简介:弧与cored电线喷洒被使用在低碳钢底层上扔FeMnCr/Cr3C2涂层,也就是FM1,FM2和FM3。涂层的热吃惊电阻被调查在热吃惊抵抗上估计Cr3C2内容的影响。在热骑车测试下面的涂层的特征被光显微镜学,地排放扫描电子显微镜(FE-SEM)和精力分散光谱(版本)学习,X光检查衍射(XRD)。试验性的结果证明涂层的坚硬增加,结合力量随涂层的Cr3C2内容的增加稍微减少。作为结果,FM2涂层拥有最好的热吃惊抵抗,归因于它比那些的更好热的扩大火柴和FM3涂层的wettability,更少的氧化物率比FM1涂层在涂层从裂缝形成和繁殖制止的。
简介:ThemechanismoftheinterfacialreactionofAl2O3/mediumMnsteelcontainingNbwasstudiedbymeansoftheobservationontheinterfacialreactionphenomenonofAl2O3/mediumMnsteel,andtheanalysesontheinterracialphases.TheresultsshowthatwhenT≥1550℃,theinterfacialreac-tionofAl2O3/mediumMnsteelcontainingNbhappened.InthemediumMnsteelmatrix,NbexistsintheformofNbC.NbCarethenucleatingbaseofCOgasbubbles.
简介:LiMn2O4wassynthesizedrapidlybymicrowaeheating.Theproductphasesofthemicrowavesynthesisandconventionalsolid-statesynthesiswerecomparativelyinvesitigated.Thecapacityofmicrowavesynthesisproductdecreasesrelativelyslow.Thelithiumioncanbeinsertedintoandextractedfromthespinelframeworkstructurefluentlyaftercycling.Butthecapacityoftheconventionalsolid-statesynthesisproductismoreremarkablylowered.Thespinelframeworkstructurewasdestroyedwhichhinderedthelithiumionfrominsertingandextracting.Theinfluentialfactorsoftheprocessparametersarediscussedsuchasheatpreservationtime,pre-heatingat400℃for24handcoupledagent.