Master Theses
Master Theses
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Now showing items 201-220 of 307
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Penentuan Persentase Pembentukan Fasa Austenit pada Transformasi Bainit Baja Mangan (FeMn) dengan Validasi Microhardness dan Macrohardness pada Temperatur 500ºC
(Universitas Sumatera Utara, 2008)An investigation was done to a Hadfield 3401 steel used for railroad which formed in heat treatment at 1200 oC and then done with water quenching. The material was subjected to predict the change of microstructure’s by ... -
Karakterisasi Ijuk pada Papan Komposit Ijuk Serat Pendek sebagai Perisai Radiasi Neutron
(Universitas Sumatera Utara, 2008)Palmyra had been characterized at short palmyra fiber composite board to find out that palmira composite board could be used for neutron radiation shield. The observation got : palmyra’s fiber density was 1,136 gr/cm3, the ... -
Pembuatan Keramik Berpori Cordierite (2MgO. 2AI2O3, 5SiO2) sebagai Bahan Filter Gas
(Universitas Sumatera Utara, 2006)The local raw materials: MgCO3, y-Al203 and SiO2 have been mixed by using ball mill along as 48 hours (ratio of powder with water is 1:1), dried in the oven at 110°C for 24 hours, sieved until through out 200 mesh and then ... -
Karakteristik Termoplastik Polietilena dengan Serat Batang Pisang sebagai Komposit untuk Bahan Palet Kayu
(Universitas Sumatera Utara, 2008)The research intends to use Serat Batang Pisang (SBP) as to strengthened of Polietilena (PE) composit Mixturing of PE is made by 10 %, 20%, 30%, and 40%. Pieces 0f PE mixed with SBP using hot press machine by having variation ... -
Komputasi Numerik untuk Analisis Karakteristik Keramik Psz dengan Aditif Mgo, Cao Berbasis Matlab
(Universitas Sumatera Utara, 2008)Partially Stabilized ZirkoniaI (PSZ) doped CaO dan MgO is a toughness ceramic so that can be used by cutting tool, bioceramic, refractory material or other that need high toughness and resistance on useful in high temperature. ... -
Pengaruh Aditif Lateks dan Komposisi terhadap Karakteristik Beton dengan Menggunakan Limbah Padat (Sludge) Industri Kertas
(Universitas Sumatera Utara, 2009)The making of structural light weight concrete of structural material has been done using various raw materials based on: sludge, sand, cement, and latex resin. The variation compositions of sludge were: 0, 25, 50, 75, and ... -
Efek Larutan Elektrolit dan Temperatur terhadap Sifat Ntc/Ptc Karbon Tempurung Kelapa, Karbon N.330 dan Grafit
(Universitas Sumatera Utara, 2008)A research has done the effect of temperature on coconut carnel carbon, carbon N.330, and graphit in aced solution, base solution, and water have been carried out. All of carbon types are soaked in acid solution, base ... -
Pemanfaatan Limbah (Oil Sludge) sebagai Bahan Utama dalam Pembuatan Bata Konstruksi Paving Block
(Universitas Sumatera Utara, 2009)Fabrication of Paving Block had been done using strict materials of aggregate, oil sludge of PT Pertamina Pangkalan Susu, in which cements and water glasses were used as addesive materials as well as sufficient water. The ... -
Perubahan Fasa Baja Mangan (FeMn) Hadfield 3401 pada Proses Pemanasan dan Perlakuan Pendinginan Cepat (Water Quenching) dan Lambat (Air Cooling)
(Universitas Sumatera Utara, 2007)Hadfield steel was subjected to solution treatment by heating at a temperature of 1000ºC-1090ºC and then water quenched. The as-quenched material was then investigated for the development of microstructure in an reheat-treatment ... -
Pembuatan Komposit Metal Al Alloy Nano Keramik Sic dan Karakterisasinya
(Universitas Sumatera Utara, 2009)Metal Matrix Composites (MMC) have good performance in strength and resistance to fatigue resistance. Besides, using the ceramic materials SiC as reinforcement will give the high improvement resistance in high temperature ... -
Pengaruh Aditif Sio2 dan Suhu Sintering terhadap Karakteristik dari Keramik Magnet Bao.6Fe2O3
(Universitas Sumatera Utara, 2006)Magnet permanent BaO.6Fe203 has been made with raw materials such as Fe203 from waste of PT.Krakatau Steel, and BaCO3. The application of Magnet permanent BaO.6Fe203 is for components of electric motor, holder, flow meter ... -
Pengaruh Penambahan Al2TiO5 pada Pembuatan Keramik Al2O3 terhadap Sifat Fisis dan Mikrostrukturnya
(Universitas Sumatera Utara, 2007)The Ceramic production of Al2O3 is conducted by addition of Al2TiO5 as the additive, the varieties of the addition can be 10%, 15%, 20%, 25%, and 30% weight. From the results of the testing, analysis and observation are ... -
Pembuatan Keramik Paduan Zirkonia (ZrO2) dengan Alumina (Al2O3) dan Karakterisasinya
(Universitas Sumatera Utara, 2007)The making ceramic composite alumina ( Al2O3) with ceramic zirkonia ( ZrO2) what is stabilized with additive CaO. Where materials ZrOCl2.8H2O as source ZrO2 and CaCO3 as source CaO, is then obtained phase cubic zirkonia ( ... -
Pembuatan Papan Gipsum Plafon dengan Bahan Pengisi Limbah Padat Pabrik Kertas Rokok dan Perekat Polivinil Alkohol
(Universitas Sumatera Utara, 2009)This study was aimed to utilize the solid waste of cigarette paper mill and PVA glue which is used as the filling material for gypsum board. This study was administered based on the ASTM C473 test to acgvire the optimum ... -
Pengaruh Aditif Serbuk Kayu dalam Pembuatan keramik Berpori untuk Digunakan sebagai Filter Gas Buang
(Universitas Sumatera Utara, 2008)This research means to see the effect of the wood particle as additive in making the porous ceramic to be used as exhaust gases filter. The composition of basic ceramic substance that used caolin 30%, feldsfar 30%, clay ... -
Pembuatan dan Karakterisasi Aspal Beton Berbasis Dreg dan Grit
(Universitas Sumatera Utara, 2009)Research about forming and concrete characterizaton was done, the research based on dregs and grits. This research was done by mixing method with concrete from dregs and grits to reduce sand, where sand ratio variations ... -
Studi Analisis Simulasi tentang Korelasi Suhu Sintering dan Persentase Aditif Mullit 3al2o3.2sio2 dengan Sifat Mekanik Keramik Alumina Al2o3
(Universitas Sumatera Utara, 2007)Telah dilakukan penelitian analisis simulasi korelasi suhu sintering dan persentase aditif mullit 3Al2O3.2SiO2 dengan sifat mekanik keramik alumina Al2O3. -
Pemanfaatan Limbah Padat Pulp Dregs Sebagai Pengisi Batako Dengan Perekat Tepung Tapioka
(Universitas Sumatera Utara, 2009)Batako and it’s characteristics had been investigate with the used of pulp solid waste dregs as filler and tapioca as adhesiveness. This research has been done by mixing method by using mixer. The aim is to have dregs as ... -
Analisis Proses Paduan Transformasi Bainitik Baja Mangan
(Universitas Sumatera Utara, 2008)The mechanical properties of austenit manganese steel is various according to a certain amount of carbon and manganese in solid solution. When amount of carbon added continuosly in solid solution will decrease the hardness ... -
Analisis Simulasi Fraksi Baja Mangan (Fe Mn) pada Kondisi Pendinginan Udara (Air Cooling)
(Universitas Sumatera Utara, 2007)Either bainitic phase or pearlitic phase which formed in heattreatment of Hadfield mangan steel in temperature of 450, 500,550 either 600 °C with holding time 30 minute and 60 minute can be plot by simulation program of ...
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