{"currentpage":1,"firstResult":0,"maxresult":10,"pagecode":5,"pageindex":{"endPagecode":5,"startPagecode":1},"records":[{"abstractinfo":"采用<span style=\"color:red\">稀土气</span><span style=\"color:red\">相</span><span style=\"color:red\">扩</span><span style=\"color:red\">渗</span><span style=\"color:red\">法</span>通过固-气界面反应以Keggin结构的K6[SiCoW11O39(H2O)]·13H2O为前驱体进行<span style=\"color:red\">稀土气</span><span style=\"color:red\">相</span><span style=\"color:red\">扩</span><span style=\"color:red\">渗</span>.经X射线衍射分析(XRD)、差热-热重分析(TG-DTA)、X射线光电子能谱分析(XPS)和X射线能谱(EDS)分析表明:前驱体<span style=\"color:red\">扩</span><span style=\"color:red\">渗</span>前后XRD衍射峰明显不同,<span style=\"color:red\">扩</span><span style=\"color:red\">渗</span>后产物已无Keggin结构的特征衍射峰,生成了新的四方结构化合物K0.57La0.0062WO3和K0.59Ce0.0014WO3.DTA-TG分析表明:在空气气氛中,K0.57La0.0062WO3于600℃开始分解.导电性测试结果表明,K0.57La0.0062WO3电导率最高为2.03S-cm-1,K0.59Ce0.0014WO3电导率最高为0.0834 S·cm-1.","authors":[{"authorName":"李昕","id":"24f050e2-a15b-45c7-8ca9-eedb13274f14","originalAuthorName":"李昕"},{"authorName":"刘冰","id":"4d3d18f6-9f8b-42a5-a641-d4a8f8193ecf","originalAuthorName":"刘冰"},{"authorName":"谢呈德","id":"453bb834-426a-4811-8ff9-235bb3c3d1b7","originalAuthorName":"谢呈德"}],"doi":"","fpage":"900","id":"064e358c-cc52-4dfe-a4ab-4754a31d9e79","issue":"5","journal":{"abbrevTitle":"XYJSCLYGC","coverImgSrc":"journal/img/cover/XYJSCLYGC.jpg","id":"69","issnPpub":"1002-185X","publisherId":"XYJSCLYGC","title":"稀有金属材料与工程"},"keywords":[{"id":"bebe322d-2c10-4aa3-a9fc-9935075c6a49","keyword":"<span style=\"color:red\">稀土气</span><span style=\"color:red\">相</span><span style=\"color:red\">扩</span><span style=\"color:red\">渗</span><span style=\"color:red\">法</span>","originalKeyword":"稀土气相扩渗法"},{"id":"ea4a12ca-e6fa-485e-a23e-8cfecc5229cc","keyword":"<span style=\"color:red\">稀土</span>钨青铜","originalKeyword":"稀土钨青铜"},{"id":"a5beab0a-a8a8-4bbd-bd12-ba968edc4c29","keyword":"导电性","originalKeyword":"导电性"}],"language":"zh","publisherId":"xyjsclygc200805035","title":"<span style=\"color:red\">稀土气</span><span style=\"color:red\">相</span><span style=\"color:red\">扩</span><span style=\"color:red\">渗</span>法制备<span style=\"color:red\">稀土</span>钨青铜KxLnyWO3及电性能","volume":"37","year":"2008"},{"abstractinfo":"采用化学气<span style=\"color:red\">相</span><span style=\"color:red\">扩</span><span style=\"color:red\">渗</span><span style=\"color:red\">法</span>对化工用碳钢填料进行<span style=\"color:red\">稀土</span>多元<span style=\"color:red\">扩</span><span style=\"color:red\">渗</span>,研究了填料的化学性能,力学性能和传质性能.结果表明,经<span style=\"color:red\">扩</span><span style=\"color:red\">渗</span>处理后碳钢填料的耐腐蚀性能明显增强,硬度提高,同时,填料塔的等板高度有所下降,使传质性能得到改善.并初步分析了<span style=\"color:red\">稀土</span>发生作用的可能机理.","authors":[{"authorName":"王进福","id":"b06032bf-5641-4fa8-9939-3e20f4065c7c","originalAuthorName":"王进福"},{"authorName":"徐衍岭","id":"e60ffc72-c637-4d99-972e-8fdae1dc74d4","originalAuthorName":"徐衍岭"},{"authorName":"梁志华","id":"74d07c8d-41f5-44da-98de-38b0c893d059","originalAuthorName":"梁志华"}],"doi":"10.3969/j.issn.1001-3660.2005.04.010","fpage":"30","id":"926d3f53-1ce1-49df-aa16-1d4d86bc8549","issue":"4","journal":{"abbrevTitle":"BMJS","coverImgSrc":"journal/img/cover/BMJS.jpg","id":"3","issnPpub":"1001-3660","publisherId":"BMJS","title":"表面技术   "},"keywords":[{"id":"2e1fb182-8eb3-4baa-9fcd-e9acfb1e1280","keyword":"碳钢填料","originalKeyword":"碳钢填料"},{"id":"b18aa606-da63-4233-83b3-2afd9219db2d","keyword":"<span style=\"color:red\">稀土</span>","originalKeyword":"稀土"},{"id":"5aca4d98-b392-4ab8-9d8c-e60f90940227","keyword":"<span style=\"color:red\">扩</span><span style=\"color:red\">渗</span>","originalKeyword":"扩渗"}],"language":"zh","publisherId":"bmjs200504010","title":"碳钢填料气<span style=\"color:red\">相</span><span style=\"color:red\">稀土</span><span style=\"color:red\">扩</span><span style=\"color:red\">渗</span>及其性能研究","volume":"34","year":"2005"},{"abstractinfo":"通过对钛酸铅陶瓷气<span style=\"color:red\">相</span><span style=\"color:red\">扩</span><span style=\"color:red\">渗</span><span style=\"color:red\">稀土</span>元素,制备了导电陶瓷材料. 通过X射线衍射、电子探针X射线能谱和扫描电镜测试分析,表明<span style=\"color:red\">稀土</span>元素La,Ce,Gd,Sm等均已渗入到PbTiO3陶瓷体相中,并生成了新的化合物La5O7NO3,La2C2O2,Gd2O3,La2Ti6O15,SmO和CeTi21O38,并使<span style=\"color:red\">扩</span><span style=\"color:red\">渗</span>后的PbTiO3基陶瓷的导电性能发生了十分显著的变化,其室温电阻率从纯PbTiO3陶瓷的2.0×1010 (·m下降为0.2 (·m,而且随着温度的变化,晶粒电阻呈现明显的PTCR效应,而晶界电阻随着温度的升高,呈急剧连续降低状态,总电阻的变化规律与晶界电阻的变化相类似,试样总电阻的PTCR效应已不存在,已表现出导电体特征.","authors":[{"authorName":"郝素娥","id":"d05fc2e9-1410-42f2-9a87-a5c82c47d864","originalAuthorName":"郝素娥"},{"authorName":"韦永德","id":"6396708e-e425-453f-8897-43399b39652f","originalAuthorName":"韦永德"},{"authorName":"黄金祥","id":"dbbcdd8e-a92f-4ff3-9eb3-2153582472d8","originalAuthorName":"黄金祥"},{"authorName":"孙亮","id":"15ad818e-4e82-43a4-8506-adb3da342a2a","originalAuthorName":"孙亮"}],"doi":"","fpage":"1361","id":"e20f06ac-189f-45d7-85df-976dcfb3379e","issue":"9","journal":{"abbrevTitle":"XYJSCLYGC","coverImgSrc":"journal/img/cover/XYJSCLYGC.jpg","id":"69","issnPpub":"1002-185X","publisherId":"XYJSCLYGC","title":"稀有金属材料与工程"},"keywords":[{"id":"ef3c3bf7-0411-4217-919f-abe461be1db5","keyword":"<span style=\"color:red\">稀土</span>","originalKeyword":"稀土"},{"id":"afa7624f-ae31-4889-870d-a94a469deb03","keyword":"钛酸铅","originalKeyword":"钛酸铅"},{"id":"33f98917-4187-41c9-afdf-d1e92c3670b6","keyword":"气<span style=\"color:red\">相</span><span style=\"color:red\">扩</span><span style=\"color:red\">渗</span>","originalKeyword":"气相扩渗"},{"id":"f0feea0d-9f4e-4aa2-9776-71e92e7b727d","keyword":"导电陶瓷","originalKeyword":"导电陶瓷"}],"language":"zh","publisherId":"xyjsclygc200509005","title":"采用气<span style=\"color:red\">相</span><span style=\"color:red\">稀土</span><span style=\"color:red\">扩</span><span style=\"color:red\">渗</span>法制备PbTiO3基导电陶瓷","volume":"34","year":"2005"},{"abstractinfo":"采用<span style=\"color:red\">稀土气</span><span style=\"color:red\">相</span>掺杂的方法制备了La,Pr,Gd改性的BaTiO3 基PTC陶瓷,通过室温电阻率和温-阻效应的测试及SEM分析,对其PTC特性进行了研究.结果表明:BaTiO3基PTC陶瓷经<span style=\"color:red\">稀土气</span><span style=\"color:red\">相</span>掺杂后,室温电阻率明显下降,在不同粉料配方基础上制备的4组BaTiO3基PTC陶瓷,经La,Pr,Gd气<span style=\"color:red\">相</span>掺杂后,其室温电阻率分别下降为2.5×105、70.0、220.0、40.0、3.5×104、50.0、9.6、5.0 Ω·m以及1.3×104、98.5、2.3×104、32.4 Ω·m.而<span style=\"color:red\">稀土</span>液<span style=\"color:red\">相</span>掺杂的BaTiO3 基PTC陶瓷的室温电阻率均在104Ω·m以上.<span style=\"color:red\">稀土气</span><span style=\"color:red\">相</span>掺杂BaTiO3 基PTC陶瓷的温-阻效应与<span style=\"color:red\">稀土</span>液<span style=\"color:red\">相</span>掺杂结果截然不同,产生了明显的NTCR效应.","authors":[{"authorName":"郝素娥","id":"b3f28a1a-00da-45fa-b377-d5cba7b77e6b","originalAuthorName":"郝素娥"},{"authorName":"黄金祥","id":"4f1dfa39-e415-4910-93c1-e1ace1f8025b","originalAuthorName":"黄金祥"},{"authorName":"孙亮","id":"b728ef03-ce12-4a90-aa8d-1d5970eab588","originalAuthorName":"孙亮"}],"doi":"10.3969/j.issn.1005-0299.2007.01.023","fpage":"91","id":"25209ee8-c2b8-4638-85bb-85b572c1b1f2","issue":"1","journal":{"abbrevTitle":"CLKXYGY","coverImgSrc":"journal/img/cover/CLKXYGY.jpg","id":"14","issnPpub":"1005-0299","publisherId":"CLKXYGY","title":"材料科学与工艺"},"keywords":[{"id":"64a53e8b-a5f6-4d28-a628-8b6e18fde4d4","keyword":"<span style=\"color:red\">稀土</span>","originalKeyword":"稀土"},{"id":"13d862bc-c67a-4acf-8720-390ec47b2cbf","keyword":"气<span style=\"color:red\">相</span>掺杂","originalKeyword":"气相掺杂"},{"id":"e5bc31a2-0462-40ae-9692-0682b4fd137b","keyword":"NTCR效应","originalKeyword":"NTCR效应"},{"id":"cf3b37e5-579b-4197-93e2-583fabc4ca85","keyword":"钛酸钡","originalKeyword":"钛酸钡"},{"id":"419acbfc-0b6f-46e4-809a-700f440a71b9","keyword":"电性能","originalKeyword":"电性能"}],"language":"zh","publisherId":"clkxygy200701023","title":"<span style=\"color:red\">稀土气</span><span style=\"color:red\">相</span>掺杂BaTiO3基PTC陶瓷的制备与电性能","volume":"15","year":"2007"},{"abstractinfo":"","authors":[{"authorName":"许越","id":"41af374a-4821-4cad-8c7c-6aae7d58b2a7","originalAuthorName":"许越"},{"authorName":"滕玉洁","id":"e8bbc3eb-1cea-4c62-b548-823f25995810","originalAuthorName":"滕玉洁"},{"authorName":"张勇","id":"46592f26-f107-4db7-b911-e7527ee62113","originalAuthorName":"张勇"},{"authorName":"江蓉","id":"6a75cf6f-c513-4fc5-9a41-ae6124f0be82","originalAuthorName":"江蓉"},{"authorName":"李英杰","id":"cccc0185-6215-4712-a067-63678de3705f","originalAuthorName":"李英杰"}],"doi":"10.3969/j.issn.1005-5053.2003.z1.059","fpage":"272","id":"c3d39a07-4de7-4e15-9807-61ee83229453","issue":"z1","journal":{"abbrevTitle":"HKCLXB","coverImgSrc":"journal/img/cover/HKCLXB.jpg","id":"41","issnPpub":"1005-5053","publisherId":"HKCLXB","title":"航空材料学报"},"keywords":[{"id":"1c9298f4-8aa8-4f0d-9c8c-55f32f19c881","keyword":"","originalKeyword":""}],"language":"zh","publisherId":"hkclxb2003z1059","title":"<span style=\"color:red\">稀土气</span><span style=\"color:red\">相</span><span style=\"color:red\">扩</span><span style=\"color:red\">渗</span>提高镁合金表面耐蚀性研究","volume":"23","year":"2003"},{"abstractinfo":"参照文献合成了标题化合物. 对所合成化合物进行了高温气<span style=\"color:red\">相</span>多组分混合<span style=\"color:red\">稀土</span>化学热<span style=\"color:red\">扩</span><span style=\"color:red\">渗</span>, 经ICP, XPS, IR, XRD和TG-DTA等测试分析证实, 微量<span style=\"color:red\">稀土</span>元素La和Ce等已渗入到杂多配合物的体<span style=\"color:red\">相</span>. 利用四电极<span style=\"color:red\">法</span>对<span style=\"color:red\">扩</span><span style=\"color:red\">渗</span>后化合物的导电性能进行了研究, 其导电率δ为9.2×0-3 S·cm-1, 比<span style=\"color:red\">扩</span><span style=\"color:red\">渗</span>前(δ=1.29×0-9 S·cm-1)提高了7.1×06倍.","authors":[{"authorName":"李玲","id":"aa3c4cd3-b17a-4303-85be-840705f4a182","originalAuthorName":"李玲"},{"authorName":"韦永德","id":"8b6dd5aa-367c-4f50-8609-ba3bf94abb85","originalAuthorName":"韦永德"},{"authorName":"杜华","id":"690d0f7d-6c0b-4d1c-a9d7-f36f8457cc4c","originalAuthorName":"杜华"},{"authorName":"周百斌","id":"305d304a-fe40-4869-847f-89ce174fee1a","originalAuthorName":"周百斌"},{"authorName":"于凯","id":"6d4bfcb8-f76c-4be4-a180-4fa12892bfee","originalAuthorName":"于凯"}],"doi":"10.3969/j.issn.0258-7076.2006.05.027","fpage":"699","id":"f3eb4d4b-82b3-45c9-8484-e541e5a68dd5","issue":"5","journal":{"abbrevTitle":"XYJS","coverImgSrc":"journal/img/cover/XYJS.jpg","id":"67","issnPpub":"0258-7076","publisherId":"XYJS","title":"稀有金属"},"keywords":[{"id":"7f46fdc4-873d-4695-8d62-16ea9f11b19b","keyword":"<span style=\"color:red\">稀土</span>","originalKeyword":"稀土"},{"id":"adefc3b6-2568-40e5-8440-338d7a50b929","keyword":"杂多配合物","originalKeyword":"杂多配合物"},{"id":"f0abdf93-197d-4d88-a738-2d878dfa0c37","keyword":"导电性","originalKeyword":"导电性"},{"id":"32412547-9213-410e-bbb0-9f3ffa39292d","keyword":"<span style=\"color:red\">扩</span><span style=\"color:red\">渗</span>","originalKeyword":"扩渗"},{"id":"0d85e86f-0931-41f1-970e-e0947135ae0f","keyword":"四电极<span style=\"color:red\">法</span>","originalKeyword":"四电极法"}],"language":"zh","publisherId":"xyjs200605027","title":"<span style=\"color:red\">稀土</span>对K11[Sm(AlW11O39H2)2]·21H2O的气<span style=\"color:red\">相</span>热<span style=\"color:red\">扩</span><span style=\"color:red\">渗</span>及其导电性研究","volume":"30","year":"2006"},{"abstractinfo":"<正> <span style=\"color:red\">稀土</span>元素作为合金化元素或变质元素,通常通过熔炼或铸造时加入钢或合金中,而用<span style=\"color:red\">扩</span><span style=\"color:red\">渗</span>的方法在钢和合金表面渗入<span style=\"color:red\">稀土</span>元素的研究则不多。近年来,我们用化学法、自配<span style=\"color:red\">渗</span>剂,在气<span style=\"color:red\">相</span>条件下对20钢、纯Fe表面进行<span style=\"color:red\">扩</span><span style=\"color:red\">渗</span><span style=\"color:red\">稀土</span>元素的研究工作。经离子探针、扫描电镜能谱分析、X射线荧光分析等测试,均证实了在20钢和纯Fe表面渗入了微量的Ce,La等<span style=\"color:red\">稀土</span>元素,这些元素优先沿晶界扩散,并富集于晶界。","authors":[{"authorName":"韦永德","id":"322b9f01-17fa-477b-a093-27609060b75a","originalAuthorName":"韦永德"},{"authorName":"刘志如","id":"5b4d8af3-fa54-4689-b6bb-fbd2cb4f8b1f","originalAuthorName":"刘志如"},{"authorName":"王春义","id":"5e42f46a-62fc-4219-b5f2-32ef2711fa0e","originalAuthorName":"王春义"},{"authorName":"范爱龄","id":"c69c970c-bd24-40e9-9e98-96a5d12e05d7","originalAuthorName":"范爱龄"},{"authorName":"程建民","id":"6585a482-5eaf-48cc-ad46-89e46911730b","originalAuthorName":"程建民"}],"categoryName":"|","doi":"","fpage":"121","id":"70ddd846-1a4e-4959-a8e4-f2fc317c9a2d","issue":"5","journal":{"abbrevTitle":"JSXB","coverImgSrc":"journal/img/cover/JSXB.jpg","id":"48","issnPpub":"0412-1961","publisherId":"JSXB","title":"金属学报"},"keywords":[],"language":"zh","publisherId":"0412-1961_1983_5_7","title":"用化学法对20钢、纯Fe表面<span style=\"color:red\">扩</span><span style=\"color:red\">渗</span><span style=\"color:red\">稀土</span>元素的研究","volume":"19","year":"1983"},{"abstractinfo":"研究了通过化学气<span style=\"color:red\">相</span><span style=\"color:red\">扩</span><span style=\"color:red\">渗</span><span style=\"color:red\">稀土</span>方法提高1Cr18Ni9钢表面耐腐蚀性能的作用.结果表明,经过65%硝酸腐蚀三个周期试验,<span style=\"color:red\">扩</span><span style=\"color:red\">渗</span><span style=\"color:red\">稀土</span>试样质量损失腐蚀速率明显减小;阳极极化曲线的测定结果证明了<span style=\"color:red\">扩</span><span style=\"color:red\">渗</span><span style=\"color:red\">稀土</span>后的试样临界钝化电流密度和稳定钝态下溶解电流密度降低,钝态电位区间加宽.经<span style=\"color:red\">扩</span><span style=\"color:red\">渗</span><span style=\"color:red\">稀土</span>处理的1Cr18Ni9钢晶界和晶内元素铬含量趋于一致,不存在贫铬区,耐腐蚀性能显著提高.","authors":[{"authorName":"王锐","id":"1d0f3645-125f-4b0a-80e7-4af268baf47e","originalAuthorName":"王锐"},{"authorName":"许越","id":"befa0b1d-8f0f-423b-b609-1e74ec9a1a80","originalAuthorName":"许越"},{"authorName":"吕祖舜","id":"571a1893-d653-4e2d-8035-7b6fe130ded4","originalAuthorName":"吕祖舜"},{"authorName":"刘红兵","id":"ee64ca4e-24f6-4d73-98ce-d3a666589a7f","originalAuthorName":"刘红兵"}],"doi":"10.3969/j.issn.1004-0277.2001.04.016","fpage":"75","id":"27a52e6d-ec80-4735-92d6-77b42fb672e3","issue":"4","journal":{"abbrevTitle":"XT","coverImgSrc":"journal/img/cover/XT.jpg","id":"65","issnPpub":"1004-0277","publisherId":"XT","title":"稀土"},"keywords":[{"id":"1876a359-c0e2-4226-bb1f-1559f0abea46","keyword":"<span style=\"color:red\">稀土</span>","originalKeyword":"稀土"},{"id":"1504270b-3247-43a8-ba1f-d76993cc5357","keyword":"1Cr18Ni9钢","originalKeyword":"1Cr18Ni9钢"},{"id":"be9f5dd0-edfa-4aa3-83b4-acf02a47ba75","keyword":"耐蚀性","originalKeyword":"耐蚀性"}],"language":"zh","publisherId":"xitu200104016","title":"<span style=\"color:red\">扩</span><span style=\"color:red\">渗</span><span style=\"color:red\">稀土</span>对1Cr18Ni9钢耐腐蚀性能的影响","volume":"22","year":"2001"},{"abstractinfo":"采用气<span style=\"color:red\">相</span><span style=\"color:red\">渗</span>的方法对K7CuBW11O39导电材料进行了<span style=\"color:red\">稀土</span>Eu的化学热<span style=\"color:red\">扩</span><span style=\"color:red\">渗</span>, 研究了<span style=\"color:red\">扩</span><span style=\"color:red\">渗</span>前后材料的导电性能.根据材料的TG-DTA测试结果确定了<span style=\"color:red\">稀土</span><span style=\"color:red\">扩</span><span style=\"color:red\">渗</span>的温度, 经ICP分析测试表明, 微量的Eu可渗入到试样中;利用四电极<span style=\"color:red\">法</span>和交流阻抗法对<span style=\"color:red\">扩</span><span style=\"color:red\">渗</span>前后的材料分别进行了导电性能的测试, 结果表明<span style=\"color:red\">扩</span><span style=\"color:red\">渗</span>后试样的电导率比<span style=\"color:red\">扩</span><span style=\"color:red\">渗</span>前的电导率提高了4.07×104倍.分析电导率与温度的变化关系曲线, 发现此材料在450 K附近具有热敏特性(PTC), 为杂多化合物的应用增加了一个新方向.","authors":[{"authorName":"李中华","id":"2f31c7d3-3adc-41ee-b63f-1cbe3f516cee","originalAuthorName":"李中华"},{"authorName":"韦永德","id":"6167d1cc-768d-41c5-8f78-ff7644bad3ed","originalAuthorName":"韦永德"},{"authorName":"郭元茹","id":"4c761976-9190-4a4a-b392-17b934061f04","originalAuthorName":"郭元茹"},{"authorName":"周百斌","id":"d78be57c-de58-42d7-b191-6fa6a16094a2","originalAuthorName":"周百斌"}],"doi":"10.3969/j.issn.0258-7076.2004.02.035","fpage":"434","id":"2624165e-5cb8-4924-bd3e-a39a309e3cd2","issue":"2","journal":{"abbrevTitle":"XYJS","coverImgSrc":"journal/img/cover/XYJS.jpg","id":"67","issnPpub":"0258-7076","publisherId":"XYJS","title":"稀有金属"},"keywords":[{"id":"83ee32e0-31ab-4ff7-b0c3-9bb8a1916486","keyword":"硼钨铜","originalKeyword":"硼钨铜"},{"id":"0747f06c-8793-432c-b95d-1cf9c8130466","keyword":"<span style=\"color:red\">稀土气</span><span style=\"color:red\">相</span><span style=\"color:red\">渗</span>","originalKeyword":"稀土气相渗"},{"id":"fca93bd1-ff50-4013-9d96-be4b11d5e1ab","keyword":"导电性","originalKeyword":"导电性"},{"id":"200f4669-0a2b-41d9-9c1b-ba35b549cdca","keyword":"热敏特性","originalKeyword":"热敏特性"},{"id":"53510d29-be02-4db0-afb3-10b31f7ff853","keyword":"<span style=\"color:red\">稀土</span>","originalKeyword":"稀土"}],"language":"zh","publisherId":"xyjs200402035","title":"硼钨铜气<span style=\"color:red\">相</span><span style=\"color:red\">渗</span><span style=\"color:red\">稀土</span>的导电及热敏性能","volume":"28","year":"2004"},{"abstractinfo":"为了改善BaTiO3陶瓷的电性能,采用气<span style=\"color:red\">相</span><span style=\"color:red\">法</span>对BaTiO3陶瓷<span style=\"color:red\">扩</span><span style=\"color:red\">渗</span>了Sm元素,探讨了Sm<span style=\"color:red\">扩</span><span style=\"color:red\">渗</span>对BaTiO3陶瓷导电性能和介电性能的影响.研究表明:经Sm<span style=\"color:red\">扩</span><span style=\"color:red\">渗</span>后,BaTiO3陶瓷的室温电阻率从4.3×109 Ω·m下降到2.1×102 Ω·m,而且随着频率增大和温度升高,交流电导逐渐增大,BaTiO3陶瓷的导电性更强;经Sm<span style=\"color:red\">扩</span><span style=\"color:red\">渗</span>的BaTiO3陶瓷的晶粒电阻随着温度的变化,呈现PTC效应,而晶界电阻随着温度的升高,呈急剧连续降低状态,总电阻的变化规律与晶界电阻的变化相一致,试样总电阻的PTC效应已不存在,有向导电体过渡的趋势;Sm<span style=\"color:red\">扩</span><span style=\"color:red\">渗</span>使BaTiO3陶瓷的介电常数在低频下显著增加,介电常数随温度的变化呈明显的PTC效应,并使BaTiO3陶瓷的居里温度升高到128.9℃.","authors":[{"authorName":"郝素娥","id":"5e7083bf-ff1a-40d7-a7f5-149a4b876ac6","originalAuthorName":"郝素娥"},{"authorName":"韦永德","id":"51850c6f-6eba-4ea8-a313-429a7a726246","originalAuthorName":"韦永德"}],"doi":"10.3969/j.issn.1005-0299.2004.03.009","fpage":"258","id":"bc6fc6b8-38a1-41c5-ab66-97a08c9a7ca6","issue":"3","journal":{"abbrevTitle":"CLKXYGY","coverImgSrc":"journal/img/cover/CLKXYGY.jpg","id":"14","issnPpub":"1005-0299","publisherId":"CLKXYGY","title":"材料科学与工艺"},"keywords":[{"id":"2b368bbd-4444-40a8-9615-9e8bb80efd8f","keyword":"钐","originalKeyword":"钐"},{"id":"a08dfd99-f77d-445b-bb91-ce0a31c8a228","keyword":"<span style=\"color:red\">稀土</span>","originalKeyword":"稀土"},{"id":"f8ec75d4-74a8-4727-9247-f8de2366b03a","keyword":"钛酸钡","originalKeyword":"钛酸钡"},{"id":"272a8634-978e-40d6-92d4-71013043603d","keyword":"气<span style=\"color:red\">相</span><span style=\"color:red\">扩</span><span style=\"color:red\">渗</span>","originalKeyword":"气相扩渗"},{"id":"320d8937-4d63-46c7-bc80-adeae2480bcb","keyword":"电性能","originalKeyword":"电性能"}],"language":"zh","publisherId":"clkxygy200403009","title":"Sm对BaTiO3陶瓷的气<span style=\"color:red\">相</span><span style=\"color:red\">扩</span><span style=\"color:red\">渗</span>及其电性能","volume":"12","year":"2004"}],"totalpage":7061,"totalrecord":70608}