatun Aminatun Amruloh, Yazid Muhammad Arifianto, Deny Djony Izak Rudyardjo Faiq Nadiatul Mardia Asa Farhah, Ghinaa Rihadatul Aisy Firdaus, Indri K Jan Ady Junico, Vallery Ofelia Nurdin, Dezy Zahrotul Istiqomah Prihartini Widiyanti Rezza Ruzuqi S Siswanto Salwa, Umaimah Mitsalia Ummi Samian Sri Sumarsih Supadi Supadi Suryani Dyah Astuti WINARNO Yaqubi, Ahmad Khalil