{"currentpage":1,"firstResult":0,"maxresult":10,"pagecode":5,"pageindex":{"endPagecode":2,"startPagecode":1},"records":[{"abstractinfo":"采用SPS(放电等离子烧结技术)制备了La( Fe11.2 Co0.7 Si1.1) B0.25合金,并进行了不同时间的热处理.利用XRD及SEM检测了合金的相结构及组织结构,同时对合金的等温磁熵变和绝热温变进行了研究.结果表明,随热处理时间的增加,合金的α - Fe相逐渐减少,主相La(Fe,Si)13相逐渐增加,其等温磁熵变和绝热温变也都逐渐增加.","authors":[{"authorName":"刘翠兰","id":"5d789a0f-1430-4e2a-a19f-c9c289c4ee1a","originalAuthorName":"刘翠兰"},{"authorName":"黄焦宏","id":"e116b5d6-af50-4dad-b4a4-3f2e6626fe27","originalAuthorName":"黄焦宏"},{"authorName":"程娟","id":"d0a4324b-06b9-4e4d-b21a-421fab478ad8","originalAuthorName":"程娟"},{"authorName":"<span style=\"color:red\">闫</span><span style=\"color:red\">宏伟</span>","id":"cd7f712d-34fc-4830-81f4-cd5707fdb1e9","originalAuthorName":"闫宏伟"},{"authorName":"金培育","id":"684b4323-80cd-46fc-bd01-2622cf3d7d0e","originalAuthorName":"金培育"},{"authorName":"邓沅","id":"8e70a6c8-dd1f-42a6-99e4-1eccfed50bb7","originalAuthorName":"邓沅"},{"authorName":"岳明","id":"0fc8d75e-7bb0-44cf-8e6f-79119f9e746b","originalAuthorName":"岳明"},{"authorName":"张久兴","id":"ce30b5db-f9d3-4914-a083-a2ed31643207","originalAuthorName":"张久兴"}],"doi":"10.3969/j.issn.1004-0277.2012.03.006","fpage":"26","id":"592700f6-a97c-4d27-a5a9-16229eaf1a9f","issue":"3","journal":{"abbrevTitle":"XT","coverImgSrc":"journal/img/cover/XT.jpg","id":"65","issnPpub":"1004-0277","publisherId":"XT","title":"稀土"},"keywords":[{"id":"0e6e7702-0fe9-497b-90f9-ef1dae9bb2bf","keyword":"粉末冶金","originalKeyword":"粉末冶金"},{"id":"2c953654-8f91-494b-b063-a311ae14758f","keyword":"SPS烧结","originalKeyword":"SPS烧结"},{"id":"925de5e3-484d-491c-8213-70786d429a8a","keyword":"热处理","originalKeyword":"热处理"},{"id":"08e5a037-3445-4aae-b52c-46eeddfa721a","keyword":"磁热效应","originalKeyword":"磁热效应"}],"language":"zh","publisherId":"xitu201203006","title":"热处理工艺对粉末烧结样品La(Fe11.2Co0.7Si1.1)B0.25磁热效应的影响","volume":"33","year":"2012"},{"abstractinfo":"定量研究了7055铝合金进行多道次热变形及固溶处理中的微观组织演变,采用Gleeble-1500D热模拟试验机对7055铝合金进行多道次热压缩,并对热压缩试样进行固溶处理.以EBSD为主要分析手段,对平均晶粒尺寸、再结晶体积分数、大角度晶界比例等微观组织特征进行定量表征.结果表明:升高变形温度和减少变形道次均有利于增大亚结构比例并且抑制再结晶.当变形温度由375℃升高到425℃时,7055铝合金固溶态显微组织的晶粒平均尺寸由65μm增大到420 μm,再结晶体积分数由51％减小到10％;当变形道次由单道次增加到3道次时,固溶态显微组织的晶粒平均尺寸由56 pm增大到84μm,再结晶体积分数由14％增大到23％.","authors":[{"authorName":"李晨","id":"b4e01603-3222-4478-afd7-02a97c51c6ae","originalAuthorName":"李晨"},{"authorName":"李志辉","id":"26f974c1-7a71-474f-b4e4-2587843dd285","originalAuthorName":"李志辉"},{"authorName":"黄树晖","id":"dc500017-c636-4273-ba60-d55a0d50d27e","originalAuthorName":"黄树晖"},{"authorName":"李锡武","id":"54cf8ec8-f1bf-42d0-a72b-d68cf1d6aad6","originalAuthorName":"李锡武"},{"authorName":"<span style=\"color:red\">闫</span><span style=\"color:red\">宏伟</span>","id":"dd61bc3c-4c37-4348-908e-6ee99e1511a5","originalAuthorName":"闫宏伟"},{"authorName":"刘红伟","id":"af031df4-1f63-47cd-8c35-0d3cfb06d413","originalAuthorName":"刘红伟"},{"authorName":"张永安","id":"7bf32835-b086-46e0-a4d4-562fd6709da1","originalAuthorName":"张永安"},{"authorName":"熊柏青","id":"30a8f3ed-a5c6-407c-9b93-7ddc9243b4b6","originalAuthorName":"熊柏青"}],"doi":"","fpage":"55","id":"7da93583-0ad1-4e68-86ff-700aabd1689d","issue":"12","journal":{"abbrevTitle":"CLRCLXB","coverImgSrc":"journal/img/cover/CLRCLXB.jpg","id":"15","issnPpub":"1009-6264","publisherId":"CLRCLXB","title":"材料热处理学报"},"keywords":[{"id":"b653dbb2-31ce-4962-80dc-3814767720d4","keyword":"7055铝合金","originalKeyword":"7055铝合金"},{"id":"64a3cd0b-e2e0-4fc6-bcd2-8ff89b24ab2b","keyword":"多道次热变形","originalKeyword":"多道次热变形"},{"id":"b022ac3b-6614-4ec2-ab58-f5d74778cbd6","keyword":"固溶处理","originalKeyword":"固溶处理"},{"id":"fe30b7ad-0b5b-4f33-81c0-8164f7cb87d7","keyword":"组织演变","originalKeyword":"组织演变"}],"language":"zh","publisherId":"jsrclxb201512010","title":"7055铝合金多道次热变形及固溶处理中的组织演变","volume":"36","year":"2015"},{"abstractinfo":"将La(Fe11.2Co0.7Si1.1)B0.25铸锭在氩气保护中制成小于1 mm的颗粒,在真空行星球磨机中将其分别球磨1h、1.5h、2h;采用SPS(放电等离子烧结技术)烧结成合金,在1070℃下进行1h热处理；采用XRD及SEM分析了样品的组织结构,并用VSM测量了样品的磁热效应.结果表明,随球磨时间的增加,粉末烧结样品居里温度逐渐降低,而绝热温变和等温磁熵变逐渐增加.","authors":[{"authorName":"刘翠兰","id":"d255535e-8a85-481c-b95c-0fd72add740c","originalAuthorName":"刘翠兰"},{"authorName":"黄焦宏","id":"f1332d33-942f-4015-b191-c8debd91fc27","originalAuthorName":"黄焦宏"},{"authorName":"张涛","id":"c72f39db-e632-44ab-b121-09c4d327f4a1","originalAuthorName":"张涛"},{"authorName":"程娟","id":"d6a31951-2ab3-4e8a-94bc-425a84acce67","originalAuthorName":"程娟"},{"authorName":"金培育","id":"e6685842-71c0-41de-b5bf-d2cc7b549d26","originalAuthorName":"金培育"},{"authorName":"<span style=\"color:red\">闫</span><span style=\"color:red\">宏伟</span>","id":"2342d562-77f3-442e-9713-b27188646dbe","originalAuthorName":"闫宏伟"},{"authorName":"岳明","id":"30ce556d-8b46-4b1c-8348-435de2bf549d","originalAuthorName":"岳明"}],"doi":"","fpage":"86","id":"2b2127e3-ed83-4eaf-9c9b-92767ce33570","issue":"5","journal":{"abbrevTitle":"XT","coverImgSrc":"journal/img/cover/XT.jpg","id":"65","issnPpub":"1004-0277","publisherId":"XT","title":"稀土"},"keywords":[{"id":"853e8286-0354-452c-aa19-a5ab7e406710","keyword":"SPS烧结","originalKeyword":"SPS烧结"},{"id":"824aa9fd-4cc7-4932-b208-b9c4b7ba6fd3","keyword":"球磨时间","originalKeyword":"球磨时间"},{"id":"1cd65e8f-697b-43e4-8385-8f46766626b4","keyword":"磁热效应","originalKeyword":"磁热效应"}],"language":"zh","publisherId":"xitu201305017","title":"SPS烧结样品La(Fe11.2Co0.7Si1.1)B0.25的磁热效应","volume":"34","year":"2013"},{"abstractinfo":"用工业纯原料研究了LaFe11.17-xCo0.78Si1.05Bx(x=0、0.1、0.2、0.3、0.4、0.5)合金在室温附近的磁热效应.B元素作为间隙原子进入晶胞,随着B含量的增加,磁相变点从x=0时的277K升高到x=0.3时的289K.同时,磁熵变和直接测量的绝热温变也随着B含量的增加而增大了,在低磁场具有较大的磁热效应.测量表明合金的热滞和磁滞均很小.","authors":[{"authorName":"黄焦宏","id":"c7164a98-a916-4c28-bf6a-68165eb9d5c4","originalAuthorName":"黄焦宏"},{"authorName":"松林","id":"d1ee8ed7-5560-4228-b9cb-3a05d64ae8dd","originalAuthorName":"松林"},{"authorName":"金培育","id":"5f34527d-a31a-41e2-8b09-98b29a93de0e","originalAuthorName":"金培育"},{"authorName":"王高峰","id":"891eb748-253b-44a1-a297-dfae3f089745","originalAuthorName":"王高峰"},{"authorName":"刘金荣","id":"e4b7c6ba-46a3-44d1-9a13-61b885c1cab0","originalAuthorName":"刘金荣"},{"authorName":"<span style=\"color:red\">闫</span><span style=\"color:red\">宏伟</span>","id":"82f6f52e-56ae-40e9-ac76-0ef8ff03d4f2","originalAuthorName":"闫宏伟"},{"authorName":"张久兴","id":"0c756370-ac78-4ceb-9c36-08be3d0993c8","originalAuthorName":"张久兴"}],"doi":"","fpage":"1888","id":"7dd24a63-6d9a-483c-8b2d-e136ab408d19","issue":"12","journal":{"abbrevTitle":"GNCL","coverImgSrc":"journal/img/cover/GNCL.jpg","id":"33","issnPpub":"1001-9731","publisherId":"GNCL","title":"功能材料"},"keywords":[{"id":"41f65f1c-15c6-4551-9d90-003e50086ce4","keyword":"磁热效应","originalKeyword":"磁热效应"},{"id":"17761c92-aca8-420d-923e-a46926c3a5c6","keyword":"磁相变温度","originalKeyword":"磁相变温度"},{"id":"5611afae-9379-4b16-8d0e-ebdea2d678ed","keyword":"工业纯","originalKeyword":"工业纯"},{"id":"1979de55-fc99-47e5-bc44-f0fdae669545","keyword":"B元素","originalKeyword":"B元素"}],"language":"zh","publisherId":"gncl200612010","title":"LaFe11.17-xCo0.78Si1.05Bx合金磁热效应的研究","volume":"37","year":"2006"},{"abstractinfo":"简单介绍了室温磁热效应测量仪的工作原理及组成,并且测量了Gd样品的磁热效应T-△Tad曲线,该仪器具有操作简单方便、测量费用低廉等优点,它可以作为室温磁制冷材料研究的重要测量手段,同时也可以解决目前磁制冷材料普遍只研究等温磁熵变的不足的问题.","authors":[{"authorName":"金培育","id":"74fdd11a-b8fc-40d1-b3a1-6c85682bad29","originalAuthorName":"金培育"},{"authorName":"黄焦宏","id":"6dca43a2-5bd9-4cae-bd13-8c6edd932fbc","originalAuthorName":"黄焦宏"},{"authorName":"刘翠兰","id":"85a80312-fb2a-4a62-b25a-2d6f2909a16e","originalAuthorName":"刘翠兰"},{"authorName":"郭锋","id":"44bc67a8-eafa-49d4-8df8-8b86e0de5442","originalAuthorName":"郭锋"},{"authorName":"刘金荣","id":"cb279209-5790-4526-a28b-0a83d4c902fc","originalAuthorName":"刘金荣"},{"authorName":"邱巨峰","id":"a4ee6ae6-eb80-4f20-a83d-5f9b3946de1b","originalAuthorName":"邱巨峰"},{"authorName":"<span style=\"color:red\">闫</span><span style=\"color:red\">宏伟</span>","id":"bb959045-ad0d-4c3a-8868-6a1e2006ccf4","originalAuthorName":"闫宏伟"}],"doi":"10.3969/j.issn.1004-0277.2007.06.008","fpage":"35","id":"80ebfc12-472e-4d51-963a-42a3b7ebfe13","issue":"6","journal":{"abbrevTitle":"XT","coverImgSrc":"journal/img/cover/XT.jpg","id":"65","issnPpub":"1004-0277","publisherId":"XT","title":"稀土"},"keywords":[{"id":"1e5df8ce-6f86-4e03-8f26-b026ae71d5b6","keyword":"磁热效应","originalKeyword":"磁热效应"},{"id":"696c1d38-bbe7-4ba1-840c-b05028d48a0d","keyword":"磁热效应直接测量法","originalKeyword":"磁热效应直接测量法"},{"id":"675aebe8-524a-479d-8417-92af5070df28","keyword":"磁热效应直接测量仪","originalKeyword":"磁热效应直接测量仪"},{"id":"7bb560b1-9189-4f34-b453-3a7c291b8899","keyword":"Gd的磁热效应","originalKeyword":"Gd的磁热效应"}],"language":"zh","publisherId":"xitu200706008","title":"室温磁热效应直接测量仪的研制","volume":"28","year":"2007"},{"abstractinfo":"在高温(1170℃)下对LaFe_(11.2)Co_(0.7)Si_(1.1)B_(0.2)合金进行0h,1h,3h,6h,24h和72h热处理,测量了其磁热效应,并利用XRD和SEM进行结构和相组织分析.结果表明合金铸态以α-Fe相为主,随着热处理时间增加,α-Fe相逐渐减少,而NaZn_(13)相(1:13相)增加,时间太长(72h)α-Fe相组织变大;磁热效应T-ΔTad曲线峰值也随着时间增加,在6h时达到最大值,之后下降,而居里点有所升高.","authors":[{"authorName":"金培育","id":"acb1e0b0-e3af-43f3-a871-ac4d430bee17","originalAuthorName":"金培育"},{"authorName":"黄焦宏","id":"7f99811a-f052-4e90-9711-6af1e823df26","originalAuthorName":"黄焦宏"},{"authorName":"刘翠兰","id":"9b24781c-8841-4c9b-8d37-2d2b9be77cc5","originalAuthorName":"刘翠兰"},{"authorName":"<span style=\"color:red\">闫</span><span style=\"color:red\">宏伟</span>","id":"a0ec6530-6ce7-4e53-8c8a-d813cb7e8500","originalAuthorName":"闫宏伟"},{"authorName":"邓沅","id":"0f7d075f-9aa9-4be0-80a5-fa17f97dcd21","originalAuthorName":"邓沅"},{"authorName":"程娟","id":"4da54894-222f-443a-bd22-d98166c29c75","originalAuthorName":"程娟"}],"doi":"10.3969/j.issn.1004-0277.2010.01.013","fpage":"61","id":"0dde77e1-2f7e-4b7a-bc28-587b08d19fd8","issue":"1","journal":{"abbrevTitle":"XT","coverImgSrc":"journal/img/cover/XT.jpg","id":"65","issnPpub":"1004-0277","publisherId":"XT","title":"稀土"},"keywords":[{"id":"a40f0d0c-922e-4836-a30c-7909dd7a1f01","keyword":"LaFe_(11.2)Co_(0.7)Si_(1.1)B_(0.2)合金","originalKeyword":"LaFe_(11.2)Co_(0.7)Si_(1.1)B_(0.2)合金"},{"id":"5230eb82-f62e-4b84-b8c2-a5e68ae2e20b","keyword":"热处理","originalKeyword":"热处理"},{"id":"92a4321e-b474-43d6-b2e6-68f41f60cfbb","keyword":"磁热效应直接测量","originalKeyword":"磁热效应直接测量"},{"id":"4fbaec67-558a-45c1-b709-8e61263878d8","keyword":"磁热效应","originalKeyword":"磁热效应"}],"language":"zh","publisherId":"xitu201001013","title":"热处理对LaFe_(11.2)Co_(0.7)Si_(1.1)B_(0.2)合金磁热效应的影响","volume":"31","year":"2010"},{"abstractinfo":"室温磁制冷技术的进步有助于推进室温磁制冷技术的实用化进程,是目前研究的热点.通过列举近几年室温磁制冷技术的一些新进展,诸如千瓦级磁制冷机的开发,拓宽温跨的技术,磁制冷机新分类法以及快速成型技术制作复杂形状磁制冷工质等,这些技术进步将会拓展室温制冷技术的应用领域.","authors":[{"authorName":"金培育","id":"f5cc2877-e459-4c54-a19a-2c686feab158","originalAuthorName":"金培育"},{"authorName":"黄焦宏","id":"bb766ad2-61be-48ea-b5bb-103d568575e3","originalAuthorName":"黄焦宏"},{"authorName":"杨占峰","id":"f2a1a01d-94e3-42d5-81d6-cd550babb9df","originalAuthorName":"杨占峰"},{"authorName":"<span style=\"color:red\">闫</span><span style=\"color:red\">宏伟</span>","id":"f2799c19-c4fa-4f9c-a9a7-932778638508","originalAuthorName":"闫宏伟"},{"authorName":"刘翠兰","id":"56daf516-405d-4092-b36d-5378170e5572","originalAuthorName":"刘翠兰"},{"authorName":"程娟","id":"47443970-6f8b-45a7-a19c-f818f1bff955","originalAuthorName":"程娟"}],"doi":"","fpage":"101","id":"334eb553-f2c4-4050-9865-64bc272afcb3","issue":"3","journal":{"abbrevTitle":"XT","coverImgSrc":"journal/img/cover/XT.jpg","id":"65","issnPpub":"1004-0277","publisherId":"XT","title":"稀土"},"keywords":[{"id":"da3b46d9-9a7c-4005-b7d8-6bfc613c2dc7","keyword":"室温磁制冷技术","originalKeyword":"室温磁制冷技术"},{"id":"a7e2b886-8b1b-4252-b42d-0adad112fe9c","keyword":"室温磁制冷机","originalKeyword":"室温磁制冷机"},{"id":"4043c78e-fc28-4f66-b4e0-c7e3b99ad149","keyword":"室温磁制冷机分类","originalKeyword":"室温磁制冷机分类"},{"id":"2455a1fa-69ab-4cf0-8041-13d0e4175d9c","keyword":"磁制冷工质","originalKeyword":"磁制冷工质"}],"language":"zh","publisherId":"xitu201403020","title":"磁制冷技术的新进展","volume":"35","year":"2014"},{"abstractinfo":"利用通常的往复式磁制冷原理,采用伺服电机通过滚珠丝杠分别驱动磁场系统和热交换流体的方式,制作实现磁场系统移动速度和换热流体流速连续可调和可控的室温磁制冷机.触摸屏作为操控界面,操作简单方便,参数任意设定,数据自动采集,利用可编程控制器(PLC)及自编的控制程序控制伺服驱动器实现运动控制.这种结构设计方便系统研究往复式室温磁制冷机磁场系统运动速度及热交换流体流速对制冷效果的影响,可作为往复式室温磁制冷机参数的测试平台.","authors":[{"authorName":"金培育","id":"994271c2-13e0-4e3f-bf29-fe625e6c19a4","originalAuthorName":"金培育"},{"authorName":"黄焦宏","id":"1bab1e82-d9b1-48e2-92f7-2df1cae47d1b","originalAuthorName":"黄焦宏"},{"authorName":"<span style=\"color:red\">闫</span><span style=\"color:red\">宏伟</span>","id":"3296277e-ee3f-43dd-acd4-fe76d5b99503","originalAuthorName":"闫宏伟"},{"authorName":"刘翠兰","id":"80c31b51-8d14-4246-93fb-3dea6bf907f3","originalAuthorName":"刘翠兰"},{"authorName":"程娟","id":"263232e7-01d3-44ff-8b3a-1aaee272e13f","originalAuthorName":"程娟"},{"authorName":"邓沅","id":"fa24625e-8dc9-4212-b510-f8ca1ab3d829","originalAuthorName":"邓沅"}],"doi":"","fpage":"90","id":"6928fcb6-9154-403b-8407-46474b8486cf","issue":"6","journal":{"abbrevTitle":"XT","coverImgSrc":"journal/img/cover/XT.jpg","id":"65","issnPpub":"1004-0277","publisherId":"XT","title":"稀土"},"keywords":[{"id":"37e315ca-ab75-4991-b4fd-f3ee51146793","keyword":"室温磁制冷机","originalKeyword":"室温磁制冷机"},{"id":"b5c41fae-2cb1-48be-b599-691df0023aaf","keyword":"往复式磁制冷机","originalKeyword":"往复式磁制冷机"},{"id":"150ce5be-fc15-4337-8159-a273be0d0265","keyword":"磁制冷机","originalKeyword":"磁制冷机"}],"language":"zh","publisherId":"xitu201206020","title":"数控往复式室温磁制冷机的研制","volume":"33","year":"2012"},{"abstractinfo":"从室温磁制冷目的出发,用工业纯原料制备了具有NaZn13型结构的稀土铁基化合物LaFe11.2Co0.7Si1.1Bx(x=0,0.1,0.2,0.25,0.3,0.4,0.5),并对其磁热效应进行了研究.实验结果表明,LaFe11.2Co0.7Si1.1Bx合金在室温区具有大磁热效应,在x＝0.2时,磁熵变|ΔSm|的峰值位于居里温度TC＝270K处,1.5T外磁场下达到7.3J/kg·K,直接测量绝热温变ΔTad达到2.7K;B元素作为置换原子和间隙原子进入NaZn13相,显著提高了合金的磁熵变和居里温度.","authors":[{"authorName":"宫继成","id":"11f933c9-b32d-4807-937e-490f8e0f612f","originalAuthorName":"宫继成"},{"authorName":"黄焦宏","id":"9d307b88-a424-4bcc-baeb-e68d241b93f4","originalAuthorName":"黄焦宏"},{"authorName":"郭锋","id":"71da871b-6a4b-4c21-83d5-2637aa778d8b","originalAuthorName":"郭锋"},{"authorName":"松林","id":"d20e8220-ec03-40b0-b377-5fe913e16251","originalAuthorName":"松林"},{"authorName":"金培育","id":"1925546f-2298-478f-a6bc-70ecd069da01","originalAuthorName":"金培育"},{"authorName":"<span style=\"color:red\">闫</span><span style=\"color:red\">宏伟</span>","id":"23ac7171-9146-4802-b1c5-1b895f7ecbd8","originalAuthorName":"闫宏伟"}],"doi":"10.3969/j.issn.1004-0277.2007.04.008","fpage":"34","id":"75d81025-22b1-4955-a585-ec4d6818a8d1","issue":"4","journal":{"abbrevTitle":"XT","coverImgSrc":"journal/img/cover/XT.jpg","id":"65","issnPpub":"1004-0277","publisherId":"XT","title":"稀土"},"keywords":[{"id":"4a358a14-e650-4016-b643-1a8169c8592f","keyword":"磁热效应","originalKeyword":"磁热效应"},{"id":"9bd873f9-7240-4b00-8078-9971f95cfae7","keyword":"室温磁制冷","originalKeyword":"室温磁制冷"},{"id":"510b5827-263f-4190-8c9f-6f670f39910f","keyword":"工业纯","originalKeyword":"工业纯"},{"id":"19dc5dd6-b9d0-4c2f-a7a6-48d0067e67e9","keyword":"硼","originalKeyword":"硼"}],"language":"zh","publisherId":"xitu200704008","title":"LaFe11.2Co0.7Si1.1Bx合金在室温区的大磁热效应","volume":"28","year":"2007"},{"abstractinfo":"用非自耗电弧炉熔炼制备了La(Fe<,11.05>Co<,0.85>Si<,1.1>)B<,0.25>铸锭,并将该铸锭在氩气保护中球磨制粉,采用SPS(放电等离子烧结技术SparkPlasma Sintering)将该粉制成La(Fe<,11.05>Co<,0.85>Si<,1.1>)B<,0.25>合金,在高温(1070℃)下对其进行20 h热处理;空冷之后用XRD及SEM检测了铸锭热处理样品、SPS烧结样品及SPS热处理后样品的相及组织结构,利用VSM和磁热效应直接测量仪测量了这3种状态下合金的等温磁熵变和绝热温变.结果表明,铸锭合金的基相组织结构中晶粒大小规则较均匀,晶界清晰明显,在0～1.5 T的变化磁场下测得其等温磁熵变达到-5.22 J·(kg·K)<'-1>-,绝热温变也达到2.3 K,而采用SPS技术制得的样品的基相组织结构中没有明显晶界且夹杂较多,其等温磁熵变为-3.90 J·(kg·K)<'-1>,绝热温变为1.9 K(0～1.5 T);经过热处理的SPS样品基相组织结构中,有少量晶界形成,但晶粒大小不规则,测得其等温磁熵变为-3.72 J·(kg·K)<'-1>,绝热温变为1.5 K(0～1.5 T);与铸锭相比较,SPS技术制得的合金样品和经过高温热处理之后的SPS样品的绝热温变值和等温熵磁变值均降低,同比之下这两种样品较铸锭样品的居里点和半峰宽却发生了改变,均显著提高;可以看出采用SPS技术制备的室温磁制冷材料La(Fe<,11.05>Co<,0.85>Si<,1.1>)B<,0.25>能够在较宽的温度范围内制冷,但其磁热效应却相对降低.","authors":[{"authorName":"武清","id":"8a027845-9c69-4be9-a509-959417e2a758","originalAuthorName":"武清"},{"authorName":"黄焦宏","id":"9fb8a92a-d2d0-4f06-bd39-f27cc4de08df","originalAuthorName":"黄焦宏"},{"authorName":"刘翠兰","id":"118294be-7547-41b6-92c5-44e7f6e23743","originalAuthorName":"刘翠兰"},{"authorName":"<span style=\"color:red\">闫</span><span style=\"color:red\">宏伟</span>","id":"be81ff99-9f2a-496c-a918-cd92b30c17d5","originalAuthorName":"闫宏伟"},{"authorName":"邓沅","id":"05ca7c4b-1112-4509-bfea-39c6a10341e1","originalAuthorName":"邓沅"},{"authorName":"程娟","id":"a50c89d9-802c-485c-8287-6c155785fd89","originalAuthorName":"程娟"}],"doi":"10.3969/j.issn.0258-7076.2011.03.012","fpage":"383","id":"9d513016-dde7-4758-bcd9-71c0b2e74a17","issue":"3","journal":{"abbrevTitle":"XYJS","coverImgSrc":"journal/img/cover/XYJS.jpg","id":"67","issnPpub":"0258-7076","publisherId":"XYJS","title":"稀有金属"},"keywords":[{"id":"b7d67bed-3e33-4fe1-aeba-708b49855a9a","keyword":"粉末冶金","originalKeyword":"粉末冶金"},{"id":"418952ac-65b5-459d-9d5e-59f587f39687","keyword":"SPS烧结","originalKeyword":"SPS烧结"},{"id":"86602d6f-5037-4666-abb0-963961965024","keyword":"磁热效应","originalKeyword":"磁热效应"},{"id":"176d28c9-22d8-4c24-99ca-ee27fc1199e6","keyword":"居里温度","originalKeyword":"居里温度"}],"language":"zh","publisherId":"xyjs201103012","title":"粉末冶金法制备La(Fe11.05Co0.85Si1.1)B0.25化合物的磁热效应","volume":"35","year":"2011"}],"totalpage":2,"totalrecord":18}