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Foto Mikroskopi dan Kuat Tekan komposit plastik magnet Ferit Zaehir Maulana, Lucky; Yulianto, Agus; Sulhadi, Sulhadi
Jurnal Spektra Vol 14, No 1 (2013): Spektra: Jurnal Fisika dan Aplikasinya
Publisher : Jurnal Spektra

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Telah dibuat komposit magnet dari campuran Ferro Ferrite (FeO.Fe2O3) dan LDPE. LDPE merupakan jenis plastik yang banyak beredar di pasaran. Komposit yang dihasilkan berbentuk bulk. Metode konfensional pembuatan magnet adalah metode metalurgi serbuk, solgel, kuenching dll, namun pada penelitian ini peneliti menggunakan metode lain. Metode yang digunakanadalah melt and blending yaitu dengan mencampurkan bahan saat bahan meleleh kemudian dicetak. Dari karakterisasi dengan Mikroskop Digital CCD terlihat bahwakomposit magnet yang dihasilkan memiliki homogenitas relatif tinggi. ADR touch 2000 standard digunakan untuk mengetahui kuat tekan komposit ini, dan dihasilkan ketahanan kuat tekan sampai 2,27 tonf saat sample mulai terdeformasi.Kata kunci: Ferro Ferrite, Plastic, Composite

Aplikasi low density polyethylene (LDPE) pada pembuatan magnet ferrite komposit Lucky Zaehir Maulana; Agus Yulianto; Sulhadi '
Jurnal Sains Dasar Vol 2, No 1 (2013): April 2013
Publisher : Faculty of Mathematics and Natural Science, Universitas Negeri Yogyakarta

Abstrak Telah dibuat komposit magnet dari campuran ferro ferrite (FeO.Fe2O3)/ stronsium ferrite (SrO.6Fe2O3) dan plastik low density polyethylene (LDPE). Low density polyethylene (LDPE) merupakan jenis plastik yang banyak dikenal di pasaran. Komposit yang dihasilkan berbentuk bulk. Metode yang digunakan adalah dengan mencampurkan bahan saat bahan meleleh kemudian dicetak. Dari karakterisasi dengan Mikroskop ini, dan dihasilkan ketahanan kuat tekan sampai 725.84 kgf/cm2 untuk ferro ferrite dan sampel stronsium ferrite memiliki ketahanan rata-rata sebesar 500 kg/cm2 saat sampel mulai terdeformasi. Dari uji magnetisasi diketahui sampel merupakan hard magnet dengan medan remanen 0,1 kG sampai 0,97 kG. Medan koersif berkisar 1.011 kOe sampai 1.297 kOe. Kata kunci: ferro ferrite, komposit, plastik, stronsium ferrite

Foto Mikroskopi dan Kuat Tekan komposit plastik magnet Ferit Lucky Zaehir Maulana; Agus Yulianto; Sulhadi Sulhadi
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 2 (2013): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2013
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (229.93 KB)

Telah dibuat komposit magnet dari campuran Ferro Ferrite (FeO.Fe2O3) dan LDPE. LDPE merupakan jenis plastik yang banyak beredar di pasaran. Komposit yang dihasilkan berbentuk bulk. Metode konfensional pembuatan magnet adalah metode metalurgi serbuk, solgel, kuenching dll, namun pada penelitian ini peneliti menggunakan metode lain. Metode yang digunakan adalah melt and blending yaitu dengan mencampurkan bahan saat bahan meleleh kemudian dicetak. Dari karakterisasi dengan Mikroskop Digital CCD terlihat bahwa komposit magnet yang dihasilkan memiliki homogenitas relatif tinggi. ADR touch 2000 standard digunakan untuk mengetahui kuat tekan komposit ini, dan dihasilkan ketahanan kuat tekan sampai 2,27 tonf saat sample mulai terdeformasi. Kata kunci: Ferro Ferrite, Plastic, Composite.

THE EFFECT OF MILLING ON PARTICLE SIZE AND CRYSTAL STRUCTURE IN MECHANOCHEMICAL PROCESSING OF LEAD-CONTAMINATED SYNTHETIC SOIL Lagowa, Muhammad Ikrar; Maulana, Lucky Zaehir
JOURNAL ONLINE OF PHYSICS Vol. 10 No. 2 (2025): JOP (Journal Online of Physics) Vol 10 No 2
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v10i2.43457

crystal structure, which can immobilize lead and mitigate environmental contamination. Milling as a mechanical treatment plays a critical role in determining the final properties of the processed material. This study investigates the role of particle size and crystal structure in the mechanochemical treatment of lead-contaminated synthetic soil. Two synthetic soil samples were prepared in the laboratory, including lead contamination. Milling of the contaminated soils was carried out in a planetary ball mill. The samples were analysed using a lasersizer and X-Ray Diffraction (XRD) to investigate the change in particle size and identify the crystalline phase after milling. The results showed that milling initially reduced particle size, but further milling resulted in particle agglomeration, which was reflected by partial amorphization in soil samples after milling. Other than the partial amorphization, no phase change was detected in the crystal structure. In conclusion, milling resulted in the change of particle size but did not affect the crystalline phase of the milled sample, despite of partial amorphization.

SOSIALISASI PENERAPAN TEKNOLOGI OTOMATIS PENGERING “KERUPUK BAKAR” GUNA MENGATASI KETERGANTUNGAN PROSES PENGERINGAN DENGAN PANAS MATAHARI DI KELURAHAN JELMU KECAMATAN PELAYANGAN, KOTA JAMBI Deswardani, Frastica; Pebralia, Jesi; Anggraini, Rista Mutia; Afrianto, Muhhamad Ficky; Maulana, Lucky Zaehir
Bestari: Jurnal Pengabdian Kepada Masyarakat Vol 5, No 1 (2025)
Publisher : Sekolah Tinggi Keguruan dan Ilmu Pendidikan (STKIP) Melawi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46368/dpkm.v5i1.2861

The production of "kerupuk bakar" (grilled crackers) in Jelmu Subdistrict, Pelayangan District, Jambi City, faces drying challenges due to dependence on sunlight, particularly during the rainy season. This community service activity aims to introduce automatic drying technology to reduce weather dependency. The technology features a heating system with adjustable temperature and time settings, providing an efficient, fast, and consistent drying process. Methods include training on equipment usage and mentoring for local "kerupuk bakar" entrepreneurs. Results show that the implementation of automatic drying technology improves productivity, quality stability, and local entrepreneurs' income. This activity is expected to be a long-term solution to support economic growth in the region’s home industries.

Pembuatan dan Karakterisasi Scaffold Hidroksiapatit (HAp) dari Limbah Tulang Ikan Tenggiri (Scomberomorus commerson) Rohania, Meisa; Deswardani, Frastica; Fendriani, Yoza; Anjelina, Ria; Anggraini, Rista Mutia; Maulana, Lucky Zaehir; Pujaningsih, Febri Berthalita
Jurnal Riset Fisika Indonesia Vol 5 No 2 (2025): Juni
Publisher : Jurusan Fisika, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jrfi.v5i2.6410

Defects in bone tissue represent a significant health concern and continue to pose challenges in clinical surgery. The fabrication of scaffolds from hydroxyapatite (HAp) can support bone regeneration. However, producing HAp scaffolds with ideal pore structures for effective bone tissue engineering remains difficult. In recent decades, many studies have attempted to enhance HAp scaffolds by incorporating polymeric materials to address their limitations. In this study, corn starch was used as a pore-forming agent, and polyvinyl alcohol (PVA) served as a binder and pore size regulator. The scaffolds were fabricated using the freeze-drying method, which offers the advantage of forming porous structures while maintaining scaffold integrity. This study investigated the effects of varying PVA additions which 3 wt%, 7 wt%, and 10 wt%. XRD analysis showed that the diffraction peaks of all samples corresponded to the HAp phase, displayed β-TCP peaks, and a crystal size with values ranging from 0.96 nm to 11.77 nm. SEM analysis showed that the HAp-7 scaffold has the largest pore size distribution range of about 1.19 µm to 11.77 µm.

ANALISIS VARIASI KONSENTRASI EKSTRAK DAUN PANDAN (Pandanus amaryllifolius) PADA GREEN SYNTHESIS NANOPARTIKEL MAGNETIT (Fe3O4) BERBASIS PASIR BESI (IRON SANDS) SUNGAI BATANG HARI Berliana, Aulia Putri; Deswardani, Frastica; Pujaningsih, Febri Berthalita; Anggraini, Rista Mutia; Maulana, Lucky Zaehir
JOURNAL ONLINE OF PHYSICS Vol. 10 No. 3 (2025): JOP (Journal Online of Physics) Vol 10 No 3
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v10i3.46458

Telah dilakukan penelitian tetang green synthesis nanopartikel berbasis pasir besi Sungai Batanghari dengan variasi konsentrasi ekstrak daun pandan (Pandanus Amaryllifolius). Penelitian ini bertujuan untuk mengetahui pengaruh dari variasi konsentrsi ekstrak daun pandan terhadap nanopartikel Fe3O4. Uji karakterisasi yang lakukan adalah uji XRD dan uji UV-Vis. Hasil analisis uji XRD menunjukan bahwa pola difraksi 2θ yang terletak pada sampel berturut-turut Fe3O4 , NP1, NP2, NP3, yaitu pada 35,51˚; 35,41˚; 35,49˚; dan 35,53˚ dengan bidang kristal (311). Ukuran kristal berturut-turut 13,83 nm; 26,80 nm; 13,86 nm; dan 25,30 nm. Hal ini menunjukan bahwa pada sampel NP1 dan sampel NP2 memiliki ukuran kristal lebih besar dibandingkan dengan sampel NP2. Nilai dari sampel NP2 hampir sama dengan ukuran kristal dari Fe3O4 tanpa tambahan ekstrak. Berdasarkan uji karakterisasi UV-Vis nanopartikel Fe3O4 menunjukan energy gap (Eg) yang elalui metode touc plot. Dengan nilai direct badgap berturut-turut 4,2 eV; 4,8 eV; dan 4,4 eV untuk sampel Fe3O4 , NP1, NP3 . Nilai indirect bandgap berturut-turut 3,9 eV; 4,1 eV; dan 3.7 eV untuk sampel Fe3O4 , NP1, NP3.

SOSIALISASI PENERAPAN TEKNOLOGI OTOMATIS PENGERING â€œKERUPUK BAKARâ€ GUNA MENGATASI KETERGANTUNGAN PROSES PENGERINGAN DENGAN PANAS MATAHARI DI KELURAHAN JELMU KECAMATAN PELAYANGAN, KOTA JAMBI Deswardani, Frastica; Pebralia, Jesi; Anggraini, Rista Mutia; Afrianto, Muhhamad Ficky; Maulana, Lucky Zaehir
Bestari: Jurnal Pengabdian Kepada Masyarakat Vol 5 No 1 (2025)
Publisher : Sekolah Tinggi Keguruan dan Ilmu Pendidikan (STKIP) Melawi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46368/dpkm.v5i1.2861

The production of "kerupuk bakar" (grilled crackers) in Jelmu Subdistrict, Pelayangan District, Jambi City, faces drying challenges due to dependence on sunlight, particularly during the rainy season. This community service activity aims to introduce automatic drying technology to reduce weather dependency. The technology features a heating system with adjustable temperature and time settings, providing an efficient, fast, and consistent drying process. Methods include training on equipment usage and mentoring for local "kerupuk bakar" entrepreneurs. Results show that the implementation of automatic drying technology improves productivity, quality stability, and local entrepreneurs' income. This activity is expected to be a long-term solution to support economic growth in the regionâ€™s home industries.

Sosialisasi Penggunaan Aplikasi Origin dan ImageJ untuk Analisis Sampel Material pada Mahasiswa Program Studi Fisika FST Universitas Jambi Pujaningsih, Febri Berthalita; Deswardani, Frastica; Alrizal, Alrizal; Pebralia, Jesi; Afrianto, M Ficky; Maulana, Lucky Zaehir; Anggraeni, Rista Mutia; Samsidar, Samsidar; Fendriani, Yoza; Hamdi, Husnul; Resta, Ichy Lucya
Jurnal Pengabdian Masyarakat (ABDIRA) Vol 6, No 1 (2026): Abdira, Januari
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/abdira.v6i1.1284

In the digital era, the ability to process and analyze experimental data has become an important skill in the field of materials science and engineering. Origin is a commercial software widely used for numerical data analysis and scientific visualization, while ImageJ is open-source software that functions in image processing of microscopic characterization results. Considering the importance of mastering both software, a socialization activity and basic training on the use of Origin and ImageJ was held for students of the Physics Study Program, Faculty of Science, University of Jambi. This activity aims to enable students to operate the software in processing research data independently and in accordance with scientific publication standards. Evaluation of the training was carried out by assessing the level of student understanding, which showed an increase in basic skills in using Origin for quantitative data analysis and ImageJ for digital image analysis.

Peningkatan kompetensi penulisan karya ilmiah guru di SMA Negeri 8 Tanjung Jabung Timur Maison Maison; Alrizal Alrizal; Dwi Agus Kurniawan; Febri Berthalita Pujaningsih; Lucky Zaehir Maulana
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 8, No 1 (2024): March
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v8i1.20546

AbstrakGuru harus mampu menulis karya ilmiah untuk meningkatkan karir dan memajukan pengembangan profesinya. Namun, kurangnya pengetahuan dan pengalaman menyebabkan banyak guru kesulitan dalam menulis karya ilmiah. Kegiatan pelatihan ini bertujuan untuk meningkatkan kompetensi guru-guru dalam menulis dan mempublikasikan karya ilmiah. Kegiatan pelatihan dilaksanakan pada tanggal 7 Agustus 2023 di SMAN 8 Tanjung Jabung Timur yang dihadiri oleh 12 peserta. Pelaksanaan kegiatan terdiri dari tahapan persiapan, pelaksanaan, dan evaluasi. Metode yang digunakan terdiri dari metode ceramah, diskusi, penugasan dan pendampingan. Metode ceramah dilakukan terkait pemberian pengetahuan teoretis dan praktis penulisan karya ilmiah, metode penugasan terkait pembuatan karya ilmiah dan pembimbingan teknis publikasi di jurnal ilmiah. Hasil kegiatan PKM menunjukkan bahwa peserta memberikan respon yang positif terhadap pelaksanaan kegiatan. Selain itu, kegiatan ini dapat meningkatkan pemahaman guru-guru dalam menulis karya ilmiah dan mempublikasikannya ke jurnal-jurnal ilmiah. Kata kunci: kompetensi; karya ilmiah; publikasi. Abstract Teachers must be able to write scientific papers to improve their careers and advance their professional development. However, the lack of knowledge and experience causes many teachers to struggle in writing scientific papers. This training activity aims to overcome the problems faced by teachers in writing and publishing scientific papers. The training activity was held on August 7, 2023 at SMAN 8 Tanjung Jabung Timur which was attended by 12 participants. The implementation of the activity consisted of preparation, implementation, and evaluation stages. The methods used consisted of lectures, discussions, assignments and mentoring. The lecture method was carried out related to providing theoretical and practical knowledge of writing scientific papers, the assignment method related to making scientific papers and technical guidance for publication in scientific journals. The results of the PKM activities showed that the participants gave a positive response to the implementation of the activities. In addition, this activity can increase the understanding of teachers in writing scientific papers and publishing them in scientific journals. Keywords: competence; scientific work; publication.

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