{"currentpage":1,"firstResult":0,"maxresult":10,"pagecode":5,"pageindex":{"endPagecode":5,"startPagecode":1},"records":[{"abstractinfo":"以Li2O-SiO2(LSO)复合组分作为助烧剂,比较纳米掺杂和直接掺杂对X7R型BaTiO3基陶瓷显微结构和介电性能的影响,并进一步研究直接掺杂LSO的用量及烧结温度的影响,同时通过缺陷化学理论探讨了陶瓷的烧结机制。实验结果表明与纳米掺杂相比,直接掺杂助烧剂能够使掺杂元素进入晶格产生离子空位等缺陷,减少了物质迁移所需的活化能,从而有效促进陶瓷致密化过程,显著改善陶瓷的微观形貌及其介电性能。陶瓷样品的介电常数随着LSO助烧剂掺杂量的增加先增大后减小;当助烧剂掺杂量为0.08%(摩尔分数)时,样品可在1200℃烧结,室温介电常数达到4855,且容温特性满足X7R标准。通过直接掺杂能够使助烧剂十分均匀地分布在陶瓷材料中,可以显著减少助烧剂的用量,达到明显降低烧结温度的目的,并起到助烧兼改性的作用。","authors":[{"authorName":"米超辉","id":"4f5b8516-3f5e-461a-aad2-9d21fe7df274","originalAuthorName":"米超辉"},{"authorName":"崔斌","id":"a731fc69-ea1e-4027-9783-34cbde051d0d","originalAuthorName":"崔斌"},{"authorName":"游桥明","id":"2a7ba897-16fb-4999-9503-e8386d4273c6","originalAuthorName":"游桥明"},{"authorName":"畅柱国","id":"25f7f776-ceb8-4380-a09f-b10f4a386366","originalAuthorName":"畅柱国"},{"authorName":"史启祯","id":"af2b5421-d53d-4990-8882-514044f68d91","originalAuthorName":"史启祯"}],"doi":"","fpage":"2068","id":"04d42b10-1620-4545-82f5-7377b6672510","issue":"11","journal":{"abbrevTitle":"GNCL","coverImgSrc":"journal/img/cover/GNCL.jpg","id":"33","issnPpub":"1001-9731","publisherId":"GNCL","title":"功能材料"},"keywords":[{"id":"add5ee9f-025d-440a-86e1-8e0a3880d701","keyword":"纳米掺杂","originalKeyword":"纳米掺杂"},{"id":"68a1cbde-f78f-49c5-bdc9-a183b83fcf0e","keyword":"直接掺杂","originalKeyword":"直接掺杂"},{"id":"a7fec60b-cbba-48e1-8dfa-7f6e1fa05081","keyword":"Li2O-SiO2","originalKeyword":"Li2O-SiO2"},{"id":"94a888d7-61a9-438f-96e2-ead4862653e9","keyword":"BaTiO3","originalKeyword":"BaTiO3"}],"language":"zh","publisherId":"gncl201111037","title":"纳米掺杂和直接掺杂Li2O-SiO2复合助烧剂对X7R型BaTiO3基陶瓷显微结构和介电性能的影响","volume":"42","year":"2011"},{"abstractinfo":"The N occupying sites and magnetic structures in R_2Fe_(17)N_x(R=Y,Dy,Nd)are de- termined by neutron diffraction.The effects of the site occupation of N on magnetic properties are discussed primarily.","authors":[{"authorName":"YANG Jilian ZHANC Baisheng DINC Yongfan China Institute of Atomic Engergy","id":"754c808d-cb78-428b-bb6b-91b109f8c410","originalAuthorName":"YANG Jilian ZHANC Baisheng DINC Yongfan China Institute of Atomic Engergy"},{"authorName":"Beijing","id":"5448c61f-8f3b-473b-85af-5b5c3bc97fcf","originalAuthorName":"Beijing"},{"authorName":"ChinaYANG Yingchang ZHANG Xiaodong Peking University","id":"30867a4c-c9d1-4301-a1c7-9a33f87cb5dc","originalAuthorName":"ChinaYANG Yingchang ZHANG Xiaodong Peking University"},{"authorName":"Beijing","id":"5bce6ff8-80cd-435e-9ee7-50ed4aac7c6f","originalAuthorName":"Beijing"},{"authorName":"ChinaPAN Shuming General Research Institute for Non-Ferrous Metals","id":"865ebe74-85fa-4a2f-9fa6-fbd71f382d74","originalAuthorName":"ChinaPAN Shuming General Research Institute for Non-Ferrous Metals"},{"authorName":"Beijing","id":"5b1fb7ad-423d-449e-a356-d30448ac036a","originalAuthorName":"Beijing"},{"authorName":"China associate professor","id":"be7706d7-6635-4331-8e06-d43c9bc6491d","originalAuthorName":"China associate professor"},{"authorName":"P.O.Box 275","id":"d3dcfc72-317b-4d1e-acfb-46543e93a96c","originalAuthorName":"P.O.Box 275"},{"authorName":"Branch No.30","id":"504286c2-71d0-4482-aa98-62eb2d5ff5bb","originalAuthorName":"Branch No.30"},{"authorName":"Beijing 102413","id":"d677f6ea-ce87-4895-bc87-b51adb34b9a2","originalAuthorName":"Beijing 102413"},{"authorName":"China","id":"5db018d8-94c0-49e6-840f-d0be1de62231","originalAuthorName":"China"}],"categoryName":"|","doi":"","fpage":"345","id":"4bd119b0-b36e-4772-84c4-376d7400c99b","issue":"11","journal":{"abbrevTitle":"JSXBYWB","coverImgSrc":"journal/img/cover/amse.jpg","id":"49","issnPpub":"1006-7191","publisherId":"JSXBYWB","title":"金属学报(英文版)"},"keywords":[{"id":"463cd29e-c208-4e8d-993f-54b47bdb8c74","keyword":"neutron diffraction","originalKeyword":"neutron diffraction"},{"id":"a400e8b9-f007-4cf3-8c71-922079c2d89e","keyword":"null","originalKeyword":"null"},{"id":"2e23da66-d4de-48d7-9097-f1d4d60eb45c","keyword":"null","originalKeyword":"null"},{"id":"e6c2b93d-a775-47c5-aeb4-e2b54574481f","keyword":"null","originalKeyword":"null"},{"id":"74aa66a0-0591-4108-9522-3ec9de08fed9","keyword":"null","originalKeyword":"null"},{"id":"b10dd6b6-c225-49e8-b748-8e81e809012c","keyword":"null","originalKeyword":"null"}],"language":"en","publisherId":"1006-7191_1993_11_4","title":"NEUTRON DIFFRACTION STUDY ON R_2Fel_(17)N_x(R=Y,Dy,Nd)","volume":"6","year":"1993"},{"abstractinfo":"用HRTEM、TEM及EDAX分析研究了Al─Li—Cu—Mg—Zr合金中的一种新相(暂名H相)和六角Z相的结构,确定H相具有四方点阵,点阵参数为α=2.8nm,c=2.4nm,EDAX分析表明H相和Z相均含Al、Mg、Cu发现H相与Z相的共存取向关系为[100]‖[1120]Z,[1010]H‖[0001]Z。还观察到Z相中一种特有的旋转畴结构","authors":[{"authorName":"张立春","id":"9dfc7cfb-67e0-4ff6-bfa2-73880c619d8e","originalAuthorName":"张立春"},{"authorName":"何安强","id":"d0c3325e-0b5f-4f2c-a38a-a1992f9294df","originalAuthorName":"何安强"},{"authorName":"叶恒强","id":"e32fef43-40f5-4a6a-b038-4f403da78b19","originalAuthorName":"叶恒强"},{"authorName":"张永昌","id":"709abb2a-90d6-479c-a0dd-02b33cb145c5","originalAuthorName":"张永昌"}],"categoryName":"|","doi":"","fpage":"227","id":"46924c6b-9dbd-4b66-81d8-a136472a8642","issue":"3","journal":{"abbrevTitle":"CLYJXB","coverImgSrc":"journal/img/cover/CLYJXB.jpg","id":"16","issnPpub":"1005-3093","publisherId":"CLYJXB","title":"材料研究学报"},"keywords":[{"id":"00efebec-2ea6-4bbd-ba5e-9a1abb305e2b","keyword":"Al─Li─Cu─Mg─Zr合金.四方H相","originalKeyword":"Al─Li─Cu─Mg─Zr合金.四方H相"},{"id":"18702d7d-2c96-4958-873e-8aa51194d8d8","keyword":" tetragonal H phase","originalKeyword":" tetragonal H phase"},{"id":"f484c185-9ccb-49c3-bf9f-e2628029a652","keyword":"hexagonal Z phase","originalKeyword":"hexagonal Z phase"}],"language":"zh","publisherId":"1005-3093_1994_3_3","title":"快速凝固Al—Li─Cu—Mg—Zr合金中H相和Z相的TEM研究","volume":"8","year":"1994"},{"abstractinfo":"用中子衍射法测定了R_2Fe_(17)N_x(R=Y,Dy,Nd)中N的占位及磁结构,初步讨论了N的占位对磁性能的影响","authors":[{"authorName":"杨继廉","id":"1754b537-6a75-42c7-8280-8df624d93da2","originalAuthorName":"杨继廉"},{"authorName":"张百生","id":"fd3cf21e-3df2-4561-b322-a7c6f96232eb","originalAuthorName":"张百生"},{"authorName":"丁永凡","id":"f28898d6-3b0d-4ed4-a958-7334ec345fd5","originalAuthorName":"丁永凡"},{"authorName":"杨应昌","id":"31bfb2bd-1d3c-4528-a4a4-1896b70947e2","originalAuthorName":"杨应昌"},{"authorName":"张晓东","id":"70f16a8b-1036-4488-a02e-9d326c6b08e9","originalAuthorName":"张晓东"},{"authorName":"潘树明","id":"3bacbd69-87a8-4ed9-8756-bf1db5f5359a","originalAuthorName":"潘树明"}],"categoryName":"|","doi":"","fpage":"84","id":"98080509-8c08-4705-b2e2-0e1392504668","issue":"3","journal":{"abbrevTitle":"JSXB","coverImgSrc":"journal/img/cover/JSXB.jpg","id":"48","issnPpub":"0412-1961","publisherId":"JSXB","title":"金属学报"},"keywords":[{"id":"b5cf550a-c463-4bf8-a7c6-333615ad3130","keyword":"中子衍射","originalKeyword":"中子衍射"},{"id":"ed89c819-d6ee-4ff6-beb3-b0b75eeee9b1","keyword":"Curie temperature","originalKeyword":"Curie temperature"},{"id":"fcf4794c-bf38-4cf6-bb59-9fcb9afc34d9","keyword":"permanent magnet","originalKeyword":"permanent magnet"}],"language":"zh","publisherId":"0412-1961_1993_3_5","title":"R_2Fe_(17)N_x中子衍射研究(R=Y,Dy,Nd)","volume":"29","year":"1993"},{"abstractinfo":"利用高分辨电镜(HRTEM)和常规电子显微术研究了快速凝固Al-Li-Cu—Mg—Zr合金中Z相和T相的结构关系,发现两相间两种确定的晶体学取向关系,并以此为依据解释了Z相和T相的某些结构缺陷两相的结构有密切关联,其中一相中缺陷的扩展会导致另一相的形成","authors":[{"authorName":"张立春","id":"c7400300-d7ec-4300-8cc5-75fe3b8bf40c","originalAuthorName":"张立春"},{"authorName":"何安强","id":"2e93c9d9-bd96-4c7f-9b67-901618b0f1f9","originalAuthorName":"何安强"},{"authorName":"吴玉琨","id":"e7cdc28c-cd4e-449c-8edf-4af6c3d0deec","originalAuthorName":"吴玉琨"},{"authorName":"叶恒强","id":"86486ff3-49b4-40df-8744-fe8d35d209f0","originalAuthorName":"叶恒强"},{"authorName":"张永昌","id":"bf329ae1-004c-4c73-bc78-735c67285773","originalAuthorName":"张永昌"}],"categoryName":"|","doi":"","fpage":"10","id":"152fd7c8-49f8-4325-886b-2a42fe20a8eb","issue":"8","journal":{"abbrevTitle":"JSXB","coverImgSrc":"journal/img/cover/JSXB.jpg","id":"48","issnPpub":"0412-1961","publisherId":"JSXB","title":"金属学报"},"keywords":[{"id":"40a467a9-8580-4e91-82bd-5982dab62844","keyword":"Al-Li-Cu-Mg-Zr合金","originalKeyword":"Al-Li-Cu-Mg-Zr合金"},{"id":"75cb0330-db1c-48c3-988c-01c98df9ddb5","keyword":"Z hexagonal phase","originalKeyword":"Z hexagonal phase"},{"id":"839106e5-6937-4ac9-b717-d42ed60eef2a","keyword":"T f.c.c. phase","originalKeyword":"T f.c.c. phase"},{"id":"93965c57-39c0-47d5-aff4-9746096cdb63","keyword":"shear structure","originalKeyword":"shear structure"}],"language":"zh","publisherId":"0412-1961_1993_8_8","title":"快速凝固Al-Li-Cu-Mg-Zr合金中Z相和T相的结构关系","volume":"29","year":"1993"},{"abstractinfo":"通过不同Z-pin角度(15°和25°)和夹芯厚度(8mm和12.7mm)的X状Z-pin增强泡沫夹层材料的剪切性能试验,与相同材料同尺寸的未增强件进行对比,考察X状Z-pin对泡沫夹层结构的增强作用.试验结果表明,X状Z-pin增强使材料的剪切强度和刚度都有较大幅度的提高;同时,Z-pin的加入使该结构具有与传统泡沫夹层材料不同的剪切破坏形式.在此基础上,结合空间网架结构和等效夹杂方法,提出了X状Z-pin增强泡沫夹层结构剪切刚度模型,计算结果与试验值符合良好.结果表明,X状Z-pin增强不仅能大幅度提高泡沫夹层结构的剪切性能,并具有良好的可设计性,可以通过改变Z-pin角度和材料等改变其力学性能.","authors":[{"authorName":"杜龙","id":"06bbe421-cb81-4e1a-96b2-2d940926225e","originalAuthorName":"杜龙"},{"authorName":"矫桂琼","id":"3827882e-3c51-45ff-8752-51033411abc2","originalAuthorName":"矫桂琼"},{"authorName":"黄涛","id":"61cb81f0-3227-48dd-9d96-cc223aa592b1","originalAuthorName":"黄涛"},{"authorName":"赵龙","id":"3767374d-83e1-4fa1-96d3-3d8089cca211","originalAuthorName":"赵龙"},{"authorName":"黄峰","id":"fd736871-b106-4950-80c4-70a045055685","originalAuthorName":"黄峰"}],"doi":"10.3321/j.issn:1000-3851.2007.06.024","fpage":"140","id":"093cf1b7-6a08-4991-a711-24b9b2c8ede3","issue":"6","journal":{"abbrevTitle":"FHCLXB","coverImgSrc":"journal/img/cover/FHCLXB.jpg","id":"26","issnPpub":"1000-3851","publisherId":"FHCLXB","title":"复合材料学报"},"keywords":[{"id":"291dd122-158c-42c8-8456-ec1d9a7dd4bd","keyword":"夹层结构","originalKeyword":"夹层结构"},{"id":"0c2c60a5-fd08-4a6b-85f0-4e1586976659","keyword":"Z-pin增强","originalKeyword":"Z-pin增强"},{"id":"3848d1b2-4ef7-43b7-9051-ed348964d295","keyword":"剪切性能","originalKeyword":"剪切性能"}],"language":"zh","publisherId":"fhclxb200706024","title":"X状Z-pin增强泡沫夹层结构的剪切性能","volume":"24","year":"2007"},{"abstractinfo":"采用模铸浇注、3 800 mm轧机轧制、正火热处理工艺成功地开发并批量生产了82 mm厚Q345R-Z35锅炉压力容器用钢板,钢板超声波探伤全部符合JB/T 4730--2008一级标准,钢板屈服强度平均为350 MPa,抗拉强度平均为520 MPa,伸长率平均值为28%,平均冲击功为144 J,抗层状撕裂厚度拉伸性能全部合格,抗氢致开裂性(HIC)试验检测结果表明:裂纹敏感率、裂纹长度率、裂纹宽度率均为0.","authors":[{"authorName":"许少普","id":"ac84fcba-5b17-4655-92fd-23731da723d9","originalAuthorName":"许少普"},{"authorName":"崔冠军","id":"021bd495-6329-424d-95ba-97006dcb1830","originalAuthorName":"崔冠军"},{"authorName":"李治强","id":"430fe694-e77e-4256-9ac4-d23c9aa3c652","originalAuthorName":"李治强"},{"authorName":"杨东","id":"c9058ade-18c6-4961-9725-3c9d6a90b464","originalAuthorName":"杨东"},{"authorName":"庞百鸣","id":"fd023cdd-975e-41ef-ab25-67531ff2cb0f","originalAuthorName":"庞百鸣"},{"authorName":"张智慧","id":"1ad98863-b720-4262-b15c-0f51cb390c6a","originalAuthorName":"张智慧"}],"doi":"","fpage":"55","id":"d2547285-f610-4bb5-8185-cbe29ad8b5ed","issue":"2","journal":{"abbrevTitle":"GTYJ","coverImgSrc":"journal/img/cover/GTYJ.jpg","id":"29","issnPpub":"1001-1447","publisherId":"GTYJ","title":"钢铁研究"},"keywords":[{"id":"3d15806c-f15c-4035-ae1a-d70069e7093a","keyword":"抗氢致裂纹","originalKeyword":"抗氢致裂纹"},{"id":"b3cf00e4-2d20-45fd-b02a-245ca7ace925","keyword":"抗层状撕裂","originalKeyword":"抗层状撕裂"},{"id":"d4c9a7a3-670d-425a-940b-719e3c0d6e6b","keyword":"特厚压力容器板","originalKeyword":"特厚压力容器板"}],"language":"zh","publisherId":"gtyj201102015","title":"抗HIC压力容器用钢Q345R-Z35特厚板的开发","volume":"39","year":"2011"},{"abstractinfo":"In this study, the transport and magnetic properties of electron-doped perovskites R(x)Ca(1-x)MnO(3) (R = La, Y and Ce) were investigated. As the R ion content increases, the crystal structure, resistivity, magnetoresistance, magnetization and related characteristic temperature of these systems all vary systematically. The data show that the variations in the electrical transport properties are mainly dependent on carrier concentration, whereas the magnetic properties of these systems are also dependent on crystal structure. When the carrier concentration exceeds a certain level, charge ordering occurs, leading to the localized electronic state and peaks in the magnetization curves. The magnetic transition temperature T(N) can be well described by crystal structural parameters, suggesting that crystal structure and magnetic properties are strongly coupled to each other.","authors":[],"categoryName":"|","doi":"","fpage":"","id":"3cc88f0d-effd-49c0-a235-4a5181cf755a","issue":"19","journal":{"abbrevTitle":"JOPM","id":"f0e359df-48a6-4a7f-b16d-2389d3e793ee","issnPpub":"0953-8984","publisherId":"JOPM","title":"Journal of Physics-Condensed Matter"},"keywords":[{"id":"cdf02b23-b3aa-4002-be51-595aa2c1e77d","keyword":"rare-earth manganates;phase-separation;colossal magnetoresistance;manganites;oxides;bandwidth;physics;camno3;ln","originalKeyword":"rare-earth manganates;phase-separation;colossal magnetoresistance;manganites;oxides;bandwidth;physics;camno3;ln"}],"language":"en","publisherId":"0953-8984_2009_19_2","title":"Structure, transport and magnetic properties of electron-doped perovskites R(x)Ca(1-x)MnO(3) (R = La, Y and Ce)","volume":"21","year":"2009"},{"abstractinfo":"In Ho2Fe14B and Ho2Fe14C the temperature dependence of the ac initial susceptibility between 4.2 and 300 K shows two peaks. The peak at the lower temperature can be explained by a well-known spin reorientation transition (at 62 K for Ho2Fe14B and at 40 K for Ho2Fe14C). The peak at the higher temperature (at 245 K for Ho2Fe14B and at 265 K for Ho2Fe14C) disappears when the external field is applied parallel or perpendicular to the preferential direction of a magnetically aligned sample. The similar peak was also traced for R2Fe14X compounds (R = Sm, Tb, Dy, Ho, Er, and Tm; X = B or C). Searching for the nature of this peak traced by measuring the temperature dependence of the ac susceptibility for 3d-4f compounds is still under progress.","authors":[],"categoryName":"|","doi":"","fpage":"6372","id":"e86d8953-f244-46e9-8aad-584dee71b5c6","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_1991_10_3","title":"AN UNIDENTIFIED MAGNETIC TRANSITION IN R2FE14X COMPOUNDS (R = SM, TB, DY, HO, ER, AND TM - X = B OR C)","volume":"70","year":"1991"},{"abstractinfo":"The effect of Co substitution on structure, phase transformation, and magnetic properties of R(16)Fe(76-x)Co(x)C(8) (R equivalent to Nd, Dy; 0 <= x <= 76) alloys prepared by a remilling process has been studied systematically. The process of remilling and subsequent annealing is more beneficial for the formation of Nd(2)(Fe,Co)(14)C compound in Nd(16)Fe(76-x)Co(x)C(8) alloys than in Dy(16)Fe(76-x)Co(x)C(8) alloys. The R(2)(Fe,Co)(14)C phase is obtained for Nd(16)Fe(76-x)Co(x)C(8) alloys with 0 <= x <= 20 and Dy(16)Fe(76-x)Co(x)C(8) alloys with 0 <= x <= 25. Higher Co content results in the formation of Nd(2)(Fe,Co)(17)C(delta)-type phase and Dy(Fe,Co)(7) phase for Nd(16)Fe(76-x)Co(x)C(8) and Dy(16)Fe(76-x)Co(x)C(8) alloys, respectively. The high coercivity, (i)H(c)=48.5 kOe, is achieved for Dy(16)Fe(51)Co(25)C(8) alloy. (C) 2008 American Institute of Physics.","authors":[],"categoryName":"|","doi":"","fpage":"","id":"d91bfe0a-996c-424d-b166-1d63bc871855","issue":"7","journal":{"abbrevTitle":"JOAP","id":"7dcf8a89-0513-40ee-be2d-759941dcef7e","issnPpub":"0021-8979","publisherId":"JOAP","title":"Journal of Applied Physics"},"keywords":[{"id":"0de74351-9c2a-4b13-b1f7-25c2c417896b","keyword":"permanent-magnets;r2fe14c;carbides;carbon","originalKeyword":"permanent-magnets;r2fe14c;carbides;carbon"}],"language":"en","publisherId":"0021-8979_2008_7_1","title":"Structure, phase transformation, and magnetic properties of R(16)Fe(76-x)Co(x)C(8) (R equivalent to Nd, Dy; 0 <= x <= 76) alloys prepared by a remilling process","volume":"103","year":"2008"}],"totalpage":3564,"totalrecord":35638}