{"currentpage":1,"firstResult":0,"maxresult":10,"pagecode":5,"pageindex":{"endPagecode":5,"startPagecode":1},"records":[{"abstractinfo":"采用失重法、极化曲线、电化学阻抗谱和腐蚀形貌等方法研究了微量Sb对<span style=\"color:red\">Mg-5A1</span>—<span style=\"color:red\">2Sr</span>合金在3．5mass％NaCl中性水溶液中耐腐蚀性能的影响。结果表明，<span style=\"color:red\">Mg-5A1</span>—<span style=\"color:red\">2Sr</span>—xSb（x=O，0．3，O．6，1．0）合金在3．5mass％NaCl中性水溶液中初期的腐蚀类型为点蚀，点蚀源于块状三元T相和颗粒状SbSr<span style=\"color:red\">2</span>相。这些相的数量越多，尺寸越大，合金的腐蚀愈严重。网状分布的A14<span style=\"color:red\">Sr</span>相能够成为合金腐蚀的有效障碍。<span style=\"color:red\">Mg-5Al-2Sr</span>合金中加入0．3％Sb不仅能够有效地细化OL—<span style=\"color:red\">Mg</span>基体组织，同时促进了A14<span style=\"color:red\">Sr</span>相的形成，使该相的分布更趋网状化，该合金的自腐蚀电位明显正移，腐蚀电流密度减小，腐蚀速率降低，合金的耐蚀性能提高。","authors":[{"authorName":"刘子利","id":"510f5771-a284-4e78-ba62-0c36c24f95ea","originalAuthorName":"刘子利"},{"authorName":"朱晓春","id":"dc49eb0f-a5e2-40d9-983d-520eb0c53170","originalAuthorName":"朱晓春"},{"authorName":"周桂斌","id":"d9ce92c6-7a06-428b-b808-8d22bc727d9b","originalAuthorName":"周桂斌"},{"authorName":"李健","id":"47f89087-576c-4f04-9686-2f80b6afd75d","originalAuthorName":"李健"}],"doi":"","fpage":"478","id":"3a1947c0-de5c-4561-b095-a18f1267d57b","issue":"6","journal":{"abbrevTitle":"ZGFSYFHXB","coverImgSrc":"journal/img/cover/中国腐蚀封面19-3期-01.jpg","id":"81","issnPpub":"1005-4537","publisherId":"ZGFSYFHXB","title":"中国腐蚀与防护学报"},"keywords":[{"id":"cf3e1609-3095-4c87-b6be-28389d15c7a8","keyword":"<span style=\"color:red\">Mg-5A1</span>—<span style=\"color:red\">2Sr</span>","originalKeyword":"Mg-5A1—2Sr"},{"id":"cd98347d-5a9a-42f9-9a76-d873651349f0","keyword":"Sb腐蚀性能","originalKeyword":"Sb腐蚀性能"}],"language":"zh","publisherId":"zgfsyfhxb201206009","title":"Sb对<span style=\"color:red\">Mg-5A1-2Sr</span>合金耐腐蚀性能的影响","volume":"32","year":"2012"},{"abstractinfo":"采用失重法、极化曲线、电化学阻抗谱和腐蚀形貌等方法研究了微量Sb对<span style=\"color:red\">Mg-5A1</span>—<span style=\"color:red\">2Sr</span>合金在3．5mass％NaCl中性水溶液中耐腐蚀性能的影响。结果表明，<span style=\"color:red\">Mg-5A1</span>—<span style=\"color:red\">2Sr</span>—xSb（x=O，0．3，O．6，1．0）合金在3．5mass％NaCl中性水溶液中初期的腐蚀类型为点蚀，点蚀源于块状三元T相和颗粒状SbSr<span style=\"color:red\">2</span>相。这些相的数量越多，尺寸越大，合金的腐蚀愈严重。网状分布的A14<span style=\"color:red\">Sr</span>相能够成为合金腐蚀的有效障碍。<span style=\"color:red\">Mg-5Al-2Sr</span>合金中加入0．3％Sb不仅能够有效地细化OL—<span style=\"color:red\">Mg</span>基体组织，同时促进了A14<span style=\"color:red\">Sr</span>相的形成，使该相的分布更趋网状化，该合金的自腐蚀电位明显正移，腐蚀电流密度减小，腐蚀速率降低，合金的耐蚀性能提高。","authors":[{"authorName":"刘子利","id":"47eb22de-f944-4272-a0f0-77810c8db7af","originalAuthorName":"刘子利"},{"authorName":"朱晓春","id":"69566cca-f828-4f5a-b2e4-78cf4fea4849","originalAuthorName":"朱晓春"},{"authorName":"周桂斌","id":"e533d436-1f8c-4441-8e97-f9e708b38540","originalAuthorName":"周桂斌"},{"authorName":"李健","id":"03ffe2d8-12c1-4c1d-8c0f-1dfb2f2c2609","originalAuthorName":"李健"}],"doi":"","fpage":"478","id":"a1b6004e-6dc0-4b83-b866-c42a31aecf4d","issue":"6","journal":{"abbrevTitle":"ZGFSYFHXB","coverImgSrc":"journal/img/cover/中国腐蚀封面19-3期-01.jpg","id":"81","issnPpub":"1005-4537","publisherId":"ZGFSYFHXB","title":"中国腐蚀与防护学报"},"keywords":[{"id":"eb9ba5e1-bebb-4651-bdf3-5cb7e0a69601","keyword":"<span style=\"color:red\">Mg-5A1</span>—<span style=\"color:red\">2Sr</span>","originalKeyword":"Mg-5A1—2Sr"},{"id":"53b7bd86-86e1-4f26-a803-97adf5f7cb57","keyword":"Sb腐蚀性能","originalKeyword":"Sb腐蚀性能"}],"language":"zh","publisherId":"zgfsyfhxb201206009","title":"Sb对<span style=\"color:red\">Mg-5A1-2Sr</span>合金耐腐蚀性能的影响","volume":"32","year":"2012"},{"abstractinfo":"采用表面活性元素Sb微合金化的方法制备了<span style=\"color:red\">Mg-5A1-2Sr</span>-χSb（χ=0，0．3，0．6，1．0）合金，通过金相显微镜、X射线衍射仪、扫描电镜和力学性能测试等方法研究了sb含量对<span style=\"color:red\">Mg</span>～<span style=\"color:red\">5A1</span>—<span style=\"color:red\">2Sr</span>合金微观组织和力学性能的影响,结果表明，<span style=\"color:red\">Mg-5A1-2Sr</span>-χSb合金铸态组织主要由枝晶α-<span style=\"color:red\">Mg</span>、沿晶界或分布在枝晶闾的层状或离异共晶的Al4<span style=\"color:red\">Sr</span>相、块状三元<span style=\"color:red\">Mg9Al3Sr</span>相（T相）和颗粒状SbSr<span style=\"color:red\">2</span>相组成，随着Sb含量的增加，Sb-<span style=\"color:red\">Sr</span>，相的数量逐渐增多，T相逐渐减少，Sb的质量分数为0．6％时，断续分布的Al4<span style=\"color:red\">Sr</span>相和细小弥散分布的Sb-<span style=\"color:red\">Sr</span>，相能够提高<span style=\"color:red\">Mg-5A1-2Sr</span>合金的室温和高温（150℃）机械性能。","authors":[{"authorName":"朱晓春","id":"d8397181-4c34-4450-98c8-abde49bf9db5","originalAuthorName":"朱晓春"},{"authorName":"刘子利","id":"7b96d022-7289-40dc-96dd-4ac8a67e84c5","originalAuthorName":"刘子利"},{"authorName":"周桂斌","id":"c8d127f2-094e-46d6-8d77-4cb4082c0b13","originalAuthorName":"周桂斌"},{"authorName":"李健","id":"1b43a8ca-7730-4fa0-9189-84a2418d0443","originalAuthorName":"李健"}],"doi":"","fpage":"60","id":"a8ad08fd-c83e-4a6e-bb46-c71323a5ffc5","issue":"5","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":"ff59f5c2-7f2e-458f-a28d-90f15ab93fda","keyword":"<span style=\"color:red\">Mg-5A1-2Sr</span>","originalKeyword":"Mg-5A1-2Sr"},{"id":"1db8026f-56a4-4611-ae64-e5aadc23f253","keyword":"Sb","originalKeyword":"Sb"},{"id":"11b0d493-3f7a-465c-84c7-98f5a4de79e2","keyword":"碱土","originalKeyword":"碱土"},{"id":"729b2925-8a56-40bf-bd9d-6dad890e720a","keyword":"显微组织","originalKeyword":"显微组织"},{"id":"2b503d28-0d3a-4540-91d9-d400b52086db","keyword":"力学性能","originalKeyword":"力学性能"}],"language":"zh","publisherId":"clkxygy201205012","title":"Sb对<span style=\"color:red\">Mg-5A1-2Sr</span>合金组织和性能的影响","volume":"20","year":"2012"},{"abstractinfo":"制备了不同Y含量的<span style=\"color:red\">Mg-5A1-1Sr-2</span>Ca-xY（x=0，<span style=\"color:red\">1，2，5</span>）合金试样，采用光学显微镜（OM）、扫描电子显微镜（SEM）、X射线衍射仪（XRD）、材料试验机等观察测试合金的微观组织和力学性能。结果表明，未添加Y时，合金晶粒大小不均匀，且多呈柱状，晶内有较多的点状化合物；Y含量<span style=\"color:red\">1</span>％时，晶粒细化、球化且大小较均匀；Y含量<span style=\"color:red\">2</span>％时，晶粒趋于柱状；Y含量<span style=\"color:red\">5</span>％时，晶粒形状不规则、大小极不均匀。随Y含量的增加，室温和高温力学性能呈先升后降趋势，最高点为Y含量<span style=\"color:red\">1</span>％，其室温和高温抗拉强度分别较无Y合金提高了约33．8％和25．4％。","authors":[{"authorName":"谢卫东","id":"1651a126-b8fd-433b-947c-8ed5b51da9c9","originalAuthorName":"谢卫东"},{"authorName":"王春光","id":"53dfdbb7-06ab-4a29-b1f7-dc1fab92a468","originalAuthorName":"王春光"},{"authorName":"宁旭","id":"31e72d6f-8ac4-4283-85a1-c9f6b185c5b6","originalAuthorName":"宁旭"},{"authorName":"党春梅","id":"c881e258-c71e-4ec7-954c-accc6c9b1ab4","originalAuthorName":"党春梅"},{"authorName":"彭晓东","id":"fd525062-e430-42bd-a7f1-dd90f03ff68c","originalAuthorName":"彭晓东"},{"authorName":"魏群义","id":"bc7c2561-c619-4cec-a1ec-a08d1b0a24da","originalAuthorName":"魏群义"}],"doi":"","fpage":"128","id":"2048bf5c-3232-43d6-a5a6-1c0f5ef3fd43","issue":"1","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":"8657dc6c-2806-4498-89da-93b4da99e8f9","keyword":"Y","originalKeyword":"Y"},{"id":"2faa4579-314a-4a0c-9130-e2ca47e5aaa1","keyword":"Ca","originalKeyword":"Ca"},{"id":"cec30e0e-4f36-4c77-86fd-a972620c3f13","keyword":"镁合金","originalKeyword":"镁合金"},{"id":"3d35fa82-5973-41eb-afcd-bc07e740290d","keyword":"晶粒细化","originalKeyword":"晶粒细化"}],"language":"zh","publisherId":"jsrclxb201201024","title":"<span style=\"color:red\">Mg-5Al-1Sr-2</span>Ca-xY合金组织及力学性能","volume":"33","year":"2012"},{"abstractinfo":"研究了稀土元素Y含量的不同对<span style=\"color:red\">Mg-5Al-1Sr-2</span>Ca合金微观组织和耐腐蚀性的影响.使用对掺法制备了<span style=\"color:red\">Mg-5Al-1</span> <span style=\"color:red\">Sr-2</span>Ca-XY(X=0,0.5,0.7,1.0;质量分数,％)合金.采用光学显微镜(OM)、扫描电镜(SEM)和X射线衍射(XRD)分析了该合金.结果表明,随着Y的加入,合金中出现Al<span style=\"color:red\">2</span>Y新相,合金晶粒得到细化.当Y含量为0.7％时,合金晶粒最细.但是当Y含量大于0.7％时,晶粒变大,并且不规则.通过静态失重测试和极化曲线法研究了合金的耐腐蚀性.发现随着Y的添加提高了合金的平衡电位和腐蚀电位,耐腐蚀性提高.在本实验范围内,当Y含量为0.7％时,合金的耐腐蚀性最好.","authors":[{"authorName":"谢苏云","id":"e595a17d-8934-4b72-b4c9-09edd4a3d4f2","originalAuthorName":"谢苏云"},{"authorName":"彭晓东","id":"ac53977e-511f-45e5-99fe-26e02705e63e","originalAuthorName":"彭晓东"},{"authorName":"李俊辰","id":"936ec9ca-373a-463d-b208-9efbd7cf811c","originalAuthorName":"李俊辰"},{"authorName":"王春光","id":"c28df385-3f9d-4e71-a3ed-fea17396d02d","originalAuthorName":"王春光"},{"authorName":"杨艳","id":"f4dc8fd0-53b3-4d0f-8f70-2a4305e9f434","originalAuthorName":"杨艳"}],"doi":"","fpage":"52","id":"b9e9b1fd-f9cc-424a-ae9b-096fcf6e7b4f","issue":"1","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":"9bfd8465-a009-41dd-95a8-9a8d8b984086","keyword":"Y","originalKeyword":"Y"},{"id":"1e2caa40-5e33-4a8c-9c04-2bbdcb112484","keyword":"镁合金","originalKeyword":"镁合金"},{"id":"7ff3fbba-58cc-4197-8776-8681d432517c","keyword":"微观组织","originalKeyword":"微观组织"},{"id":"e671176e-e121-4147-814e-874177ea456d","keyword":"耐腐蚀性能","originalKeyword":"耐腐蚀性能"}],"language":"zh","publisherId":"xyjsclygc201401011","title":"稀土Y对<span style=\"color:red\">Mg-5Al-1Sr-2</span>Ca合金组织和耐腐蚀性能的影响","volume":"43","year":"2014"},{"abstractinfo":"为研究均匀化退火处理对<span style=\"color:red\">Mg-3Al-1</span>Zn-2.2/<span style=\"color:red\">5Sr</span>镁合金中第二相的影响,通过X射线衍射分析(XRD)、扫描电镜观察(SEM)和能谱分析(EDS)等手段,并结合Pandat热力学计算软件,对<span style=\"color:red\">Mg-3Al-1</span>Zn-2.2/<span style=\"color:red\">5Sr</span>镁合金均匀化退火后组织中的第二相的类型及形成原因进行了分析.结果表明:经过400℃,15h(炉冷)的均匀化退火处理以后,合金铸态组织中原本存在的(<span style=\"color:red\">Mg</span>,Al)17<span style=\"color:red\">Sr2</span>相中固溶的Al元素所占原子分数有所降低.此外,<span style=\"color:red\">Sr</span>含量为2.2％(质量分数)的合金组织中可以观察到大量沿(<span style=\"color:red\">Mg</span>,Al)17<span style=\"color:red\">Sr2</span>相边缘分布的颗粒状Al4<span style=\"color:red\">Sr</span>相,而<span style=\"color:red\">Sr</span>含量为<span style=\"color:red\">5</span>％的合金中基本观察不到(<span style=\"color:red\">Mg</span>,Al)17<span style=\"color:red\">Sr2</span>相的变化.","authors":[{"authorName":"吴菊英","id":"6a96263c-103b-4b5f-baf6-aae078c5bc43","originalAuthorName":"吴菊英"},{"authorName":"吴璐","id":"f1439849-df7f-4f35-bc78-7c21e3241bf4","originalAuthorName":"吴璐"},{"authorName":"潘复生","id":"2a5ba6df-61e5-41d7-acf7-911cf921067a","originalAuthorName":"潘复生"},{"authorName":"杨明波","id":"a9fa222c-94a6-4e3f-afac-a25d364cb855","originalAuthorName":"杨明波"},{"authorName":"汤爱涛","id":"c46310a8-962e-4cac-8d4a-3e54ee0f9d53","originalAuthorName":"汤爱涛"},{"authorName":"唐华","id":"1c7f4e2c-c03a-4bdd-a86f-9062776ddfa8","originalAuthorName":"唐华"}],"doi":"","fpage":"1638","id":"7c8e3b7d-5068-4400-b4a5-a15b6b1dd706","issue":"7","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":"6ef16615-608c-4339-a30f-875df31e35c2","keyword":"镁合金","originalKeyword":"镁合金"},{"id":"2eb27885-def0-489d-a8f9-aab531cc5f47","keyword":"<span style=\"color:red\">Sr</span>","originalKeyword":"Sr"},{"id":"f6533633-678d-4f1f-9820-88ecb574d8bc","keyword":"均匀化","originalKeyword":"均匀化"},{"id":"73beb688-b888-4fe9-96d1-f6adf3a073bc","keyword":"(<span style=\"color:red\">Mg</span>,Al)17<span style=\"color:red\">Sr2</span>相","originalKeyword":"(Mg,Al)17Sr2相"},{"id":"9d6a7e43-daea-422b-bad0-06790480cd70","keyword":"第二相","originalKeyword":"第二相"}],"language":"zh","publisherId":"xyjsclygc201407021","title":"均匀化退火对<span style=\"color:red\">Mg-3Al-1</span>Zn-2.2/<span style=\"color:red\">5Sr</span>镁合金中第二相的影响","volume":"43","year":"2014"},{"abstractinfo":"通过光学显微镜、扫描电镜和X射线衍射仪研究了<span style=\"color:red\">Mg</span> - <span style=\"color:red\">5</span>Sn - <span style=\"color:red\">5</span>Zn - xSr(x=0,0.5,<span style=\"color:red\">1,2</span>)4种铸造镁合金的显微组织和相组成.结果表明:在<span style=\"color:red\">Mg</span> -<span style=\"color:red\">5</span>Sn -<span style=\"color:red\">5</span>Zn合金中加入质量分数为0.5％ ～<span style=\"color:red\">2</span>％的<span style=\"color:red\">Sr</span>元素后,不但能够缩小α - <span style=\"color:red\">Mg</span>枝晶间距,而且还能形成三元相MgSnSr.随着<span style=\"color:red\">Sr</span>含量的增加,在晶界析出的<span style=\"color:red\">Mg2</span>Sn相减少,晶内的MgSnSr相增加.合金中的MgZn相与<span style=\"color:red\">Mg2</span>Sn相依附在一起,大多数的MvgZn相以α-<span style=\"color:red\">Mg</span>+ MgZn相的共晶方式存在.","authors":[{"authorName":"邱克强","id":"844ca134-b47e-4dd7-a5bc-0a64f9fb7b97","originalAuthorName":"邱克强"},{"authorName":"刘彬","id":"87cf194e-8054-4919-a94d-502b62897d6d","originalAuthorName":"刘彬"},{"authorName":"尤俊华","id":"9da721b4-93a9-4a73-a6af-1655176b5d88","originalAuthorName":"尤俊华"},{"authorName":"任英磊","id":"a1898855-67d6-4541-b11d-95444efb0da7","originalAuthorName":"任英磊"}],"doi":"10.3969/j.issn.1671-6620.2012.01.013","fpage":"54","id":"b7824521-9e22-437e-b31a-c9356de3cf79","issue":"1","journal":{"abbrevTitle":"CLYYJXB","coverImgSrc":"journal/img/cover/CLYYJXB.jpg","id":"17","issnPpub":"1671-6620","publisherId":"CLYYJXB","title":"材料与冶金学报"},"keywords":[{"id":"267177d6-d6c1-4e32-91a6-fdcb76674c12","keyword":"<span style=\"color:red\">Mg</span>合金","originalKeyword":"Mg合金"},{"id":"963e84ac-d83c-41d7-bdc2-26d9a190d70f","keyword":"显微组织","originalKeyword":"显微组织"},{"id":"668a700a-b96d-48e4-9c3b-809160a9a9fd","keyword":"<span style=\"color:red\">Sr</span>含量","originalKeyword":"Sr含量"},{"id":"f7895008-911b-470c-afcf-a6b32b8fac5d","keyword":"MgSnSr相","originalKeyword":"MgSnSr相"}],"language":"zh","publisherId":"clyyjxb201201013","title":"<span style=\"color:red\">Sr</span>对<span style=\"color:red\">Mg-5Sn-5</span>Zn铸造镁合金组织的影响","volume":"11","year":"2012"},{"abstractinfo":"为了确定挤压态<span style=\"color:red\">Mg-5Sn-2Si-2Sr</span>合金合适的热处理方案,分别采用硬度计、X射线衍射仪、力学性能试验机、光学显微镜,研究了该合金经T4(固溶处理)、T<span style=\"color:red\">5</span>(200℃×12h时效)和T6(固溶+时效)热处理后显微组织及力学性能的变化.结果表明:挤压态<span style=\"color:red\">Mg-5Sn-2Si-2Sr</span>合金宜采用T<span style=\"color:red\">5</span>热处理工艺.经T<span style=\"color:red\">5</span>热处理后,在晶界处析出大量<span style=\"color:red\">Mg2</span>Si强化相,使合金的屈服强度、抗拉强度分别达210.9 MPa、257.0 MPa,高于挤压态、T4和T6热处理工艺下的合金强度.T4热处理时,固溶强化作用远小于退火软化作用,致使合金力学性能的下降.T6热处理时,析出相及晶粒尺寸的长大使得合金力学性能的提高受到了限制.","authors":[{"authorName":"邱克强","id":"19d370f8-a6e5-4d98-a149-0e6eb0e41fda","originalAuthorName":"邱克强"},{"authorName":"郭强","id":"f4793b4d-2776-4c92-9bbc-9af31bd10291","originalAuthorName":"郭强"},{"authorName":"热焱","id":"5c9fb80a-e0a8-443e-a72f-0808b8dacec2","originalAuthorName":"热焱"},{"authorName":"尤俊华","id":"67cc9682-cc3a-4a47-a79a-bfa6fc2162f1","originalAuthorName":"尤俊华"},{"authorName":"任英磊","id":"ce84a39e-3162-4363-a3d0-a08494d45c7c","originalAuthorName":"任英磊"},{"authorName":"李荣德","id":"f189cb51-9045-49b1-a432-c97cb134bb2f","originalAuthorName":"李荣德"}],"doi":"","fpage":"78","id":"d78d51be-7f65-4e2f-8adb-1629cc8cf060","issue":"10","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":"f208c184-49ce-44d2-bad3-2cf636bd24b0","keyword":"<span style=\"color:red\">Mg-5Sn-2Si-2Sr</span>合金","originalKeyword":"Mg-5Sn-2Si-2Sr合金"},{"id":"9db3115d-d9e9-4109-bfde-36b3158fd86d","keyword":"热挤压","originalKeyword":"热挤压"},{"id":"ac31eade-6218-488f-b8ef-81c0f589e7c5","keyword":"固溶处理","originalKeyword":"固溶处理"},{"id":"5216ea44-803e-4036-ac1f-d2bde83bfd35","keyword":"时效","originalKeyword":"时效"},{"id":"9ae98cb5-db3f-4b79-97c9-e27df2dfb6a8","keyword":"显微组织","originalKeyword":"显微组织"},{"id":"7766b7e1-b4cb-42be-9ff3-869aa6c89520","keyword":"力学性能","originalKeyword":"力学性能"}],"language":"zh","publisherId":"jsrclxb201310015","title":"热处理对挤压态<span style=\"color:red\">Mg-5Sn-2Si-2Sr</span>合金组织及性能的影响","volume":"34","year":"2013"},{"abstractinfo":"本文主要介绍用溶胶-凝胶法制备的Ba离子掺杂的双层钙钛矿锰基氧化物La4/3(<span style=\"color:red\">Sr1</span>-xBax)<span style=\"color:red\">5</span>/3Mn<span style=\"color:red\">2</span>O7(0<x<<span style=\"color:red\">1</span>)在液氮温区的电输运性质.在Ba离子掺杂x≤0.2时,金属-绝缘体的转变温度(Tp)随着掺杂量的增加向低温移动,低温电阻增加;当x≥0.2时,随掺杂量的增加Tp反而逐渐升高而低温电阻减小.对于不同烧结温度的样品,在x<0.4范围内,低温电阻值随烧结温度增加而增加;在x>0.4范围内,低温电阻值随烧结温度增加而减小.出现这种反常行为的结果可能是由于随着<span style=\"color:red\">Sr</span>逐步被Ba离子取代而引起的失配效应造成结构相分离所致.","authors":[{"authorName":"张力江","id":"15c853a4-4480-4ec6-ad31-663b4081275c","originalAuthorName":"张力江"},{"authorName":"刘莉","id":"b2e374de-845a-48bd-8d27-dad553650158","originalAuthorName":"刘莉"},{"authorName":"夏正才","id":"766dfd02-801d-4c40-9f3e-9ba1ff907f2e","originalAuthorName":"夏正才"},{"authorName":"张国宏","id":"4738b9e2-1cea-4f9a-9144-e18a865e606b","originalAuthorName":"张国宏"},{"authorName":"冯文","id":"a111b706-6cdd-4277-9ba8-8ccf27d07a00","originalAuthorName":"冯文"},{"authorName":"唐洁","id":"777a134b-a3f6-4917-8ebc-9d1695aa49a9","originalAuthorName":"唐洁"},{"authorName":"刘胜","id":"d8bfcd6a-c038-4bf3-953b-ce534144cfa9","originalAuthorName":"刘胜"},{"authorName":"袁松柳","id":"0f8a97b9-bfa1-4518-b175-3617e8f4ef78","originalAuthorName":"袁松柳"}],"doi":"10.3969/j.issn.1000-3258.2004.04.006","fpage":"304","id":"3fc13c54-d99d-4b2f-bd3a-4bc77e04cd90","issue":"4","journal":{"abbrevTitle":"DWWLXB","coverImgSrc":"journal/img/cover/DWWLXB.jpg","id":"19","issnPpub":"1000-3258","publisherId":"DWWLXB","title":"低温物理学报   "},"keywords":[{"id":"7bdeca54-2302-48c8-8e1a-390133cabab9","keyword":"双层钙钛矿锰基氧化物","originalKeyword":"双层钙钛矿锰基氧化物"},{"id":"146fa8ee-00cb-42c4-9120-e573a4187f4c","keyword":"金属-绝缘体转变","originalKeyword":"金属-绝缘体转变"},{"id":"00e5d6ec-0191-456f-9e0a-26cdc65dc30c","keyword":"磁电阻","originalKeyword":"磁电阻"},{"id":"f9127b9a-b517-4cd0-ba35-c28d54863f3a","keyword":"结构相变","originalKeyword":"结构相变"}],"language":"zh","publisherId":"dwwlxb200404006","title":"La4/3(<span style=\"color:red\">Sr1</span>-xBax)<span style=\"color:red\">5</span>/3Mn<span style=\"color:red\">2</span>O7的电输运性质研究","volume":"26","year":"2004"},{"abstractinfo":"采用固相烧结反应法制备(<span style=\"color:red\">Mg</span><sub><span style=\"color:red\">1</span>-<em>x</em></sub><span style=\"color:red\">Sr</span><sub><em>x</em></sub>)<sub><span style=\"color:red\">2</span></sub>Al<sub>4</sub>Si<sub><span style=\"color:red\">5</span></sub>O<sub>18</sub>陶瓷. <span style=\"color:red\">Sr</span>掺杂促进低温相&beta;-<span style=\"color:red\">Mg2Al4Si5</span>O18向高温相&alpha;-<span style=\"color:red\">Mg</span><sub><span style=\"color:red\">2</span></sub>Al<sub>4</sub>Si<sub><span style=\"color:red\">5</span></sub>O<sub>18</sub>转变, 并拓宽了(<span style=\"color:red\">Mg</span><sub><span style=\"color:red\">1</span>-<em>x</em></sub><span style=\"color:red\">Sr</span><sub><em>x</em></sub>)<sub><span style=\"color:red\">2</span></sub>Al<sub>4</sub>Si<sub><span style=\"color:red\">5</span></sub>O<sub>18</sub>陶瓷的致密化烧结温度范围. X射线衍射结果表明在0&le;<em>x</em>＜0.2范围内, (<span style=\"color:red\">Mg</span><sub><span style=\"color:red\">1</span>-<em>x</em></sub><span style=\"color:red\">Sr</span><sub><em>x</em></sub>)<sub><span style=\"color:red\">2</span></sub>Al<sub>4</sub>Si<sub><span style=\"color:red\">5</span></sub>O<sub>18</sub>陶瓷以(<span style=\"color:red\">Mg</span>,<span style=\"color:red\">Sr</span>)<sub><span style=\"color:red\">2</span></sub>Al<sub>4</sub>Si<sub><span style=\"color:red\">5</span></sub>O<sub>18</sub>堇青石固溶体形式存在; 在0.6＜<em>x</em>&le;1.0范围内, 以(<span style=\"color:red\">Sr</span>, <span style=\"color:red\">Mg</span>)Al<sub><span style=\"color:red\">2</span></sub>Si<sub><span style=\"color:red\">2</span></sub>O<sub>8</sub>固溶体存在. 用扫描电子显微镜观察表明<span style=\"color:red\">Sr</span>掺杂可以有效地降低<span style=\"color:red\">Mg</span><sub><span style=\"color:red\">2</span></sub>Al<sub>4</sub>Si<sub><span style=\"color:red\">5</span></sub>O<sub>18</sub>陶瓷的气孔率与微裂纹, 促进SrAl<sub><span style=\"color:red\">2</span></sub>Si<sub><span style=\"color:red\">2</span></sub>O<sub>8</sub>锶长石晶粒生长与均匀分布. 在0&le;<em>x</em>&le;0.4范围内, (<span style=\"color:red\">Mg</span><sub><span style=\"color:red\">1</span>-<em>x</em></sub><span style=\"color:red\">Sr</span><em><sub>x</sub></em>)<sub><span style=\"color:red\">2</span></sub>Al<sub>4</sub>Si<sub><span style=\"color:red\">5</span></sub>O<sub>18</sub>陶瓷介电常数基本保持在7.0左右. 在0.6&le;<em>x</em>&le;1.0范围内从7.0增加到8.5. <em>Q</em><sub>f</sub>值在0&le;<em>x</em>&le;0.2范围内从24100 GHz显著地提高到&nbsp;&nbsp; 38900 GHz, 然后逐渐降低至SrAl<sub><span style=\"color:red\">2</span></sub>Si<sub><span style=\"color:red\">2</span></sub>O<sub>8</sub>的14500 GHz.","authors":[{"authorName":"宋开新","id":"7df0f155-b075-47f4-89ce-357310671270","originalAuthorName":"宋开新"},{"authorName":"杨岳强","id":"a07e7795-1971-4c13-b867-d189d9ed8d97","originalAuthorName":"杨岳强"},{"authorName":"郑鹏","id":"caa28707-ffbe-4bcc-ac0d-b8030bf2d8ed","originalAuthorName":"郑鹏"},{"authorName":"徐军明","id":"f2bd81ac-5592-48b3-8e27-f9bbefb76d77","originalAuthorName":"徐军明"},{"authorName":"秦会斌","id":"5e530643-7bc1-4122-8de6-4b20f2980598","originalAuthorName":"秦会斌"}],"categoryName":"|","doi":"10.3724/SP.J.1077.2012.00575","fpage":"575","id":"3829372e-cbbd-4a74-a659-a49f335f52e1","issue":"6","journal":{"abbrevTitle":"WJCLXB","coverImgSrc":"journal/img/cover/WJCLXB.jpg","id":"62","issnPpub":"1000-324X","publisherId":"WJCLXB","title":"无机材料学报"},"keywords":[{"id":"7ae9b00d-2f5c-44fd-8a3f-5073b0e99b02","keyword":"<span style=\"color:red\">Mg</span><sub><span style=\"color:red\">2</span></sub>Al<sub>4</sub>Si<sub><span style=\"color:red\">5</span></sub>O<sub>18</sub>; SrAl<sub><span style=\"color:red\">2</span></sub>Si<sub><span style=\"color:red\">2</span></sub>O<sub>8</sub>; 微波性能","originalKeyword":"Mg<sub>2</sub>Al<sub>4</sub>Si<sub>5</sub>O<sub>18</sub>; SrAl<sub>2</sub>Si<sub>2</sub>O<sub>8</sub>; 微波性能"}],"language":"zh","publisherId":"1000-324X_2012_6_14","title":"(<span style=\"color:red\">Mg</span><sub><span style=\"color:red\">1</span>-<em>x</em></sub><span style=\"color:red\">Sr</span><em><sub>x</sub></em>)<sub><span style=\"color:red\">2</span></sub>Al<sub>4</sub>Si<sub><span style=\"color:red\">5</span></sub>O<sub>18</sub>陶瓷的显微结构与微波介电性能研究","volume":"27","year":"2012"}],"totalpage":10893,"totalrecord":108929}