简介：8月17～21日，第23届国际稀土永磁会议在美国马里兰安纳波利斯召开，大会为北京大学物理学院杨应昌院士以及来自英国、日本和美国的共4位科学家颁发了杰出成就奖，表彰他们长期以来在探索、开发新型稀土永磁材料方面所作出的卓越贡献。

简介：为满足用户对轴承钢线材碳化物均匀性的较高要求，线带厂高线生产线通过挑选坯料，控制加热温度、加热时间和出钢温度，控制轧制温度和轧制形变量以及盘条在风冷线上的冷却速率，使得碳化物液析控制在0．5级以内，碳化物网状和带状控制在1．5级以内，提升了产品的内在质量。

简介：La15Fe77B8hydrogenstoragealloyswerepreparedusingavacuuminduction-quenchingfurnace.TheresultsofX-raydiffraction(XRD)andscanningelectronmicroscopy(SEM)suggestedthatLa15–xSmxFe2Ni76Mn5B2(x=0,2,4,6)alloyshadmultiphasestructureincludingthemainLaNi5phase,La3Ni13B2phaseand(Fe,Ni)phase.WiththeincreasingsubstitutionofSmforLa,themainphasestructureofalloysdidnotchange,whiletheunitcellvolumesdecreased,thecyclestabilitywasimprovedandthemaximumdischargecapacitydecreased,butthelowtemperaturemaximumdischargecapacityofthesamesubstitutionalloywasgraduallyapproachingthemaximumdischargecapacityatroomtemperature,whichshowedthatLa15Fe77B8hydrogenstoragealloysofthepartialsubstitutionofSmforLahadbetterlow-temperaturedischargeability(LTD).Forthesamesubstitutionalloys,self-dischargecharacteristicsandcyclestabilityatlowtemperaturewerebetterthanthatatroomtemperature.Furthermore,thehigh-ratedischargeability(HRD)andtheexchangecurrentdensityI0firstincreasedandthendecreasedwiththeincreasingofSmcontent,whereasthehydrogendiffusioncoefficientDinalloybulkdecreasedgradually,whichindicatedthatappropriatesubstitutionofSmforLaimprovedtheelectrochemicalkineticspropertiesofthealloys.TheHRDwasmainlydominatedbythecharge-transferrateonthealloysurface.

简介：15%Ag-addedcubicperovskitesSr0.9La0.1TiO3andRuddlesden-Popper(RP)phasesSr2.7La0.3Ti2O7werefabricatedviahydrothermalsynthesis,coldpressingandhigh-temperaturesintering.Thestructureandthermoelectricpropertieswerealsoinvestigatedforallsamples.TheresultsindicatedthatAgprecipitatedasasecondphase.AgadditionmadeelectricalconductivityandabsoluteSeebeckcoefficientenhanced,asaresult,theZTvalueswereenhancedbothfortwoseries.Comparedwithcubicperovskite,RPphasewassubjectedtosmallerimpactbyAgaddition.ThereasonsforenhancingZTvalueandthedifferentimpactfortwoseriesbyAgadditionwerealsodiscussed.

简介：超级奥氏体不锈钢及镍基合金材料是高端装备制造业的关键材料。为推进这些材料的研发生产与推广应用，中国特钢企业协会不锈钢分会特组织召开第一届超级奥氏体不锈钢及镍基合金国际研讨会。会议主要介绍国内外石油石化、核电火电、清洁能源、船舶制造与海洋工程，以及环保等领域用超级奥氏体不锈钢和镍基合金的研发与生产、加工制造、材料选择和使用评价等情况，为国内外参会者提供交流学习的平台，吸收借鉴先进生产技术与成功应用经验，推动超级奥氏体不锈钢和镍基合金的发展。