{"title":"Damping characteristics of pure aluminum: A comparison of microwave and conventional sintering","authors":"Dorathi Kare, Shoba Chintada, Siva Prasad Dora, Prafulla Kumar Swain","doi":"10.1016/S0026-0657(21)00299-X","DOIUrl":null,"url":null,"abstract":"<div><p><span><span>The current research focuses on how heating mode in powder metallurgy affects the damping properties of pure </span>aluminum. The aluminum powder was compacted in a hydraulic press measuring 40 x 12 x 1.5mm3 and heated in a muffle furnace (conventional) and a microwave sintering furnace. The damping measurements were conducted on the samples using a dynamic mechanical analyzer under dual cantilever mode at various vibrating frequencies of 0.1, 1 and 10Hz from room temperature (RT) to 150°C at constant strain. Results demonstrated that the microwave sintered samples exhibit high </span>storage modulus and high damping capacities compared to conventional sintered samples. The mechanisms that support this behavior are investigated and presented.</p></div>","PeriodicalId":18669,"journal":{"name":"Metal Powder Report","volume":"76 6","pages":"Pages 22-25"},"PeriodicalIF":0.0000,"publicationDate":"2021-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Metal Powder Report","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S002606572100299X","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"Engineering","Score":null,"Total":0}
引用次数: 0
Abstract
The current research focuses on how heating mode in powder metallurgy affects the damping properties of pure aluminum. The aluminum powder was compacted in a hydraulic press measuring 40 x 12 x 1.5mm3 and heated in a muffle furnace (conventional) and a microwave sintering furnace. The damping measurements were conducted on the samples using a dynamic mechanical analyzer under dual cantilever mode at various vibrating frequencies of 0.1, 1 and 10Hz from room temperature (RT) to 150°C at constant strain. Results demonstrated that the microwave sintered samples exhibit high storage modulus and high damping capacities compared to conventional sintered samples. The mechanisms that support this behavior are investigated and presented.
期刊介绍：
Metal Powder Report covers the powder metallurgy industry worldwide. Each issue carries news and features on technical trends in the manufacture, research and use of metal powders. Metal Powder Report is recognised by parts manufacturers and end-users worldwide for authoritative and high quality reporting and analysis of the international powder metallurgy industry. Included in your Metal Powder Report subscription will be the PM World Directory. This extensive directory will provide you with a valuable comprehensive guide to suppliers of materials, equipment and services to the PM industry.
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