Pub Date : 2018-10-01DOI: 10.21608/ejs.2018.148249
A. A. El-khalek, A. Mahmoud, F. A. el-Khalek
Sn-Zn alloy has been taken as one of the most important lead free solder alloys due to toxicity and alpha radiation effects of lead impurities. Strain-time relations of Sn-5 wt.%Zn and Sn-5 wt.%Zn-0.5 wt.%Al2O3 alloys were obtained under different constant stresses (10-25 MPa) over a temperature range from 333 K to 393 K. The results of this study shows the transient creep parameters dependence on the testing temperature and the applied stress of both compounds. This work, study the effect of adding Al2O3 nano-particles to Sn-5 wt.%Zn on the thermal, structural and tensile creep properties. The addition of Al2O3 nano-particles slightly changed the thermal properties, but improved the tensile creep resistance.
{"title":"Enhancement of Structural and Creep Properties of Sn-5 wt% Zn Solder Reinforced with Nano-metric Particles of Al2O3","authors":"A. A. El-khalek, A. Mahmoud, F. A. el-Khalek","doi":"10.21608/ejs.2018.148249","DOIUrl":"https://doi.org/10.21608/ejs.2018.148249","url":null,"abstract":"Sn-Zn alloy has been taken as one of the most important lead free solder alloys due to toxicity and alpha radiation effects of lead impurities. Strain-time relations of Sn-5 wt.%Zn and Sn-5 wt.%Zn-0.5 wt.%Al2O3 alloys were obtained under different constant stresses (10-25 MPa) over a temperature range from 333 K to 393 K. The results of this study shows the transient creep parameters dependence on the testing temperature and the applied stress of both compounds. This work, study the effect of adding Al2O3 nano-particles to Sn-5 wt.%Zn on the thermal, structural and tensile creep properties. The addition of Al2O3 nano-particles slightly changed the thermal properties, but improved the tensile creep resistance.","PeriodicalId":445633,"journal":{"name":"Egyptian Journal of Solids","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122974336","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}
Pub Date : 2018-10-01DOI: 10.21608/ejs.2018.148254
N. Hendawy, T. Y. Elrasasi, M. El‐Mansy
Perylene/Polycarbonate composite (PPC) layers were prepared by solution-casting method. The optical absorption of PPC was studied in the range (400-1100 nm) for different concentrations of Perylene from 10 ppm up to 200 ppm. It showed absorption characteristic peak at 574 nm which increased with dye concentration. The detection of fluorescence of polymer composite illustrated a fluorescence peak at 612 nm with maximum intensity at 200 ppm. The polymer composites were characterized by using DSC, TGA up to 600C, and FT-IR in the range (400-4000 cm) which did not illustrate any structure variation with the addition of Perylene dye up to 200 ppm. Bulk resistances, conductivity and dielectric parameters were studied.
{"title":"Optical, Electrical And Structure Investigation of Perylene Doped Polycarbonate","authors":"N. Hendawy, T. Y. Elrasasi, M. El‐Mansy","doi":"10.21608/ejs.2018.148254","DOIUrl":"https://doi.org/10.21608/ejs.2018.148254","url":null,"abstract":"Perylene/Polycarbonate composite (PPC) layers were prepared by solution-casting method. The optical absorption of PPC was studied in the range (400-1100 nm) for different concentrations of Perylene from 10 ppm up to 200 ppm. It showed absorption characteristic peak at 574 nm which increased with dye concentration. The detection of fluorescence of polymer composite illustrated a fluorescence peak at 612 nm with maximum intensity at 200 ppm. The polymer composites were characterized by using DSC, TGA up to 600C, and FT-IR in the range (400-4000 cm) which did not illustrate any structure variation with the addition of Perylene dye up to 200 ppm. Bulk resistances, conductivity and dielectric parameters were studied.","PeriodicalId":445633,"journal":{"name":"Egyptian Journal of Solids","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125956583","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}
Pub Date : 2018-10-01DOI: 10.21608/ejs.2018.148252
{"title":"Study of the Optical Characteristics of V2O5-Li2OP2O5 Glass System","authors":"","doi":"10.21608/ejs.2018.148252","DOIUrl":"https://doi.org/10.21608/ejs.2018.148252","url":null,"abstract":"","PeriodicalId":445633,"journal":{"name":"Egyptian Journal of Solids","volume":"12 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120901344","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}
Pub Date : 2018-10-01DOI: 10.21608/ejs.2018.148255
G. M. Mahmoud, F. Terra
Hall effect experimental procedures was used for determining the electrical resistivity, electron mobility (μe), carrier concentration (η), magnetoresistance (MR) and anomalous Hall effect (AH) as a function of temperature .The obtained curves are discussed in detail. The AH effect is defined as the zero field extrapolation of the high field data. An experiment illustrates the magnetic sensing ability of InSb single crystal was designed, where the InSb resistance value changed under applying external direct magnetic field, for insuring the high sensitivity to the magnetic field of such III-V material.
{"title":"Galvanomagnetic Properties and Anomalous Hall Effect of n-InSb single Crystal and its Device","authors":"G. M. Mahmoud, F. Terra","doi":"10.21608/ejs.2018.148255","DOIUrl":"https://doi.org/10.21608/ejs.2018.148255","url":null,"abstract":"Hall effect experimental procedures was used for determining the electrical resistivity, electron mobility (μe), carrier concentration (η), magnetoresistance (MR) and anomalous Hall effect (AH) as a function of temperature .The obtained curves are discussed in detail. The AH effect is defined as the zero field extrapolation of the high field data. An experiment illustrates the magnetic sensing ability of InSb single crystal was designed, where the InSb resistance value changed under applying external direct magnetic field, for insuring the high sensitivity to the magnetic field of such III-V material.","PeriodicalId":445633,"journal":{"name":"Egyptian Journal of Solids","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129628531","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}
Pub Date : 2018-10-01DOI: 10.21608/ejs.2018.148253
Shaimaa Khaled Nour El-Deen, Hatem M. Elborai, H. Sayour, Ashraf Yahia
A low-cost wireless sensor network (WSN) solution for real-time monitoring of water quality is introduced and experimentally demonstrated. The investigated system provides monitoring of ammonia concentration in water which plays a critical role for aquatic organisms due to its toxic and hazardous effects on them. Additionally, the system can sense water pH, water temperature, and ambient temperature. It is capable of periodically sensing different parameters, then sending parameters captured data to a virtual cloud called ThingSpeak that providing monitoring data remotely via internet through mobile phone or PC and analyzing them to send alert to the user when any parameter’s value is out of its safety range. The proposed system can be used in several areas interested in water quality monitoring such as monitoring and contamination detection of water bodies (lakes, rivers, ponds, etc.). Also, it provides water quality monitoring in aquaculture, and aquaponics farms that help in enhancing food productivity and food security. Furthermore, it can be used for drinking water monitoring, irrigation water monitoring, etc.
{"title":"Wireless Sensor Network Based Solution for Water Quality Real-Time Monitoring","authors":"Shaimaa Khaled Nour El-Deen, Hatem M. Elborai, H. Sayour, Ashraf Yahia","doi":"10.21608/ejs.2018.148253","DOIUrl":"https://doi.org/10.21608/ejs.2018.148253","url":null,"abstract":"A low-cost wireless sensor network (WSN) solution for real-time monitoring of water quality is introduced and experimentally demonstrated. The investigated system provides monitoring of ammonia concentration in water which plays a critical role for aquatic organisms due to its toxic and hazardous effects on them. Additionally, the system can sense water pH, water temperature, and ambient temperature. It is capable of periodically sensing different parameters, then sending parameters captured data to a virtual cloud called ThingSpeak that providing monitoring data remotely via internet through mobile phone or PC and analyzing them to send alert to the user when any parameter’s value is out of its safety range. The proposed system can be used in several areas interested in water quality monitoring such as monitoring and contamination detection of water bodies (lakes, rivers, ponds, etc.). Also, it provides water quality monitoring in aquaculture, and aquaponics farms that help in enhancing food productivity and food security. Furthermore, it can be used for drinking water monitoring, irrigation water monitoring, etc.","PeriodicalId":445633,"journal":{"name":"Egyptian Journal of Solids","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128892467","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}
Pub Date : 1992-12-01DOI: 10.21608/ejs.1992.259277
{"title":"Elastic Moduli of a Commercial Soda Lime Silica Glass","authors":"","doi":"10.21608/ejs.1992.259277","DOIUrl":"https://doi.org/10.21608/ejs.1992.259277","url":null,"abstract":"","PeriodicalId":445633,"journal":{"name":"Egyptian Journal of Solids","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1992-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124437067","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}
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