{"currentpage":1,"firstResult":0,"maxresult":10,"pagecode":5,"pageindex":{"endPagecode":5,"startPagecode":1},"records":[{"abstractinfo":"The electronic structure of the <span style=\"color:red\">13</span>-atom Rh cluster is studied with the structure model optimized by Estiu and Zerner using the discrete variational local-spin density-functional method. The magnetic moment per atom of the cluster is calculated to be 0.54 mu(B), in good agreement with experimental measurements (0.48 +/- 0.13)mu(B). It confirms our previous assumption that the structural distortion of the Rh-<span style=\"color:red\">13</span> cluster from a perfect icosahedron to its ground state geometry decreases its magnetic moment and makes the theoretical calculation close to the experimental measurement.","authors":[],"categoryName":"|","doi":"","fpage":"549","id":"becc0a85-6f7d-4356-83ba-53f8a06130df","issue":"2","journal":{"abbrevTitle":"PSSBR","id":"9a2dab89-3f59-4f48-9acd-a4b64281fddf","issnPpub":"0370-1972","publisherId":"PSSBR","title":"Physica Status Solidi B-Basic Research"},"keywords":[{"id":"c55123aa-e6e7-4a60-82a5-8a10c53f3fd9","keyword":"molecules","originalKeyword":"molecules"}],"language":"en","publisherId":"0370-1972_1996_2_5","title":"Magnetism of the Rh-<span style=\"color:red\">13</span> cluster","volume":"195","year":"1996"},{"abstractinfo":"Alloys of PrCo<span style=\"color:red\">13</span>-xSix (1.5 less than or equal to x less than or equal to 4.0) have been prepared by are melting and subsequent annealing. X-ray powder diffraction proved that the alloys crystallized in the cubic NaZn<span style=\"color:red\">13</span>-type structure for x=1.5, and in the tetragonal NaZn<span style=\"color:red\">13</span>-derivative one for x greater than or equal to 2.0. Their Curie temperatures are almost independent of the Si content. Their magnetization curves exhibit a binary-step characteristic. The ac susceptibility curve indicates that there exists a magnetic transition below room temperature. The anomalous binary-step magnetization curves and the ac susceptibility curves versus temperature suggest a metamagnetic transition. (C) 1994 American Institute of Physics.","authors":[],"categoryName":"|","doi":"","fpage":"7887","id":"2a3d5214-e559-450b-a77c-c98dbe2d6b67","issue":"10","journal":{"abbrevTitle":"JOAP","id":"7dcf8a89-0513-40ee-be2d-759941dcef7e","issnPpub":"0021-8979","publisherId":"JOAP","title":"Journal of Applied Physics"},"keywords":[],"language":"en","publisherId":"0021-8979_1996_10_5","title":"Metamagnetic transition in PrCo<span style=\"color:red\">13</span>-xSix","volume":"79","year":"1996"},{"abstractinfo":"NaZn<span style=\"color:red\">13</span>型晶体结构的La(Fe,Si)<span style=\"color:red\">13</span>化合物由于具有原料价格低廉、磁热效应巨大、环保等优点而备受关注,已经成为国际上公认的最有潜力的室温磁制冷材料之一.本文系统介绍了La(Fe,Si)<span style=\"color:red\">13</span>化合物的结构和磁热性能,阐述了吸氢、吸氮,稀土元素、Co、B、C、Ca等替代元素对该系列化合物结构和磁热性能的影响,评述了最新的La(Fe,Si)<span style=\"color:red\">13</span>化合物的制备和加工工艺,最后展望了La(Fe,Si)<span style=\"color:red\">13</span>化合物作为磁制冷材料的发展趋势.","authors":[{"authorName":"王利刚","id":"70b86daf-449f-4808-bd33-61b50e0bb750","originalAuthorName":"王利刚"},{"authorName":"特古斯","id":"02a796d9-500d-44a4-841e-5ed3dfa97a54","originalAuthorName":"特古斯"}],"doi":"","fpage":"93","id":"b2d0ad00-c1b0-42d5-bd27-c661c9c8cbaa","issue":"1","journal":{"abbrevTitle":"XT","coverImgSrc":"journal/img/cover/XT.jpg","id":"65","issnPpub":"1004-0277","publisherId":"XT","title":"稀土"},"keywords":[{"id":"1b4299ec-de3a-4094-b7e7-040d46bbc326","keyword":"磁制冷","originalKeyword":"磁制冷"},{"id":"7821c06b-9c1f-408a-be59-80a27940509a","keyword":"磁热效应","originalKeyword":"磁热效应"},{"id":"1a7246d8-7357-4c9f-b47f-5c0c5ce8ee7a","keyword":"La(Fe,Si)<span style=\"color:red\">13</span>化合物","originalKeyword":"La(Fe,Si)13化合物"},{"id":"34012f47-552b-447d-bb0e-9606f8d545ed","keyword":"磁熵变","originalKeyword":"磁熵变"}],"language":"zh","publisherId":"xitu201501018","title":"NaZn<span style=\"color:red\">13</span>型La(Fe,Si)<span style=\"color:red\">13</span>磁制冷材料的研究进展","volume":"36","year":"2015"},{"abstractinfo":"目的：研究获得高质量H<span style=\"color:red\">13</span>激光涂层的工艺。方法以H<span style=\"color:red\">13</span>合金粉末为熔覆材料,在H<span style=\"color:red\">13</span>钢退火基体表面制备H<span style=\"color:red\">13</span>合金涂层,采用均匀设计试验,利用金相法检测涂层的几何形貌参数,得到涂层宽度回归模型,并验证所建立模型的准确性。利用光学显微镜和扫描电镜分析涂层的显微组织形貌,对涂层成分进行分析,通过显微硬度计测试涂层截面的显微硬度分布。对涂层气孔、裂纹和成分偏析进行分析。结果扫描速度22 mm/s ,激光功率1300 W,送粉速率21 g/min时,H<span style=\"color:red\">13</span>合金涂层与基体呈良好的冶金结合,涂层内组织均匀致密,无裂纹缺陷,截面显微硬度约600~699HV,是H<span style=\"color:red\">13</span>基体硬度的2.4~3倍。扫描速度14 mm/s ,激光功率1400 W,送粉速率42 g/min 时,涂层的截面显微硬度约为669~698HV,是基体的2.85~3倍。结论在两种工艺条件下,均能获得质量较优的H<span style=\"color:red\">13</span>合金涂层。","authors":[{"authorName":"叶四友","id":"be3c6d15-1ca5-45f5-95fb-670f15348f3b","originalAuthorName":"叶四友"},{"authorName":"刘建永","id":"f20f0bc8-4fee-4edd-be00-dc532b773b8d","originalAuthorName":"刘建永"},{"authorName":"杨伟","id":"9fa71276-6675-45f8-a96c-b5fa140e6444","originalAuthorName":"杨伟"}],"doi":"10.16490/j.cnki.issn.1001-3660.2015.08.015","fpage":"81","id":"af364776-b39e-4cd5-a1c2-14b4dd28a7cf","issue":"8","journal":{"abbrevTitle":"BMJS","coverImgSrc":"journal/img/cover/BMJS.jpg","id":"3","issnPpub":"1001-3660","publisherId":"BMJS","title":"表面技术   "},"keywords":[{"id":"a4f449b7-9c9f-4042-a5ba-3866b9b9db55","keyword":"激光熔覆","originalKeyword":"激光熔覆"},{"id":"49e6e056-6010-4025-a965-bdbedb8acd46","keyword":"H<span style=\"color:red\">13</span>合金涂层","originalKeyword":"H13合金涂层"},{"id":"ee53b3a7-8ea7-4b1d-a9da-ec7f4cae5992","keyword":"几何形貌","originalKeyword":"几何形貌"},{"id":"a6ccebaa-62fd-4c47-aabd-27fdd6e5b055","keyword":"均匀设计","originalKeyword":"均匀设计"},{"id":"13737f6c-5840-45a4-bde5-27cb2233cdf6","keyword":"回归模型","originalKeyword":"回归模型"},{"id":"48546db1-8b72-491f-b1a5-2f28a7c46a40","keyword":"显微硬度","originalKeyword":"显微硬度"}],"language":"zh","publisherId":"bmjs201508015","title":"H<span style=\"color:red\">13</span>钢表面激光熔覆H<span style=\"color:red\">13</span>合金涂层质量研究","volume":"","year":"2015"},{"abstractinfo":"The crystal structure and magnetic properties of LaCo<span style=\"color:red\">13</span>-xAlx compounds have been investigated by X-ray powder diffraction and magnetization measurement. X-ray powder diffraction shows that the compounds crystallize in cubic NaZn<span style=\"color:red\">13</span>-type structure with lattice parameter a=11.345(2) to 11.473(4) Angstrom in the range of x less than or equal to 2.7, and in the tetragonal Ce2Ni17Si9 structure at x=3. Magnetization measurements reveal that both cubic and tetragonal LaCo<span style=\"color:red\">13</span>-xAlx are ferromagnetic with Curie temperature higher than 840 K, and the magnetic moment per Co atom in LaCo<span style=\"color:red\">13</span>-xAlx compounds decreases with Al content.","authors":[],"categoryName":"|","doi":"","fpage":"297","id":"433326c5-e2bc-40d0-b235-60c30c188d15","issue":"2","journal":{"abbrevTitle":"PSSAR","id":"5722fcba-10b3-47a1-bdd3-0cf4accdb887","issnPpub":"0031-8965","publisherId":"PSSAR","title":"Physica Status Solidi a-Applied Research"},"keywords":[{"id":"e4e14ae3-12ff-412e-a625-d0a52fa37836","keyword":"intermetallic compounds;rare-earth;transition","originalKeyword":"intermetallic compounds;rare-earth;transition"}],"language":"en","publisherId":"0031-8965_1997_2_1","title":"Crystal structure and magnetic properties of LaCo<span style=\"color:red\">13</span>-xAlx compounds","volume":"159","year":"1997"},{"abstractinfo":"研究了Ti-<span style=\"color:red\">13Nb-13</span>Zr合金在β相区和(α+β)两相区固溶和时效处理后其合金力学性能及组织变化规律. 分析发现在β相区固溶的合金, 水冷时生成针状马氏体α′, 空冷时生成亚稳定β相和少量αp, 在(α+β)两相区固溶生成β转和αP. 在β相区和(α+β)两相区固溶试样经时效后, 晶粒内部主要析出点状和棒状αS. 在750 ℃/1 h固溶(WQ)和低温510 ℃/6 h时效的合金抗拉强度高、塑性较高、弹性模量低, 可以满足人体植入要求. ","authors":[{"authorName":"付艳艳","id":"bfbea724-1cbb-4520-bc05-f642e9add54c","originalAuthorName":"付艳艳"},{"authorName":"周廉","id":"801a56fc-ddb4-472f-8f8f-3032bae62d93","originalAuthorName":"周廉"},{"authorName":"于振涛","id":"eaaf5664-9454-4529-8e6a-31a0faa3ad90","originalAuthorName":"于振涛"},{"authorName":"王克光","id":"d401775f-8ac3-420f-9d08-43406a369087","originalAuthorName":"王克光"}],"doi":"10.3969/j.issn.0258-7076.2004.01.010","fpage":"39","id":"dc2a5cf9-00f5-4acf-b5b7-23173c30b537","issue":"1","journal":{"abbrevTitle":"XYJS","coverImgSrc":"journal/img/cover/XYJS.jpg","id":"67","issnPpub":"0258-7076","publisherId":"XYJS","title":"稀有金属"},"keywords":[{"id":"a56eb365-8daa-4541-ad3d-89b92e6e4bcc","keyword":"Ti-<span style=\"color:red\">13Nb-13</span>Zr","originalKeyword":"Ti-13Nb-13Zr"},{"id":"4e83da60-c660-4d05-b7f6-846dbd1a8747","keyword":"力学性能","originalKeyword":"力学性能"},{"id":"c3bbf8ef-d431-4e8d-af08-8b6b78dd1acb","keyword":"显微组织","originalKeyword":"显微组织"}],"language":"zh","publisherId":"xyjs200401010","title":"Ti-<span style=\"color:red\">13Nb-13</span>Zr合金力学性能和显微组织的研究","volume":"28","year":"2004"},{"abstractinfo":"目的：提高医用钛合金的耐磨损性能。方法应用等离子渗氮技术在Ti<span style=\"color:red\">13</span> Nb<span style=\"color:red\">13</span> Zr基材上制备改性层,并对改性层组织、成分及硬度进行测试。利用往复磨损试验机研究改性层在干摩擦条件下的摩擦磨损性能,并与未处理的基材进行对比。结果 Ti<span style=\"color:red\">13</span> Nb<span style=\"color:red\">13</span> Zr合金表面经渗氮后形成致密均匀的改性层,硬度高达1110 HV0.025,改性层的磨损体积约为基材的1/23。结论等离子渗氮技术有效地改善了Ti<span style=\"color:red\">13</span> Nb<span style=\"color:red\">13</span> Zr合金的摩擦磨损性能。","authors":[{"authorName":"田伟红","id":"809904d9-99ed-4dff-9072-7d9ebbb9dbbe","originalAuthorName":"田伟红"},{"authorName":"郭杨阳","id":"2aa11eca-7066-422a-9609-94a025fd94c3","originalAuthorName":"郭杨阳"},{"authorName":"李轩鹏","id":"423fe4a8-95e2-4ae3-8e47-e616af61dae4","originalAuthorName":"李轩鹏"},{"authorName":"郭亚鑫","id":"526f0521-941e-4a90-a70f-c43e017d4ba1","originalAuthorName":"郭亚鑫"},{"authorName":"范爱兰","id":"d889b604-88b4-4e85-bec2-c384ec1d9386","originalAuthorName":"范爱兰"},{"authorName":"刘小萍","id":"45391b23-19ce-4340-9111-a749eb2255d3","originalAuthorName":"刘小萍"},{"authorName":"唐宾","id":"75c69f87-0876-4c36-90f9-15d4e0e5caa8","originalAuthorName":"唐宾"}],"doi":"10.16490/j.cnki.issn.1001-3660.2015.05.011","fpage":"58","id":"736c2182-a5cc-4d6f-9859-28d974841961","issue":"5","journal":{"abbrevTitle":"BMJS","coverImgSrc":"journal/img/cover/BMJS.jpg","id":"3","issnPpub":"1001-3660","publisherId":"BMJS","title":"表面技术   "},"keywords":[{"id":"b25e4178-0f7f-4bf2-9319-b07e9719d0c3","keyword":"Ti<span style=\"color:red\">13</span> Nb<span style=\"color:red\">13</span> Zr","originalKeyword":"Ti13 Nb13 Zr"},{"id":"1c928aec-1e47-48a5-a06d-09abe37107fe","keyword":"等离子渗氮","originalKeyword":"等离子渗氮"},{"id":"c2c8fa50-2a65-4139-a5ac-b59dcba9ec9f","keyword":"硬度","originalKeyword":"硬度"},{"id":"e98f5b51-1b6e-4a4f-a172-dff9591116cd","keyword":"摩擦性能","originalKeyword":"摩擦性能"}],"language":"zh","publisherId":"bmjs201505011","title":"Ti<span style=\"color:red\">13</span> Nb<span style=\"color:red\">13</span> Zr合金离子氮化层的摩擦磨损性能研究","volume":"","year":"2015"},{"abstractinfo":"以3,5-二甲氧基苯甲酸(1)为起始原料, 经过甲醇酯化、氢化铝锂还原、四溴化碳溴代和Wittig-Horner反应,高产率的合成了Wittig-Horner试剂(5). 化合物5与对羟基苯甲醛(6)的羟基保护产物(7)偶联得到化合物(8),后者经去甲氧基亚甲基保护和仿生氧化偶联反应成功地全合成了(E)-脱氢二聚白藜芦醇-11,11′,<span style=\"color:red\">13,13</span>′-四甲醚(10). 通过~1H NMR、~(<span style=\"color:red\">13</span>)C NMR、IR、HRMS等测试技术确定化合物10为二聚芪类化合物(E)-脱氢二聚白藜芦醇-11,11′,<span style=\"color:red\">13,13</span>′-四甲醚,总收率48.93%.","authors":[{"authorName":"张成路","id":"1457c85e-cfec-471f-bb1d-9701ca8348eb","originalAuthorName":"张成路"},{"authorName":"申洪江","id":"195e404a-a21e-4a4e-aca7-6d7d6cdf3619","originalAuthorName":"申洪江"},{"authorName":"邹立伟","id":"aa2acf7b-d38e-48ec-8a20-ded6b24a13f0","originalAuthorName":"邹立伟"},{"authorName":"许永廷","id":"bfd506cc-dc79-4ef7-9298-c4a8fd5ed112","originalAuthorName":"许永廷"},{"authorName":"广东","id":"1ef4435b-0574-431c-a9f8-be2f111a95f5","originalAuthorName":"广东"},{"authorName":"李元东","id":"ebad56d4-3908-4b33-b4fe-6a0db6004ed2","originalAuthorName":"李元东"},{"authorName":"王杨","id":"ff3d3167-d762-417e-82af-e4f83f6ce423","originalAuthorName":"王杨"},{"authorName":"王利东","id":"163d7135-1622-4a67-ae96-ce6726fd8a79","originalAuthorName":"王利东"}],"doi":"10.3969/j.issn.1000-0518.2009.10.011","fpage":"1180","id":"35b24c18-923a-4f40-bdf1-755bae2312fc","issue":"10","journal":{"abbrevTitle":"YYHX","coverImgSrc":"journal/img/cover/YYHX.jpg","id":"73","issnPpub":"1000-0518","publisherId":"YYHX","title":"应用化学"},"keywords":[{"id":"09b1907b-cda2-4eed-af74-88f4d94efbd8","keyword":"白藜芦醇","originalKeyword":"白藜芦醇"},{"id":"5a311afb-50e8-4239-9dca-74b020a78671","keyword":"氧化偶联","originalKeyword":"氧化偶联"},{"id":"bbc4b7c8-8d89-43fa-b1cc-00ae4d99c063","keyword":"二聚芪类化合物","originalKeyword":"二聚芪类化合物"},{"id":"245c7154-99cb-4f65-83e6-6e5e9482eb89","keyword":"(E)-脱氢二聚白藜芦醇四甲醚","originalKeyword":"(E)-脱氢二聚白藜芦醇四甲醚"}],"language":"zh","publisherId":"yyhx200910011","title":"(E)-脱氢二聚白藜芦醇-11,11′,<span style=\"color:red\">13,13</span>′-四甲醚的全合成","volume":"26","year":"2009"},{"abstractinfo":"针对H<span style=\"color:red\">13</span>钢中普遍存在的带状偏析现象，利用金相显微镜及SEM研究了H<span style=\"color:red\">13</span>钢不同状态带状偏析的演化规律。研究结果表明，H<span style=\"color:red\">13</span>钢退火态的带状偏析由枝晶偏析的热变形引起，表现为碳化物的球化程度、颗粒大小及分布的不均匀；退火组织的不均匀性直接影响H<span style=\"color:red\">13</span>淬火、回火态的组织均匀性，且退火组织中金属元素分布的不均匀及偏析带中存在的一次液析共晶碳化物一直保留到钢的回火状态，影响了H<span style=\"color:red\">13</span>钢的等向性；良好的退火组织是制造高品质H<span style=\"color:red\">13</span>热作模具钢的关键因素。","authors":[{"authorName":"周健，马党参，刘宝石，康爱军，李向阳","id":"6b96382e-7047-4ebd-ba13-f66c04f234ec","originalAuthorName":"周健，马党参，刘宝石，康爱军，李向阳"}],"categoryName":"|","doi":"","fpage":"47","id":"7a00f237-cc33-4e3c-bb8f-2e02d4aae52f","issue":"4","journal":{"abbrevTitle":"GTYJXB","coverImgSrc":"journal/img/cover/GTYJXB.jpg","id":"30","issnPpub":"1001-0963","publisherId":"GTYJXB","title":"钢铁研究学报"},"keywords":[{"id":"4bcd98c2-e610-40b6-9880-ce7172a514c0","keyword":"H<span style=\"color:red\">13</span>钢 ","originalKeyword":"H13钢 "},{"id":"9d4f63de-0b70-4d70-9eda-18c8ea950491","keyword":" band segregation ","originalKeyword":" band segregation "},{"id":"0f46bfdd-98df-403c-b764-e4a5aad08c6d","keyword":" anneal microstructure ","originalKeyword":" anneal microstructure "},{"id":"d10ced4e-2760-4401-beb5-4becca402773","keyword":" carbide segregation ","originalKeyword":" carbide segregation "},{"id":"b5a27fac-02ee-4b50-b5b7-9f86ba5d07bd","keyword":" segregation","originalKeyword":" segregation"}],"language":"zh","publisherId":"1001-0963_2012_4_1","title":"H<span style=\"color:red\">13</span>钢带状偏析演化规律研究","volume":"24","year":"2012"},{"abstractinfo":"针对H<span style=\"color:red\">13</span>钢中普遍存在的带状偏析现象,利用金相显微镜及SEM研究了H<span style=\"color:red\">13</span>钢不同状态带状偏析的演化规律。研究结果表明,H<span style=\"color:red\">13</span>钢退火态的带状偏析由枝晶偏析的热变形引起,表现为碳化物的球化程度、颗粒大小及分布的不均匀;退火组织的不均匀性直接影响H<span style=\"color:red\">13</span>淬火、回火态的组织均匀性,且退火组织中金属元素分布的不均匀及偏析带中存在的一次液析共晶碳化物一直保留到钢的回火状态,影响了H<span style=\"color:red\">13</span>钢的等向性;良好的退火组织是制造高品质H<span style=\"color:red\">13</span>热作模具钢的关键因素。","authors":[{"authorName":"周健","id":"f3dbfab1-d59a-4d15-8cf9-dd5307c014f2","originalAuthorName":"周健"},{"authorName":"马党参","id":"d5ff54c9-3fcb-40f2-8f1d-2f378a311fde","originalAuthorName":"马党参"},{"authorName":"刘宝石","id":"463cbd6e-c85a-471c-97d8-ea333082f305","originalAuthorName":"刘宝石"},{"authorName":"康爱军","id":"d7097ede-636b-429c-bad1-f2460494de24","originalAuthorName":"康爱军"},{"authorName":"李向阳","id":"315e9568-9969-44a5-8ba8-d742ab891b90","originalAuthorName":"李向阳"}],"doi":"","fpage":"47","id":"ee687b80-e566-4333-8c19-d9c80f10019a","issue":"4","journal":{"abbrevTitle":"GTYJXB","coverImgSrc":"journal/img/cover/GTYJXB.jpg","id":"30","issnPpub":"1001-0963","publisherId":"GTYJXB","title":"钢铁研究学报"},"keywords":[{"id":"2c56802c-c506-497a-8e23-09eef0846c41","keyword":"H<span style=\"color:red\">13</span>钢","originalKeyword":"H13钢"},{"id":"da360a33-1538-4663-b128-488706882af5","keyword":"带状偏析","originalKeyword":"带状偏析"},{"id":"5a4316fc-8e28-4853-b20f-483dda6c92b0","keyword":"退火组织","originalKeyword":"退火组织"},{"id":"53da2600-1210-4d05-a90f-5cfbe91c1ea1","keyword":"碳化物偏析","originalKeyword":"碳化物偏析"},{"id":"f6d4a431-f277-464c-a33b-01de75e354bf","keyword":"成分偏析","originalKeyword":"成分偏析"}],"language":"zh","publisherId":"gtyjxb201204011","title":"H<span style=\"color:red\">13</span>钢带状偏析演化规律研究","volume":"24","year":"2012"}],"totalpage":340,"totalrecord":3396}