International Journal of Advanced Technology in Mechanical, Mechatronics and Materials最新文献

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The Regression Models of Impact Strength of Coir Coconut Fiber Reinforced Resin Matrix Composite Materials 椰壳纤维增强树脂基复合材料冲击强度的回归模型

International Journal of Advanced Technology in Mechanical, Mechatronics and Materials Pub Date : 2020-03-30 DOI: 10.37869/ijatec.v1i1.12

Muhamad Fitri, S. Mahzan

{"title":"The Regression Models of Impact Strength of Coir Coconut Fiber Reinforced Resin Matrix Composite Materials","authors":"Muhamad Fitri, S. Mahzan","doi":"10.37869/ijatec.v1i1.12","DOIUrl":"https://doi.org/10.37869/ijatec.v1i1.12","url":null,"abstract":"The need of coconuts in Indonesia is relatively high. The use of large quantities of coconuts produces large amounts of organic waste from coco fiber, which tends to become waste if it is not used to be beneficial for humans.One of the potential uses of coconut fiber is as a reinforcement of natural fibers in polymer matrix composite materials. Recently, the applications of composite materials have been expanded widely including structural angine component which whitstand certain load like impact load. But most of them used synthetic fiber. Although the use of natural fibers as reinforcement in composite materials has been widely studied, their use is still limited because natural fibers have their own advantages and disadvantages. The purpose of this study was to measure the impact strength of specimens of coconut fiber reinforced polymer matrix composite material, and to determine the effect of the length and concentration of coconut fiber on its impact strength. A significant and valid regression model was also generated in this research, that states the relationship between fiber length and fiber content of resin matrix composite material to its impact strength. The result shows that the impact strength of the samples were influenced by fiber content and fiber length. The regression models for the impact strength of resin composite reinforced with coconut fiber is Y = 4.44 +0.180 X1 – 0.52 X2 Where: Y = Impact Strength (kJ/m2), and X1= Fiber length (mm), and X2= Fiber content (%).","PeriodicalId":365201,"journal":{"name":"International Journal of Advanced Technology in Mechanical, Mechatronics and Materials","volume":"112 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133296737","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: 3

New Method of Fabrication of Fe80Cr20 Alloy: Effect of its Technique on Crystallite Size and Thermal Stability 制备Fe80Cr20合金的新方法:工艺对晶粒尺寸和热稳定性的影响

International Journal of Advanced Technology in Mechanical, Mechatronics and Materials Pub Date : 2020-03-30 DOI: 10.37869/ijatec.v1i1.11

D. Feriyanto, Supaat Zakaria

{"title":"New Method of Fabrication of Fe80Cr20 Alloy: Effect of its Technique on Crystallite Size and Thermal Stability","authors":"D. Feriyanto, Supaat Zakaria","doi":"10.37869/ijatec.v1i1.11","DOIUrl":"https://doi.org/10.37869/ijatec.v1i1.11","url":null,"abstract":"This paper focuses on the effect of the new method on the crystallite size and thermal stability of Fe80Cr20 alloy powder. Generally, the ball milling sample and ultrasonic technique sample have dissatisfaction result when applied at high temperature. In addition, the combination of both techniques not yet carried out. Therefore, this study aim to investigate an appropriate technique to produce smallest crystallite size in order to improve the thermal stability. The new method of mechanical alloying (mill) and ultrasonic technique (UT) were applied in order to reduce the crystallite size and improve thermal stability. The new method is called as combination treatment. This condition allows the enhancement of thermal stability of Fe80Cr20 alloy powder. In this study, mechanical alloying process was carried out by milling time of 60 hours. Then, the ultrasonic technique was performed at frequency of 35 kHz at 3, 3.5, 4, 4.5, and 5 hours. From XRD analysis, it was found that the broader peaks indicated the smaller crystallite size. It shows that the combination treatment (milled and UT) reduce the crystallite size up to 2.171 nm when mechanically alloyed for 60 hours (milled 60 h) and followed by ultrasonic treatment for 4.5 hours (UT 4.5 h). Smallest crystallite size enhance the thermal stability up to 12.7 mg which shown by TGA analysis during 1100 0C temperature operation. The combination treatment is method which is effective to fabricate Fe80Cr20 alloy powder.","PeriodicalId":365201,"journal":{"name":"International Journal of Advanced Technology in Mechanical, Mechatronics and Materials","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121955466","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

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