{"title":"Influence of Rotating Magnetic Field (RMF) on Dendrite Growth, Mechanical and Elastic Properties of Sn-Cu-Co Lead-Free Solder Alloy","authors":"A. El-Taher, H. Abd Elmoniem, Sara M. Mosaad","doi":"10.21608/ajnsa.2023.183687.1704","DOIUrl":"https://doi.org/10.21608/ajnsa.2023.183687.1704","url":null,"abstract":"Dendritic microstructures are a common issue in casting applications, leading to subpar mechanical properties. A new and innovative approach for combating this problem is through the application of mechanical stirring using an RMF. The solidification microstructures, mechanical and elastic characteristics of Sn-0.7wt%Cu-xCo (where x = 0.05 and 0.5) alloys were analyzed with and without the application of an RMF. The results revealed that, in the absence of an RMF, both solder alloys displayed extensive and undesirable columnar formations of the dendritic β-Sn phase. However, the application of an RMF led to a significant modification of the solidification microstructure, transforming the dendritic β-Sn phase from columnar to equiaxed, resulting in fragmentation of the dendrites. As well, the average size of (Cu,Co) 6 Sn 5 IMCs was reduced, resulting in successful suppression of the growth rate of IMCs with the use of RMF. Tensile testing showed that the Sn-0.7wt%Cu-0.05Co alloy with RMF exhibited the highest strength across a range of temperatures and strain rates. Additionally, the ultimate tensile strength, yield strength, yield modulus, and elongation percentage of the Sn-Cu-0.05Co alloy with RMF were approximately 29.2%, 31.8%, 29.2% and 7.1% at 25°C higher compared to that of the RMF-free Sn-Cu-0.05Co alloy. By evaluating the Poisson's ratio, Young's modulus, shear modulus, and bulk modulus, it was determined with a high level of confidence that the application of RMF during solidification made the Sn-7Cu-0.5Co alloy more ductile, while the Sn-7Cu-0.05Co alloy demonstrated increased strength compared to their counterparts without RMF.","PeriodicalId":8110,"journal":{"name":"Arab Journal of Nuclear Sciences and Applications","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48784008","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}
{"title":"Formation Charginos and Dark matter from electron- positron annihilation","authors":"Zainab Helmy, asmaa amein, Mona Ahmed","doi":"10.21608/ajnsa.2023.90549.1502","DOIUrl":"https://doi.org/10.21608/ajnsa.2023.90549.1502","url":null,"abstract":".","PeriodicalId":8110,"journal":{"name":"Arab Journal of Nuclear Sciences and Applications","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46118123","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}
ramadan Abouelkher, ashraf Abdel Lateef, Abd el-fattah Helal
{"title":"REE Analyses in Some Geological Standard Reference Materials utilizing LA-ICP-MS and ICP-MS Techniques","authors":"ramadan Abouelkher, ashraf Abdel Lateef, Abd el-fattah Helal","doi":"10.21608/ajnsa.2023.183010.1699","DOIUrl":"https://doi.org/10.21608/ajnsa.2023.183010.1699","url":null,"abstract":"","PeriodicalId":8110,"journal":{"name":"Arab Journal of Nuclear Sciences and Applications","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42866943","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}
{"title":"Preparation of magnetically separable Fe3O4 @ SiO2@ FeOOH nanoparticles for effective removal of Cr (VI) from aqueous solution","authors":"A. Soliman, I. Ali, M. Khalil","doi":"10.21608/ajnsa.2023.171336.1657","DOIUrl":"https://doi.org/10.21608/ajnsa.2023.171336.1657","url":null,"abstract":"In this study, Fe 3 O 4 @SiO 2 @FeOOH has been prepared and used as an adsorbent to eradicate Cr(VI) from aqueous media. Fe 3 O 4 @SiO 2 @FeOOH has been characterized by various characterization methods. Various factors on chromium adsorption such as the effect of pH, temperature, adsorbent dose, Cr(VI) concentration","PeriodicalId":8110,"journal":{"name":"Arab Journal of Nuclear Sciences and Applications","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42526245","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}
S. Ibrahim, A. Ali, wagdi Kansouh, Gamaal Mesbah, A. Doma, H. Hassan, A. El-Khatib
{"title":"Elastic Rubber Composites as Shield against Photons and Neutrons.","authors":"S. Ibrahim, A. Ali, wagdi Kansouh, Gamaal Mesbah, A. Doma, H. Hassan, A. El-Khatib","doi":"10.21608/ajnsa.2023.178150.1693","DOIUrl":"https://doi.org/10.21608/ajnsa.2023.178150.1693","url":null,"abstract":"","PeriodicalId":8110,"journal":{"name":"Arab Journal of Nuclear Sciences and Applications","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44758778","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}
A. Hassan, M. Refaat, S. Fathy, M. Ragaa, Soheir A. Osman, A. Raafat
{"title":".Silver Nanoparticles Attenuate Inflammation aggravation in Hepatocellular Carcinoma in Rats.","authors":"A. Hassan, M. Refaat, S. Fathy, M. Ragaa, Soheir A. Osman, A. Raafat","doi":"10.21608/ajnsa.2023.180669.1698","DOIUrl":"https://doi.org/10.21608/ajnsa.2023.180669.1698","url":null,"abstract":"","PeriodicalId":8110,"journal":{"name":"Arab Journal of Nuclear Sciences and Applications","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48370118","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}
{"title":"Taylor Series Approach to Grey Multiobjective Integer linear Fractional Programming Problem and A case study for environmental economic energy dispatch","authors":"O. Saad, H. Taha","doi":"10.21608/ajnsa.2023.175458.1686","DOIUrl":"https://doi.org/10.21608/ajnsa.2023.175458.1686","url":null,"abstract":"","PeriodicalId":8110,"journal":{"name":"Arab Journal of Nuclear Sciences and Applications","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46240768","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}
{"title":"Adding a correction terms for the shell of the Liquid Drop Model and the Quark-Like Model","authors":"fadwa aldawdy, F. Al-jomaily","doi":"10.21608/ajnsa.2023.167598.1646","DOIUrl":"https://doi.org/10.21608/ajnsa.2023.167598.1646","url":null,"abstract":"This paper aims to add a corrective term to Liquid Drop Model (LDM) and Quark – Like Model (QLM), which is the term for closed shells of magic nuclei. This was done by relying on valence nucleons. Fitting to the terms volume, surface, Coulomb repulsion, asymmetry, pairing and shell term in LDM was performed using the least-square method LSM by designing a code in Fortran 95 for 261 magic nuclei within the range (2≤Z≤92), this correct and balance nuclear binding energy values, especially for magic nuclei, with experimental values. A fit of the QLM has also been made in order to correct the values of the nuclear binding energy. The standard deviation (σ) was used as a statistical tool to determine the extent to which the models can be adopted to explain the behavior of magic nuclei, in addition to the high accuracy in determining the experimental nuclear binding energy. The values of the standard deviation are σ= 0.144 and σ= 0.84 for the updated formulas of the Generalized Liquid Drop Mode (GLDM) and the Generalized Quark Like Model (GQLM) respectively.","PeriodicalId":8110,"journal":{"name":"Arab Journal of Nuclear Sciences and Applications","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42138917","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}
{"title":"Leaching the Co-Precipitated Thorium from Light Rare Earth Double Sulphate and Preparation of High-Grade Thorium Concentrate","authors":"Ahmed Elbatrek","doi":"10.21608/ajnsa.2023.171898.1664","DOIUrl":"https://doi.org/10.21608/ajnsa.2023.171898.1664","url":null,"abstract":"","PeriodicalId":8110,"journal":{"name":"Arab Journal of Nuclear Sciences and Applications","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42189005","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}
{"title":"Radiation Shielding Against Neutron Using Different Fillers: Review Study","authors":"Ebtsam Mohamedy","doi":"10.21608/ajnsa.2023.172630.1670","DOIUrl":"https://doi.org/10.21608/ajnsa.2023.172630.1670","url":null,"abstract":"","PeriodicalId":8110,"journal":{"name":"Arab Journal of Nuclear Sciences and Applications","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43196805","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}