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All Journal Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Bulletin of Electrical Engineering and Informatics Jurnal Teknosains Sinergi Journal of Engineering and Technological Sciences JFA (Jurnal Fisika dan Aplikasinya) Jurnal Teknik Mesin Konversi Journal of Physics: Theories and Applications Turbo : Jurnal Program Studi Teknik Mesin Jurnal Kimia Terapan Indonesia Indonesian Journal of Chemistry Jurnal Teknik Mesin Indonesian Journal of Energy Indonesian Journal of Electrical Engineering and Computer Science Journal of Materials Exploration and Findings (JMEF) International Journal of Innovation in Mechanical Engineering and Advanced Materials Journal of Bioresources and Environmental Sciences Journal Of Carbazon Jurnal Sains Materi Indonesia Journal of Batteries for Renewable Energy and Electric Vehicles
Deni Shidqi Khaerudini
Universitas Mercu Buana
Aerospace Engineering Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics

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Journal : Journal of Physics: Theories and Applications

 1 
Perovskite Manganit Analysis Based on La0.7Ca0.3Mn1-xTixO3 (x=0, 0.1, 0.2, and 0.3) as Potential Microwave Absorber Material with Sol-Gel Method Fira Rizky; Sitti Ahmiatri Saptari; Arif Tjahjono; Deni Shidqi Khaerudini
Journal of Physics: Theories and Applications Vol 6, No 1 (2022): Journal of Physics: Theories and Applications
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jphystheor-appl.v6i1.59142

Abstract

Electromagnetic wave is an energy flow in the form of electric and magnetic field as the technology development causes electromagnetic wave exposure level changes significantly and resulting an electromagnetic wave radiation that leads bad impacts on human health. In this case, manganite perovskite became an interesting topic of study that aims to produce material engineering to obtain a material with the best property as absorber. This study is based on lanthanum manganite La0.7Ca0.3Mn1-xTixO3 (  and ) using sol-gel method with the with a heating temperature in the oven of 200oC for 2 hours, calcination temperature of 600oC for 6 hours, and sintering temperature of 1000oC for 12 hours. The sample is characterized using X-Ray Diffraction (XRD) that shows the sample had succeeded to form single phase and had crystal cubic structure with space group p m -3 m, the substitution of Ti3+ions did not cause the structural changes, but it was marked with the changes of lattice parameter, unit cell volume and average crystallite size. Meanwhile Vector Network Analyzer (VNA) on the frequency range 8-12 GHz shows that the sample has ability to absorb microwave until 90.16% on 10.4 GHz frequency. Therefore, the material based on lanthanum manganite La0.7Ca0.3Mn1-xTixO3has the potential as the microwave absorber material.
Analysis Perovskite Material Absorber Based on Nd0.6Sr0.4MnxFe1/2(1-x)Ti1/2(1-x)O3 (x = 0, 0.1, 0.2) by Sol-Gel Method Fajar Arif Kurniawan; Sitti Ahmiatri Saptari; Arif Tjahjono; Deni Shidqi Khaerudini
Journal of Physics: Theories and Applications Vol 6, No 1 (2022): Journal of Physics: Theories and Applications
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jphystheor-appl.v6i1.59122

Abstract

The purposes of this research is to synthesis Nd0.6Sr0.4MnxFe1/2(1-x)Ti1/2(1-x)O3 (x = 0. 0.1, 0.2) materials as electromagnetic wave absorber using the sol-gel method. Materials characterized using X-Ray Diffraction (XRD) to determine the phase formed and Vector Network Analyzer (VNA) to determine the ability or strength of absorption of electromagnetic waves. The result of  XRD material has a structure orthorhombic with space group P b n m (62-3), the substitution of Mn+3 ions on Fe+3 ions and Ti+4 ions causes a phase change of the material from when x  =0 in the absence of Mn+3 ions 2 phases are formed, while when Mn+3 is substituted 1 phase is formed. The result of VNA with a frequency range of 8 – 12 GHz shows that the material has the ability to absorb electromagnetic waves up to 98,22% at a frequency of 9,5 GHz when x = 0.2. Thus, the material synthesis Nd0.6Sr0.4MnxFe1/2(1-x)Ti1/2(1-x)O3 has been successfully synthesized and has the ability to absorb electromagnetic waves.
Analysis of crystal structure and reflection loss of material based on La0.7Sr0.3Mn1-x(Ni, Ti)x/2O3 (x=0.1, 0.3, and 0.5) applications for microwave absorbers Sitti Ahmiatri Saptari; Nada Hashida Lathifah; Arif Tjahjono; Deni Shidqi Khaerudini
Journal of Physics: Theories and Applications Vol 6, No 2 (2022): Journal of Physics: Theories and Applications
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jphystheor-appl.v6i2.60178

Abstract

In this research, structural engineering of lanthanum manganite material based on La0.7Sr0.3Mn1-x(Ni,Ti)x/2O3 (x = 0.1; 0.3 and 0.5) was synthesized using the sol-gel method. The prepared samples were then characterized using X-ray Diffraction (XRD) and Vector Network Analyzer (VNA). X-Ray Diffraction (XRD) characterization results obtained a single. Substitution of Ni and Ti ions with a concentration of x = 0.1; 0.3; and 0.5 indicate that the formed sample has a rhombohedral structure with a space group R -3c, the presence of Ni and Ti ion substitution does not cause a change in the structure but there is a change in the lattice parameters and crystal size. Vector Network Analyzer (VNA) characterization in the range of 8 – 12 GHz produces the most optimal reflection loss intensity value of -11.8 dB at an optimal frequency of 10.58 GHz at a concentration of x = 0.5 with the ability to absorb microwaves of 93.39%. Thus the material La0.7Sr0.3Mn1-x(Ni,Ti)x/2O3 (x = 0.1; 0.3 and 0.5) can be used as a microwave absorbent material.
Co-Authors Abdul Hamid Budiman Abdul Hamid Budiman Abdulloh Rifai Abu Bakar, Afarulrazi Ade Utami Hapsari Ade Utami Hapsari Adnan, Farrah Anis Fazliatun Afarulrazi Abu Bakar Aghni Ulma Saudi Aghni Ulma Saudi Agustanhakri Agustanhakri Aiman Sajidah Abd Aziz Akhiruddin Maddu Ana Nur Octaviani Andhika Prima Prasetyo Andi Firdaus Sudarma Andri Hardiansyah Anggito Pringgo Tetuko Annisa Azzahra Arif Tjahjono Arif Tjahjono Arif Tjahjono Azizi, Muhammad Bambang Mulyanto Bambang Mulyanto Chollacoop, Nuwong Dafit Feriyanto Damisih Damisih Damisih Damisih Damsyik, Akhmad Dani Tri Wahyudi Dani Tri Wahyudi Desi Fajarwati Destyorini, Fredina Dita Adi Saputra Djajadiwinata, Eldwin Dwi Pudjisusilo, Raden Edy Herianto Majlan F. Adany Fajar Arif Kurniawan Fania, Adhista Faozan Ahmad Fira Rizky Fitri Suryani Arsyad Fredina Destyorini Galih Taqwatomo Gea, Markus Gerald Ensang Timuda Gerald Ensang Timuda Ginting, Dianta H. Hardhienata Hanif Yuliani Hanif Yuliani Henry Widodo Ilham Nur Dimas Yahya Indayaningsih, Nanik Indri Susanti Indriyati Indriyati Iqbal, Rendy Muhamad Irmawati, Yuyun Isnaeni Isnaeni Jarot Raharjo Jarot Raharjo Kurniawan Kurniawan Lukman Faris Nurdiyansah Marcelinus Christwardana Mardiyati, Mardiyati Masno Ginting Mas’ud Asadullah Muhamad Fitri Muhammad Dikdik Gumelar Muljadi Muljadi Muljadi Muljadi Nada Hashida Lathifah Nanik Indayaningsih Nisya Ulmiah Nofrijon Sofyan, Nofrijon Nono Darsono Nono Darsono Nono Darsono, Nono Nuwong Chollacoop Oka Pradipta Arjasa Oka Pradipta Arjasa Oktaviani, Ana Nur Pandriana, Aap Perdamean Sebayang Permono Adi Putro Pratama, Wisnu Pudjiwati, Sri Retna Deca Pravitasari Retna Deca Pravitasari Retno Agnestisia Riandy Putra Riesma Tasomara Rike Yudianti Robi Suherman Sabilly Handi Pradana Saddam Husin Safaat, Mukhtar Sagir Alva Sanusi, Yasa Saptari, Sitti Ahmiatri Simanjutak, Elfrida Roulina Simarmata, Sari Namarito Sinaga, Tiara Cristy Sinaga, Tiara Cristy Agatha Slamet Priyono Sri Rahayu Sudarma, Andi Firdaus Susilo, R Dwi Pudji Tarigan, Kontan Teguh Imam Prasetya Tommy Martin Syauta Triyanto Pangaribowo Vivi Friliandita Vivi Friliandita Wahyu Mulyo Utomo Wahyu Mulyo Utomo Wahyu Tri Utami Wahyudi, Dani Tri Widodo, Aditya Putra Widodo, Henry Wulandari, Ika Octavia Yunata Mandala Putra Yurian Ariandi Andrameda Yuyun Irmawati Yuyun Irmawati