Kajian Produksi Nano Partikel Dari Arang Bambu Dengan Peningkatan Energi Tumbukan Bola Baja Diameter 1/8 Inchi

Nano technology is a technology in the future that allows humans to manipulate the particles are very small and almost atomic size. Nano meter has a size of 1 per billion meters and its use for life in the future more efficient. In this study conducted nano study wulung bamboo charcoal particles produced with top-down approach using collision method with mils shaker model with 1/8 inch steel ball sizes and 3 million cycles. This research was done to find out the relationship between cycles with a 1/8 inch steel ball with size bamboo charcoal particles (carbon) as well as studying the visualization or surface morphology and composition contained in the collision material. Particular characteristics with PSA test, SEM and EDX test to analyze carbon particle size, surface morphology and chemical composition contained in collision material. which obtained from this PSA test is 6 58.6nm and the result obtained by SEM test is to produce large and irregular clump particle. The result of EDX element test yields particle size and composition ie, Carbon, C 95,78%, Silica Dioxide, Si020, 1,46%, Potassium Dioxide, K2 0,50%, Calcium Oxide, Ca0 0,16%, Iron (II) Oxide Fe0 0,79%, Copper (II) Oxide, Cu0 0,76%, Zink Oxide, Zn0 0,54%. The elements contained in bamboo charcoal nanoparticle

Kajian Produksi Nano Partikel dari Arang Bambu dengan Tumbukan Bola Baja Diameter 5/32 Inchi

Nanoparticle material attracts many researchers because Nanoparticle materials exhibit very different physical and chemical properties of bulk material, such as mechanical strength, electronics, magnetic, thermal stability, catalytic, and optical (Deraz et al., 2009). PSA (Particle Size Analyer) is a test to determine the size of a particlel with using a laser beam works. The size of the material that can be read by the PSA ranges from 0-1000 nm. PSA is able to measure particles in the form of emulsions, supplements and dry powders. SEM is one type of electron microscop that uses electron beams to describe the surface shape of the material being analyzed. From EDX test 2 million cycles can be seen that the biggest and most dominant element in this test is carbon C = 96.29%. While the results of EDX testing with engine speed of 1100rpm can be seen that the element of carbon (C) decreased to 92.77% and there are some elements that are missing and there are elements that have added percentage

Analisis Kestabilan Kendaraan Mini Truck Sang Surya Pada Saat Membelok

Analisis ini bertujuan untuk memperkirakan kecepatan kendaraan ketika membelok dalam radius putar tertentu dari jalan, tahu tentang kecepatan kritis ketika kendaraan mulai tergeser kesamping dan tidak dapat dikendalikan (Skidding) atau terguling (Toppling). Secara tidak langsung akan mendukung mengemudi pintar karena pengemudi dapat memperkirakan seberapa cepat kendaraan harus dijalankan ketika membelok dalam radius putar. Analisis ini menggunakan Kendaraan Mini Truck Sang surya, jenis mobil penumpang. Semua data dikumpulkan dan penulis menggunakan dua berat kendaraan yang berbeda, yaitu berat kendaraan dengan pengemudi (1318 Kg) dan berat kendaraan dengan penumpang dan barang (1708 Kg). Analisis ini untuk mengetahui kecepatan Critical Toppling dan kecepatan critical skidding dalam radius minimum dijalan yang sebesar 15 m, 50 m, 110 m, 370 m, 600 m dan menggunakan jalur dengan jalan aspal yang kering dan basah, dengan permukaan jalan yang datar. Untuk coefficient grip pada jalan yang kering sebesar : 0.8 dan pada jalan yang basah sebesar : 0.45. Dari hasil perhitungan dan perbandingan antara berat kendaraan dengan pengemudi (1318 Kg) dan berat kendaraan dengan penumpang dan barang (1708 Kg), pada kecepatan Critical Toppling menunjukkan bahwa berat kendaraan telah berpengaruh terhadap kendaraan mulai terjadi Toppling dalam radius minimum yang sama di jalan. Kecepatan Critical Skidding untuk kondisi jalan yang datar, kering dan basah dengan berat kendaraan yang berbeda (1318 Kg dan 1708 Kg) adalah kecepatanya sama dalam radius yang sama dijalan, hal tersebut tidak dipengaruhi dari berat beban kendaraan yang berbeda. Yang sangat berpengaruh pada saat Kecepatan Critical Skidding adalah dari koefisien grip dan radius minimum pada jala

Analisa Sifat Fisis Dan Mekanik Baja Karburising Dengan Bahan Arang Tempurung Kelapa

Pack carburizing merupakan metode karburisasi yang paling sederhana, yaitu menggunakan serbuk arang sebagai penambahan unsur Karbon. Tujuan penelitian carburizing ini adalah untuk mengetahui perubahan sifat baik fisis dan mekanis setelah mengalami proses carbirizing arang tempurung kelapa. Material yang digunakan adalah baja karbon rendah (mild steel) < 0,3 % C. Proses kaburisasi diawalin dengan mencampur arang tempurung kelapa 80% dan BaCO3 20% kemudian dimasukan ke dalam gerabah dengan posisi specimen di tengah. Dilanjutkan pemanasan dalam oven pada temperature 900 OC dengan waktu tahan 2 dan 4 jam kemudian dikeluarkan dan didiamkan di udara terbuka selama ± 2 jam, lalu di analisa dengan pengujian struktur mikro dan pengujian kekerasan. Dari hasil pengujian awal pada spesimen raw material termasuk golongan baja karbon rendah dengan unsur Karbon (C) 0,158%. Hasil pengamatan struktur mikro pada spesimen raw material lebih banyakkristal ferrit dibandingkan kristal perlit, Pada spesimen pack carburizing 2 jam di bagian tepi terdapat perlit halus dan sedikit ferrit hal ini disebabkan karena material sudah di karburising, pada spesimen pack carburizing 4 jam juga terdapat perlit halus yang lebih banyak dari 2 jam dan sedikit ferrit, semakin lama proses karburising semakin banyak pula kandungan perlit yang mengakibatkan semakin tinggi harga kekerasan.Pada spesimen pack carburizing 2 jam di bagian transisi terdapat perlit lebih banyak daripada ferrit, pada spesimen pack carburizing 4 jam bagian transisi terdapat perlit lebih lebih banyak dari 2 jam dan ferrit sedikit hal ini disebabkan difusi atom karbon masuk kedalam sampai kebagian transisi. Dari hasil pengujian kekerasan pada raw materials memiliki nilai kekerasan Vickers hampir sama dari titik terluar sampai pada titik inti yaitu sebasar 246.0 VHN. Pada spesimen carburizing dengan waktu tahan 2 jam pada titik ke dua mengalami kenaikan dengan nilai 250,2 VHN. Pada spesimen carburizing dengan waktu tahan 4 jam memiliki kekerasan 263,7 VHN sampai pada titik ke tiga

Studi Sifat Fisis Dan Mekanis Baja Karbonasi Padat Dengan Arang Kayu Legaran Berukuran 200 Mesh Dan Hasil Shaker Mill

The carburizing pack is the simplest carburizing method, which uses charcoal powder as an addition to the Carbon element. The purpose of this carburizing research is to determine the changes in the properties of steel, both physical and mechanical properties. The material used is low carbon steel (mild steel) <0.3% C. The variation here is using 200 mesh legaran wood charcoal and legeran charcoal from the shaker mill. The blurring process begins by mixing legaran 80% wood charcoal and 20% BaCO3, then put it into the pottery with the position of the specimen in the middle. Continued heating in an oven at 900 OC with a hold time of 2 hours then released and left in the open air for ± 1 day, then tested its hardness with micro vikers method using a Micro Hardness Tester and microstructure observation using an inverted metallurgical microscope From the results of the carburizing process of its hardness values in raw material 164 VHN on carbonization of charcoal measuring 200 mesh 192 VHN and on carbonization of charcoal from 210 VHN mill shakers. The price of violence shows a decrease caused by imperfect diffusion (the process of entry into steel) on carbonization. Keywords: Mild Steel, Pack Carburizing, Legaran Wood Charcoa

Kajian Produksi Nano Partikel Dari Arang Akasia Dengan Tumbukan Bola Baja Diameter 5/32 Inchi Dengan Perlakuan Naoh

Nanoparticles are particles measuring 1-100 nanometers. Nanoparticles aim to improve the stability of active substances and improve absorption. The advantages of nanoparticles are the ability to penetrate inter-cell spaces that can be penetrated by colloidal particles. In this study the materials used for the manufacture of nanoparticles came from acacia plant charcoal. This research uses top-down method in particle making.The tool used in this study is a modification of mils shakers with a motor speed of 900 Rpm, for 3 million cycles with a size of steel ball pounder that is 5/32 inch in size. From this test, the nanoparticles were tested in testing PSA, SEM and EDX. The PSA test aims to determine the size of the acacia charcoal particles. SEM testing aims to determine the shape of the particles being tested. EDX testing aims to determine the composition of acacia charcoal particles. In PSA testing the particles have reached nano size but some are still micro-sized. From SEM testing, the shape of the particles is imperfect and there are also particle clumps. From EDX testing, carbon elements are very dominant in particles compared to other elements

Karakterisasi Bola Baja Penumbuk Arang Dalam Proses High Energy Ball Milling Study Kasus Bola Baja Berukuran 5/32 Inchi

The collision was the meeting of two moving objects. On every collision apply conservation of momentum but it doesn't always apply conservation of mechanical energy because here in part due to heat is converted into energy collisions or changes shape. In this study the materials used for the manufacture of charcoal derived from the Acacia plant. Charcoal Acacia is a product obtained from imperfect combustion results against Acacia plants. This research uses tools of Shaker Mills to conduct High Energy Ball Milling process (HEBM). This tool is modified so that the steel balls collide with charcoal, with a speed of 1000 Rpm over 2.5 million cycles, with the size of the steel ball penumbukan 5/32 inches. This next test of steel ball is tested in a test of the Microstructure and hardness of the Vikers. Testing Micro Structure aimed to know the phase of the steel ball surface before and after the Collision are done. On testing the hardness of the Vikers performed on steel ball aims to find out the value of violence before and after the Collision are done. Keyword : Collision, HEBM, Micro Structure and Hardnes Tes

Kajian Produksi Nanopartikel Dari Arang Akasia Dengan Tumbukan Bola Baja Diameter 1/4 Inchi Dengan Perlakuan NaOH

The development of technology in various fields makes it very easy to do various things and provide many benefits. In the period from 2010 to 2020 it is predicted that there will be tremendous acceleration in the application of nanotechnology in the industrial world and this indicates that now the world is heading towards the nanotechnology revolution. One of the commonly developed materials is carbon material because of has a micro structure that has many advantages that can be used in industrial fields. Acacia charcoal is also the main ingredient in making carbon. Activated carbon is black, odorless, tasteless and has a large absorbency. There are two methods that can be used to make nanomaterials, namely top-down (grinding large material into small) and bottom up (arranging atoms into nanometer size). This research uses the top down method, and PSA, SEM, and EDX tests are carried out. The average results of the acacia charcoal PSA testing were 452.6 nm. And the results of EDX testing of acacia charcoal are known to be knownas carbon deposits in acacia charcoal at 96.55%. The average particle size is nanometer-sized, and cannot be said to be super smooth because the average PSA test results are carried out more than 100 nanometers

Analisa Sifat Mekanis Dan Struktur Mikro Baja SS 400 Setelah Carburizing Menggunakan Arang Kayu Asem Dan Quenching Dengan Oli Dan Air

This study aims to determine the effect of Asem wood charcoal in the heat treatment process using the carburizing method on SS 400 steel on mechanical properties and microstructure.In this study, the carburizing medium used was tamarind wood charcoal with a weight percentage of 60% and a CaCo3 catalyst of 40%. The temperature used is 8500C with a holding time of 60 minutes with a variation of 15w-40 oil and water quenching media.The results of the tensile test show that the carburizing material with variations of oil and water quenching media has more brittle properties than the raw material. The surface hardness value for raw material is 191.53 VHN, while for carburizing material with oil quenching media it is 412.00 VHN, while for carburizing material with water quenching media it is 508.64 VHN. The results of micro photos of carburizing material with water quenching media have a pearlite phase which is more dominant than raw material and carburizing material with oil quenching media

Karakterisasi Patikel Arang Akasia Hasil Tumbukan Mesin Ball Milling Dan Pemanasan Lanjut

A collision is a meeting of two moving objects. Every collision applies the law of conservation of momentum, but not always applies the law of conservation of mechanical energy because here some energy is converted into heat due to collision or changes in shape. In this study the material used for making charcoal comes from Akasial. Akasia Charcoal is a product obtained from the incomplete combustion of akasia. This study uses the Shaker Mills tool to carry out the High Energy Ball Milling (HEBM) process. This tool is modified so that the steel balls collide with each other with charcoal, with a speed of 900 Rpm for 2.5 million cycles, with a size of pounding steel balls ¼ inch. From this test the next steel ball is tested in the advanced heating test. The Advanced Warming Test aims to eliminate the water content in the akasia charcoal. Keywords: Collision, HEBM, Advanced Warmin