Soft magnetic alloys are extensively used in various power electronic devices due to their advantageous properties,including high saturation magnetic induction,low coercivity,and high permeability.In certain applicati...Soft magnetic alloys are extensively used in various power electronic devices due to their advantageous properties,including high saturation magnetic induction,low coercivity,and high permeability.In certain applications,complex-shaped components are increasingly required for performance enhancement.Additive manufacturing technique,particularly selective laser melting(SLM),has emerged as an effective method for fabricating such complex-shaped soft magnetic components.SLM,a laserbased additive manufacturing technique,employs high-power-density lasers to melt and fuse metal powders within a powder bed selectively.This approach enables rapid prototyping,precise geometrical control,and the integration of multi-material designs.This review highlights recent advancements in the application of SLM technique for the production of soft magnetic alloys,focusing on Fe-Si,Fe-Ni,Fe-Co,and amorphous alloy systems.Moreover,it explores the implementation of SLM in manufacturing processes and evaluates both the opportunities and challenges associated with SLM-based production of soft magnetic alloys.展开更多
As a potential nuclear fuel,3He element is significant for both the solution of impending human energy crisis and the conser-vation of natural environment.Lunar regolith contains abundant and easily extracted'He.B...As a potential nuclear fuel,3He element is significant for both the solution of impending human energy crisis and the conser-vation of natural environment.Lunar regolith contains abundant and easily extracted'He.Based on the analyses of the impactfactors of'He abundance,here we have compared a few key assessment parameters and approaches used in lhunar regolith 3Hereserve estimnation and some representative estimation results,and discussed the issues concemed in'He abundance variationand 3He reserve estimation.Our studies suggest that in a range of at least meters deep,3He abundance in lunar regolith ishomogeneously distributed and generally does not depend on the depth;lunar regolith has long been in a saturation state of2Hetrapped by minerals through chemical bonds,and the temperature fluctuation on the lunar surface exerts little influence on thelattice'He abundance.In terms of above conclusions and the newest lunar regolith depth data from the microwave brightnesstemperature retrieval of the“ChanoR_1"Tamar Mierowave Sounder.a new 3He reserve estimation has been presented.展开更多
基金National Natural Science Foundation of China(52171191,52371198)Project of Constructing National Independent Innovation Demonstration Zones(XM2024XTGXQ05)。
文摘Soft magnetic alloys are extensively used in various power electronic devices due to their advantageous properties,including high saturation magnetic induction,low coercivity,and high permeability.In certain applications,complex-shaped components are increasingly required for performance enhancement.Additive manufacturing technique,particularly selective laser melting(SLM),has emerged as an effective method for fabricating such complex-shaped soft magnetic components.SLM,a laserbased additive manufacturing technique,employs high-power-density lasers to melt and fuse metal powders within a powder bed selectively.This approach enables rapid prototyping,precise geometrical control,and the integration of multi-material designs.This review highlights recent advancements in the application of SLM technique for the production of soft magnetic alloys,focusing on Fe-Si,Fe-Ni,Fe-Co,and amorphous alloy systems.Moreover,it explores the implementation of SLM in manufacturing processes and evaluates both the opportunities and challenges associated with SLM-based production of soft magnetic alloys.
基金supported by National Natural Science Foundation of China(Grant No.40601066)Lunar Microwave Sounder Program of"ChangE-1"Project
文摘As a potential nuclear fuel,3He element is significant for both the solution of impending human energy crisis and the conser-vation of natural environment.Lunar regolith contains abundant and easily extracted'He.Based on the analyses of the impactfactors of'He abundance,here we have compared a few key assessment parameters and approaches used in lhunar regolith 3Hereserve estimnation and some representative estimation results,and discussed the issues concemed in'He abundance variationand 3He reserve estimation.Our studies suggest that in a range of at least meters deep,3He abundance in lunar regolith ishomogeneously distributed and generally does not depend on the depth;lunar regolith has long been in a saturation state of2Hetrapped by minerals through chemical bonds,and the temperature fluctuation on the lunar surface exerts little influence on thelattice'He abundance.In terms of above conclusions and the newest lunar regolith depth data from the microwave brightnesstemperature retrieval of the“ChanoR_1"Tamar Mierowave Sounder.a new 3He reserve estimation has been presented.
