The Bulletin Tabbin Institute for Metallurgical Studies (TIMS)最新文献_第2页

Operating Temperatures Effect on Adsorption Desalination System Powered by Solar Energy 温度对太阳能吸附式海水淡化系统的影响

The Bulletin Tabbin Institute for Metallurgical Studies (TIMS) Pub Date : 2022-10-30 DOI: 10.21608/tims.2022.168553.1006

Ahmed S. Alsaman, Ehab Salah, Ahmed A. Askalany, A. Farid, A. Zohir, M. S. Ahmed, I. El-Sheikh

引用次数: 0

Preparation of Perovskite-type ZnSnO3 nanoparticles and enhancing their behavior as a positive electrode for supercapacitor applications 钙钛矿型ZnSnO3纳米颗粒的制备及其作为超级电容器正极的性能增强

The Bulletin Tabbin Institute for Metallurgical Studies (TIMS) Pub Date : 2022-09-01 DOI: 10.21608/tims.2022.158162.1004

M. Morad, S. Mohamed, R. Aboushahba, M. Rashad

{"title":"Preparation of Perovskite-type ZnSnO3 nanoparticles and enhancing their behavior as a positive electrode for supercapacitor applications","authors":"M. Morad, S. Mohamed, R. Aboushahba, M. Rashad","doi":"10.21608/tims.2022.158162.1004","DOIUrl":"https://doi.org/10.21608/tims.2022.158162.1004","url":null,"abstract":"This work aims to prepare perovskite zinc stannate (ZnSnO 3 ) by the sol-gel method and to study the electrochemical properties. This performance improves by adding different percentages of naturally prepared activated carbon from pomegranate peels. ZnSnO 3 is considered an attractive cathode material for energy storage, which shows a specific capacitance of 115 F g -1 at 1 A g -1 , while the optimum added percentage of the activated carbon is 5%AC+95%ZnSnO 3 , which exhibits 312.5 F g -1 at the same current density, which considered about three times more than that of the ZnSnO 3 , with capacitance retention of 66% after 2000 cycles at the current density of 10 A g -1 . The practical hybrid device shows a speciﬁc capacitance value of 61.6 F g -1 at 1 A g -1 , the specific energy of 22 Wh kg -1, and specific power of 1077 W kg -1 with capacitance retention of 50% of the initial capacitance after 2000 cycles at a current density of 10 A g -1 . As a result, ZnSnO 3 and its composite with cheap and natural materials are considered promising supercapacitor electrodes. The Nyquist plots show a semicircle in the high-frequency region and a near-vertical line at low frequency. The near-vertical line in the low-frequency region indicates the good capacitive of the composite electrode.","PeriodicalId":22390,"journal":{"name":"The Bulletin Tabbin Institute for Metallurgical Studies (TIMS)","volume":"49 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87862955","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: 2

Hierarchically Nanocoral Reefs-like ZnCo2S4 Deposited on Ni Foam as an Electrode Material for High-Performance Battery-type Symmetric Supercapacitor 纳米珊瑚礁状ZnCo2S4沉积在Ni泡沫上作为高性能电池型对称超级电容器的电极材料

The Bulletin Tabbin Institute for Metallurgical Studies (TIMS) Pub Date : 2022-09-01 DOI: 10.21608/tims.2022.147815.1003

M. Elsaid, A. Sayed, A. Ashmawy, Ahmed Hassan, A. Waheed, S. Mohamed

引用次数: 3

Innovative Approaches to Noise Reduction in Metallurgy 冶金降噪的创新方法

The Bulletin Tabbin Institute for Metallurgical Studies (TIMS) Pub Date : 2022-03-27 DOI: 10.21608/tims.2022.120587.1002

I. Butorina, M. Butorina, D. Kuklin, A. Shashurin

引用次数: 1

Tension Gashes Explore The Structural Deformation of Mineralized Shear Zone at Wadi Belih, Northern Eastern Desert, Egypt 张拉裂隙对埃及东部沙漠Wadi Belih矿化剪切带构造变形的探讨

The Bulletin Tabbin Institute for Metallurgical Studies (TIMS) Pub Date : 2022-01-01 DOI: 10.21608/tims.2022.208824

Anton G. Waheeb

引用次数: 0

Geological, Mineralogical and Comparative Study of Biosorption for Uranium and Thorium Using Different Types of Algae at Wadi Dara Area, Northern Eastern Desert, Egypt. 埃及东部沙漠Wadi Dara地区不同类型藻类对铀和钍生物吸附的地质、矿物学及比较研究

The Bulletin Tabbin Institute for Metallurgical Studies (TIMS) Pub Date : 2022-01-01 DOI: 10.21608/tims.2022.208823

N. Gad, Anton G. Waheeb

引用次数: 0

Influence of Welding Variables on Resistance Welding of Dissimilar Metals Quality 焊接变量对异种金属电阻焊质量的影响

The Bulletin Tabbin Institute for Metallurgical Studies (TIMS) Pub Date : 2022-01-01 DOI: 10.21608/tims.2022.208820

S. Khafagy, M. El-Shennawy

{"title":"Influence of Welding Variables on Resistance Welding of Dissimilar Metals Quality","authors":"S. Khafagy, M. El-Shennawy","doi":"10.21608/tims.2022.208820","DOIUrl":"https://doi.org/10.21608/tims.2022.208820","url":null,"abstract":"The investigation explains the influence of important variables of resistance joining process on the characteristics of spot welded joint between low carbon steel LCS with 0.6 mm thickness and stainless steel type 430, FSS with 0.5 mm thickness sheets. Variables investigated are electrode pressure, current, and time of welding. Mechanical and metallurgy l properties are measured through microstructure, shear tensile and hardness determination. It is shown that the effective electrode pressure in this combination of FSS and CS was 2 bar (0.2MPa). It is noted that the current of welding is the effective variable on weld properties. The highest strength of weld is achieved at 3.4 KA. Rising welding time and welding current up to certain limit raises the strength of spot welded joint, after this limit, the strength of welded joint reduces. The microstructure of nugget obtained is martensitic structure. The fracture of spot welded joint is characterized by intergranular fracture in side of ferritic stainless steel sheet and the fracture mode is button pullout. The highest values of micro hardness distribution are observed at locations where carbides precipitated beside nugget martensitic structure.","PeriodicalId":22390,"journal":{"name":"The Bulletin Tabbin Institute for Metallurgical Studies (TIMS)","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88924141","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

The Bulletin Tabbin Institute for Metallurgical Studies (TIMS) Pub Date : 2022-01-01 DOI: 10.21608/tims.2021.102029.1000

Saleh Mohamed El Hady, Samia Abdeldaym

引用次数: 0

Thermodynamics of Sulphur Distribution between Slag and Hot Metal in Blast Furnace. 高炉炉渣与铁水间硫分布的热力学。

The Bulletin Tabbin Institute for Metallurgical Studies (TIMS) Pub Date : 2022-01-01 DOI: 10.21608/tims.2022.208822

S. S. Abd Elmomen

引用次数: 0

Preparation and Characterization of Ti-12Mo/X Al2O3 Nano-Composites for Aerospace Applications Ti-12Mo/X - Al2O3纳米复合材料的制备与表征

The Bulletin Tabbin Institute for Metallurgical Studies (TIMS) Pub Date : 2021-08-01 DOI: 10.21608/tims.2021.191207

A. El-tantawy, H. M. Yehia, Omayma A. Elkady, I. Ghayad

{"title":"Preparation and Characterization of Ti-12Mo/X Al2O3 Nano-Composites for Aerospace Applications","authors":"A. El-tantawy, H. M. Yehia, Omayma A. Elkady, I. Ghayad","doi":"10.21608/tims.2021.191207","DOIUrl":"https://doi.org/10.21608/tims.2021.191207","url":null,"abstract":"Titanium powder is reinforced with 12 wt. % molybdenum powder, and then the mixed Ti-12%Mo matrix composite powder is reinforced with 5, 10, and 15 wt. % nano Al2O3 by the mechanical milling for 24 hr. The mixed nano-composite powders were cold compacted under 600MPa, then sintered at 1450°C for 90 min. The microstructure and chemical composition of the Ti-12Mo/Al2O3 powders, as well as the fabricated composites, were investigated by both SEM and X-ray diffraction. It has been observed form the SEM studies of the sintered samples that the Al2O3 and Mo particles were homogeneously distributed all over the Ti matrix. All the composites were evaluated by measuring their density, hardness, and wear resistance. The results revealed that the addition of 12 wt. % Mo to pure titanium improves its density due to its high density over than that of the Ti and the good adhesion between them, while the addition of Al2O3 decreases the density of the Ti-12Mo nano-composite. Not only the density of the Ti was improved by the addition of Mo, but also the hardness and wear resistance were also increased. Regardless of the decreasing in the density of Ti-12Mo nano-composite by increasing the Al2O3 wt. %, the hardness and wear resistance were improved up to 5 wt. % Al2O3.","PeriodicalId":22390,"journal":{"name":"The Bulletin Tabbin Institute for Metallurgical Studies (TIMS)","volume":"127 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75832153","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