Journal of Technomaterial Physics最新文献_第3页

Synthesis of Conductive Carbon Sheet From Coconut Fiber with the Addition of Potassium Hydroxide (KOH) Activator 添加氢氧化钾(KOH)活化剂的椰子纤维合成导电碳片

Journal of Technomaterial Physics Pub Date : 2022-02-28 DOI: 10.32734/jotp.v4i1.8177

Dian Surya Sinaga, N. Indayaningsih

{"title":"Synthesis of Conductive Carbon Sheet From Coconut Fiber with the Addition of Potassium Hydroxide (KOH) Activator","authors":"Dian Surya Sinaga, N. Indayaningsih","doi":"10.32734/jotp.v4i1.8177","DOIUrl":"https://doi.org/10.32734/jotp.v4i1.8177","url":null,"abstract":"Research has been carried out on manufacturing conductive carbon sheets using carbon as raw material from coconut fiber with a Potassium Hydroxide (KOH) activator. First, activation was carried out using 1000 ml of 6M KOH solution mixed with 100 grams of carbon at 100℃ for 72 hours. Next, the carbon is pyrolyzed at temperatures of 900℃, 1100℃, and 1300℃ for 2 hours. Next, the pyrolysis carbon was washed with 2M HCl for 24 hours and washed with distilled water until the pH was neutral. Electrical resistance measurements were made with torque variations of 10, 20, and 30 kgf. cm using the four-point probe method, then the conductivity value was calculated. Finally, carbon characterization was carried out using the XRD tool. The increase in pyrolysis temperature causes the carbon conductivity to increase, which is 2.3855- 4.2340 S/cm at 900℃ and 6.8203-11.4577 S/cm at 1300℃. XRD analysis showed a sharp and narrow increase in diffraction peaks with each increase in pyrolysis temperature, indicating that carbon has a crystal structure close to graphite which is more ordered than carbon without an activator.","PeriodicalId":323487,"journal":{"name":"Journal of Technomaterial Physics","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133938616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Fiber Length on The Composite Properties of Salacca zalacca Pellet Fibers – Epoxy 纤维长度对Salacca zalacca颗粒纤维-环氧复合性能的影响

Journal of Technomaterial Physics Pub Date : 2022-02-28 DOI: 10.32734/jotp.v4i1.6914

Andreas, P. Sinuhaji

引用次数: 0

Effect of Additional Cu on Structural and Optical Properties of TiO2 Synthesized with Sol-Gel Method 外加Cu对溶胶-凝胶法制备TiO2结构和光学性能的影响

Journal of Technomaterial Physics Pub Date : 2022-02-28 DOI: 10.32734/jotp.v4i1.7851

Anggi Natasya Sidauruk, M. I. Amal, E. Marlianto

{"title":"Effect of Additional Cu on Structural and Optical Properties of TiO2 Synthesized with Sol-Gel Method","authors":"Anggi Natasya Sidauruk, M. I. Amal, E. Marlianto","doi":"10.32734/jotp.v4i1.7851","DOIUrl":"https://doi.org/10.32734/jotp.v4i1.7851","url":null,"abstract":"In this study, TiO2 doped with Cu has been successfully synthesized using the sol-gel method by varying the addition of Cu and the calcination temperature. Sample preparation was started by mixing 0.75 mL of 37% HCl in 49.25 mL of 96% ethanol and stirred with a magnetic stirrer for 10 minutes. Then 10 mL of TTIP (Titanium Tetraisopropoxide) was added dropwise using a dropper and the solution was stirred again with a magnetic stirrer for 60 minutes. Then added Cu with variations of 1%, 2%, 3%, 4%, and 5% and stirred again for 60 minutes using a magnetic stirrer. The sol solution was then put into the furnace at a temperature of 100°C for 3 days. The crystalline sol solution was then mashed with a mortar to a submicron size, then washed with 50 mL of Aquades and stirred using a magnetic stirrer for 10 minutes. The washed samples were then dried in a furnace at a temperature of 100°C for 1 day. Followed by calcination for 3 hours with temperature variations of 450°C, 500°C, 550°C and 600°C to release the gases in the nanoparticles. Cu-doped TiO2 nanoparticles were characterized using test equipment such as XRD, SEM-EDX, and UV-Vis. From the results of XRD analysis obtained 3 phases namely Brookite, Rutile and Anastase, and the crystal size is unstable and the shape of the sample particles is tetragonal. The results of the SEM-EDX analysis showed that the content of the sample was in accordance with the experiments that had been carried out. The results of UV-Vis analysis show that the wavelength is inversely proportional to the bandgap energy.","PeriodicalId":323487,"journal":{"name":"Journal of Technomaterial Physics","volume":"137 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121048743","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Mass Addition on Physical Properties and Mechanical Properties of Agave Sisalana Fiber Composites - Epoxy 质量添加对环氧龙舌兰纤维复合材料物理性能和力学性能的影响

Journal of Technomaterial Physics Pub Date : 2022-02-28 DOI: 10.32734/jotp.v4i1.7082

Antonius Sutanto Sinaga, T. Sembiring

引用次数: 0

Automatic Aquarium Cleaner and Fish Feeder Based on Microcontroller Atmega8535 基于单片机Atmega8535的自动鱼缸清洗机和喂鱼机

Journal of Technomaterial Physics Pub Date : 2021-08-31 DOI: 10.32734/jotp.v3i2.6157

B. Perangin-angin, Teopilus Andri Putra Ginting

引用次数: 0

Soil Moisture Monitoring System in Arugula Plants (Eruca Sativa) Using Microcontroller Esp8266 NodeMCU 基于Esp8266单片机的芝麻菜土壤水分监测系统

Journal of Technomaterial Physics Pub Date : 1900-01-01 DOI: 10.32734/jotp.v3i2.5488

B. Perangin-angin, H. Simanjuntak

引用次数: 0

Mechanical Properties Analysis of Medium Carbon Steel Heated at 850°C by Quenching in NaOH Solution 850℃加热中碳钢NaOH溶液淬火力学性能分析

Journal of Technomaterial Physics Pub Date : 1900-01-01 DOI: 10.32734/jotp.v3i2.6533

S. Sitorus, P. Sinuhaji

引用次数: 0

Battery on Carburization ST 37 Steel st37钢渗碳电池

Journal of Technomaterial Physics Pub Date : 1900-01-01 DOI: 10.32734/jotp.v3i2.5810

M. D. Sebayang

{"title":"Battery on Carburization ST 37 Steel","authors":"M. D. Sebayang","doi":"10.32734/jotp.v3i2.5810","DOIUrl":"https://doi.org/10.32734/jotp.v3i2.5810","url":null,"abstract":"A surface hardening process by adding carbon to its surface without changing the core properties of the material is called the carburization process. This process is carried out at the austenite temperature so that the carbon can diffuse into the phase. This process can only be done on low carbon steels with a content of below 0.25%. This research uses ST 37 steel which is a low content steel with a carbon content of 0.18%. This type of steel is surface hardened with a carburizing temperature of 850°C for a long lasting time of 1 hour, then it is carried out under moderate cooling with outside air media. This research produces a carburizing method with carbon battery media that easily breaks down into steel, which occurs in carbon batteries at temperatures below 723°C. And change its mechanical properties from the comparison of the initial mechanical properties of the specimen. Carburizing with battery rock media is more efficient at temperatures below 723°C. Because of at temperatures below austenite or below the carburizing temperature of carbon from the batteries, it can absorb the surface of the steel even though the amount is still very small. Because the temperature is below the austenite temperature, the absorbed carbons cannot diffuse as happened in the carburization process, but the absorbed carbons can bind the grain boundaries so that they change their hardness by 4%. The microstructure in the research that occurs in this process has nothing to change its phase because the temperature does not reach the austenite temperature.","PeriodicalId":323487,"journal":{"name":"Journal of Technomaterial Physics","volume":"2008 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125594294","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Analysis of the Effect of Heating Temperature on Tension Strength, Elongation and Function Clusters on Composite Tube Aerial Fiber Optic Cable G.652D-STEL-K-036-2012 加热温度对复合管航空光缆g . 652d - steel - k -036-2012抗拉强度、伸长率和功能团簇的影响分析

Journal of Technomaterial Physics Pub Date : 1900-01-01 DOI: 10.32734/jotp.v3i2.6831

H. Herman, B. Budiarto, M. D. Sebayang

{"title":"Analysis of the Effect of Heating Temperature on Tension Strength, Elongation and Function Clusters on Composite Tube Aerial Fiber Optic Cable G.652D-STEL-K-036-2012","authors":"H. Herman, B. Budiarto, M. D. Sebayang","doi":"10.32734/jotp.v3i2.6831","DOIUrl":"https://doi.org/10.32734/jotp.v3i2.6831","url":null,"abstract":"The composite material of the fiber optic cable tube (G.652D-Stel-K-036-2012) or Polybutylene Terephthalate (PBT)-Master Batch MB) has been tested for tensile strength, elongation, and functional groups for fiber optic tube cladding materials. The purpose of this study was to determine the effect of heating temperatures of 2500C, 2550C, and 2600C on tensile strength, elongation, and functional groups in PBT-MB composite tube for fiber optic tube cladding material. The PBT-MB composite material was made by mixing PBT (80% by weight) with MB (20% by weight) in a ball mill. Then put together and processed into a tube on the extruder. Tensile and elongation strength was tested bytensile test, functional group test with FTIR, and humidity test. The results of the tensile test and elongation test increased with increasing heating temperature and still met the specified standard. The results of the functional group test showed that there was a CH bond from the PBT Tube at the highest wave peak, namely 2923.54 cm-11,725.10 cm-1,there was also a CH Aldehydes bond at a wavelength of 2852.19 cm-1,935.30 cm-1,916.02cm-1,873.59 cm -1,811.88 cm-1, the carbonyl bond C=C at a wavelength of 1708.61 cm-1,and the last is an Aromatic bond at a wavelength of 1504.20 cm-1. The chemical bonds in the test compounds were PBT-MB tube composites. From all the tests carried out, it was concluded that the variation of temperature on the manufacture of PBT-MB tube composites was very influential on the quality and still met the established standards.","PeriodicalId":323487,"journal":{"name":"Journal of Technomaterial Physics","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133993370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Machine Optimization of SNK HF Fabrication Plant in PT. Komatsu Indonesia with FMEA Method and Overall Equipment Effectiveness (OEE) 基于FMEA方法和整体设备效率(OEE)的印尼小松PT公司SNK HF制品厂设备优化

Journal of Technomaterial Physics Pub Date : 1900-01-01 DOI: 10.32734/jotp.v3i2.6635

Titus Argarino, Melya Dyanasari Sebayang, Bantu Hotsan Manullang

引用次数: 0