《材料科学--mse-21-910417》由会员分享，可在线阅读，更多相关《材料科学--mse-21-910417（111页珍藏版）》请在金锄头文库上搜索。
1、第二十一章磁伯(magneticpr0pertieS磁偶桠(magneticdipole)磁场向量磁矩来源guttiotbbtefyn反磁夷顺磁(dia-,para-)钻磁、反铁磁与亚铁磁(ferro-,antiferro-,ferri-)温度对磁佐影和磁区(domain)不磁湘(hysteresis)软磁材料(soft-)硬磁树dladaoulLcom高能硬磁材料磁偷存、超导性Magnesla:mineralingredientofthephilosophersstone,fromMedievalLatin,fromGreek,akindofore,ftomMagnesia:anancieu
2、tcityofAsiaMinor磁:慧石十八世类:十二世约:中国人航海Coulomb研究磁石作1820:Oerstedk1777-1851),电荸使磁场磁场电流俑扯磁鲁Im吴塌手(distortion)是电场相对论性质副产品磁偶极(magneticdipole)磁场、想像tool)屋目磁力维(fieldline)的惶(imaginaryI囹(currentloop)、磁棒(ban)春tatf2311MagastisfeBnesofforseaogmdauneatjoopand8barnugneLGdyRnk12ThemagnetiemoplentssdesieaatsdyanarrowI一E磁
3、偶桠与电偶杏相似想像鸟一包吾南北极小磁森冉箭蟹代表U铋腾揣名化磁场对磁偶极产生一力矩:倩向Biatmt1河0Themasnetiefeld历agemerniedDy9cylindricatcoll芒dependeqtonlheeurrentAthehumiheroursNandthesoillenglh一aecording10Equuntion311.ThemagaetichndefsityBinthepresedceoflVacottm英eqatlloa技wberapa芸ihePermeahillyfaVacutm.51077Hm(6)Themitznetieiluxdensitywithia8solidImaterialedual4一孙where北许Ihepermeabfliyofthesolidmalerial(Adaptedfom.Gay,EiseniahafNneriafScieneeMeGiriw-HHBookCompany,NewYodke1976J)磁场向量磁场强度(magneticfieldstrength)E:外加磁场圈)集生-|如磁场一昌和形粮卷(螺形稔I设稀圈含有N密接圈、长度尸L电流IN
