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2篇 您的检索式:作者名="D.K.DWIVEDI"
    题名 作者 年代 出处 被引量
1装甲级Al-Zn-Mg合金搅拌摩擦焊接接头的力学性能(英文)显示文摘研究焊接速度和旋转速度对装甲级铝合金搅拌摩擦焊接接头的形成和力学性能的影响。采用弯曲试验、显微硬度测试、力学性能测试、光学显微镜和扫描电子显微镜对焊接接头进行表征。焊接接头的力学性能(包括显微硬度、抗拉强度和伸长率)随旋转速度增加而增加,随焊接速度减小而增加。焊接速度对热影响区显微硬度的影响比旋转速度更强。焊接速度和旋转速度对搅拌摩擦焊接接头的力学性能有重要影响,且其影响可用回归模型进行预测。C.SHARMA V.UPADHYAY D.K.DWIVEDI P.KUMAR 2017Transactions of Nonferrous Metals Society of China2017,27,3:4
2Fabrication of Graphitic Carbon Nitride-Based Film:An Emerged Highly Efficient Catalyst for Direct C-H Arylation under Solar Light显示文摘Main observation and conclusion Photoredox C-H bond formation can proceed in aerobic environment under solar light and has therefore become attractive.Nowa-days,different types of expensive novel metal complexes and nanomaterials have been urbanized as photocatalysts for direct C-H bond formation in between derivatives of heteroarenes(HAs)and aryl diazonium salts.These photocatalysts,however,still suffer from poor stability,high cost,and decay.Herein,a graphitic carbon nitride-based fluorescein isothiocyanate(g-C_(3)N_(4)-FITC)film pho-tocatalyst has been reported,which shows ecellent light harvesting ability,and band gap suitability to catalyze the metal free direct C-H arylation of HAs under solar light at ambient temperature.Moreover,the g-C_(3)N_(4)-FITC film photocatalyst can be reused four times without significant loss of activity,confirming the excellent photocatalytic stability.The current strategy to constructa g-C_(3)N_(4)-FITC film photocatalyst for direct C-H arylation opens a new path towards replacing metal-based catalysts in fine chemical Sy nthesis.Surabhi Chaubey Rajesh K.Yadav Tae Wu Kim Tara Chand Yadav Abhishek Kumar D.K.Dwivedi B.K.Pandey Atul P.Singh 2021Chinese Journal of Chemistry2021,39,3:2
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