{"currentpage":1,"firstResult":0,"maxresult":10,"pagecode":5,"pageindex":{"endPagecode":5,"startPagecode":1},"records":[{"abstractinfo":"以二茂铁和二茂镍为催化剂,采用化学气相沉积法在1000℃下,炭黑( CB )转变为炭纳米微球和碳管。利用XRD, SEM, TEM, HR_TEM 和 Raman等对样品进行表征。结果表明,二茂铁和二茂镍质量比不同,可得到形貌不同的纳米炭的结构。与单金属催化剂相比,采用双金属催化剂合成的纳米炭结构具有高结晶度。催化剂颗粒填充在碳管内部或包裹在碳管外部,主要取决于催化剂与炭黑的质量比。当炭黑:二茂铁:二茂镍为1:2:2时,得到结晶度高的催化剂包裹多壁纳米炭微球结构。","authors":[{"authorName":"Vijayshankar Asokan","id":"8e6a3992-c60a-4329-9a4f-7d25dc7d93ba","originalAuthorName":"Vijayshankar Asokan"},{"authorName":"Dorte Nφrgaard Madsen","id":"f08343ce-f279-448d-8ee0-5878bc680dfd","originalAuthorName":"Dorte Nφrgaard Madsen"},{"authorName":"Pawel Kosinski","id":"2c7d30a3-8876-4305-8ace-1fde90f35f13","originalAuthorName":"Pawel Kosinski"},{"authorName":"Velaug Myrseth","id":"c976e9bc-fe4f-405a-bde5-bba0ceb6cec8","originalAuthorName":"Velaug Myrseth"}],"doi":"10.1016/S1872_5805(15)60172_X","fpage":"19","id":"eb529b4e-04de-4013-b694-9d984dae1c34","issue":"1","journal":{"abbrevTitle":"XXTCL","coverImgSrc":"journal/img/cover/XXTCL.jpg","id":"70","issnPpub":"1007-8827","publisherId":"XXTCL","title":"新型炭材料"},"keywords":[{"id":"2d2de291-bb34-4ebf-b9bf-9f61221ee911","keyword":"炭黑","originalKeyword":"炭黑"},{"id":"eb177799-1e89-421d-b6f7-5ee0ead2dadb","keyword":"炭微球","originalKeyword":"炭微球"},{"id":"b4285d8d-9733-44a5-a691-d737bd5642ea","keyword":"碳管","originalKeyword":"碳管"},{"id":"d27cfd36-c408-495a-b398-bc3f0e5ace19","keyword":"催化转变","originalKeyword":"催化转变"},{"id":"fe8def6f-6668-441d-b331-3614fe56412a","keyword":"气相沉积","originalKeyword":"气相沉积"}],"language":"zh","publisherId":"xxtcl201501003","title":"催化剂对炭黑转变为纳米炭微球和碳管的影响","volume":"","year":"2015"},{"abstractinfo":"以对羟基苯甲醛的钠盐为亲核取代试剂,采用相转移催化进行了大分子氯甲基聚苯乙烯的亲核取代反应,将其转变为侧链带有功能性基团醛基的聚苯乙烯; 考察了反应条件(如有机溶剂的极性、催化剂种类及用量、有机相与水相之比等)对大分子相转移催化反应的影响,并根据相转移催化反应机理与相关的动力学规律进行了分析. 结果表明,通过相转移催化亲核取代反应,可将氯甲基聚苯乙烯大分子链上的氯原子转化,制得侧链带有醛基的聚苯乙烯; 溶剂的极性越强,负离子的反应活性也越高; 催化剂季铵正离子的亲脂性越强,相转移催化反应的速率越快. 当催化剂浓度较低时,四丁基溴化铵比十六烷基溴化铵的催化效果好; 当催化剂浓度较高时,十六烷基溴化铵比四丁基溴化铵的催化效果好. 另外,有机相与水相之比对相转移催化反应有较大的影响.","authors":[{"authorName":"朱勇","id":"4c1eb8af-9614-458e-bc66-8855503f6a44","originalAuthorName":"朱勇"},{"authorName":"高保娇","id":"f8568897-ce00-4e2e-920c-49ea4c9631a8","originalAuthorName":"高保娇"},{"authorName":"左海丽","id":"ca383c9a-0eb4-426a-9497-403545dc21c0","originalAuthorName":"左海丽"}],"doi":"","fpage":"451","id":"ff5a4dfa-cb6e-42e2-a5f1-a32db1b235f9","issue":"5","journal":{"abbrevTitle":"CHXB","coverImgSrc":"journal/img/cover/CHXB.jpg","id":"18","issnPpub":"0253-9837","publisherId":"CHXB","title":"催化学报 "},"keywords":[{"id":"39612072-7c97-4436-995f-d945435d7c91","keyword":"相转移催化","originalKeyword":"相转移催化"},{"id":"a3514182-a790-4ef4-b7a7-79bea32bee8a","keyword":"氯甲基聚苯乙烯","originalKeyword":"氯甲基聚苯乙烯"},{"id":"cdc8453f-43cf-40c5-9666-7a5e3b8c3379","keyword":"亲核取代","originalKeyword":"亲核取代"},{"id":"4bce9545-0548-42ba-b618-9cd85b028a7e","keyword":"羟基苯甲醛","originalKeyword":"羟基苯甲醛"},{"id":"17821849-79e1-4232-aa01-e1f865f010df","keyword":"功能化","originalKeyword":"功能化"}],"language":"zh","publisherId":"cuihuaxb200705015","title":"相转移催化法实现聚苯乙烯的功能化转变","volume":"28","year":"2007"},{"abstractinfo":"采用共沉淀法制备Cu/ZnO合成甲醇催化剂,重点考察了Cu/Zn母料老化期间pH值的变化情况,并结合X射线衍射(XRD)、红外光谱、微分热重分析、程序升温脱附和扫描电镜等表征于段研究了不同老化时间前驱体物相的变化.结果表明,老化前,前驱体主要以无定形碱式碳酸盐的形式存在;老化过程中,物相由无定形向晶体转变,铜锌开始掺入相应的碱式碳酸盐,此时母液pH值下降,溶液由蓝色变成蓝绿色.随着老化时间的增加,铜锌掺入量增加,晶粒逐渐长大,最终形成大量能生成高活件催化剂的前驱体物相(Cu,Zn)2(CO3)(OH)2和(Cu,Zn)5(CO3)2(OH)6.XRD结果表明,老化时间对催化剂的CuO晶粒大小影响很大.","authors":[{"authorName":"夏王琼","id":"21f22e31-508d-4ef1-8442-f04b3b9c67c2","originalAuthorName":"夏王琼"},{"authorName":"唐浩东","id":"c0eff551-aff9-45ba-bf3f-4210a4b674b3","originalAuthorName":"唐浩东"},{"authorName":"林胜达","id":"2f6a756b-612b-4113-bc3d-1dfbf5ecb194","originalAuthorName":"林胜达"},{"authorName":"岑亚青","id":"2693238b-42e3-41b0-9d8b-c5245bd8c729","originalAuthorName":"岑亚青"},{"authorName":"刘化章","id":"bf319a80-8aff-4eba-8ab9-58bdea246ed1","originalAuthorName":"刘化章"}],"doi":"","fpage":"879","id":"597f775e-ede6-41de-80dc-8c66e3acd019","issue":"9","journal":{"abbrevTitle":"CHXB","coverImgSrc":"journal/img/cover/CHXB.jpg","id":"18","issnPpub":"0253-9837","publisherId":"CHXB","title":"催化学报 "},"keywords":[{"id":"6f3a35d5-aac2-4051-b5eb-2b7316f08f5a","keyword":"甲醇","originalKeyword":"甲醇"},{"id":"8fbadf0b-866a-46d8-9168-448f09a150ed","keyword":"铜","originalKeyword":"铜"},{"id":"7f3ef273-9a46-45fb-88dd-3da842bf96ea","keyword":"氧化锌","originalKeyword":"氧化锌"},{"id":"341ff9b4-a325-4d77-bbe4-72257885e10a","keyword":"共沉淀","originalKeyword":"共沉淀"},{"id":"ffe3817e-96e9-4736-8405-bccbb9bb05d7","keyword":"老化","originalKeyword":"老化"},{"id":"155ac028-8821-41d2-a703-e11ea66d6c13","keyword":"前驱体","originalKeyword":"前驱体"},{"id":"36f2b99e-2752-4361-b54b-3a1d56d1cc18","keyword":"晶相转变","originalKeyword":"晶相转变"}],"language":"zh","publisherId":"cuihuaxb200909006","title":"甲醇合成Cu/Zno催化剂前驱体的物相转变","volume":"30","year":"2009"},{"abstractinfo":"采用溶胶-凝胶法制得稳定的TiO2透明溶胶,凝胶经焙烧制备了纳米TiO2粉体,利用FT-IR、XRD和原子力显微镜(AFM)技术对其进行了结构和形貌表征,考察了其对水杨酸的光催化活性.研究结果表明,醇胺不同的加入量,对TiO2从锐钛矿转变为金红石型的晶相转变温度(600~800℃)有很大影响,FT-IR谱的423cm-1处吸收峰为金红石型TiO2的特征Ti-O键振动峰,采用310nm的紫外光波长照射时锐钛矿型TiO2粉体具有较高的光催化活性.","authors":[{"authorName":"孙丽萍","id":"997be37c-7468-4010-a4da-0b68aecafd1d","originalAuthorName":"孙丽萍"},{"authorName":"高山","id":"96c8abfc-df9f-4811-92cd-4b5a3586ebbb","originalAuthorName":"高山"},{"authorName":"赵辉","id":"6a5b7414-92f8-432b-b922-f31a2912a81d","originalAuthorName":"赵辉"},{"authorName":"霍丽华","id":"209ca7ce-574c-4455-b00b-efc5f448db32","originalAuthorName":"霍丽华"},{"authorName":"赵经贵","id":"33d56708-be15-4563-bf12-0b9f15e68624","originalAuthorName":"赵经贵"}],"doi":"","fpage":"632","id":"8378d88a-cceb-456e-b67a-353578f9304a","issue":"5","journal":{"abbrevTitle":"GNCL","coverImgSrc":"journal/img/cover/GNCL.jpg","id":"33","issnPpub":"1001-9731","publisherId":"GNCL","title":"功能材料"},"keywords":[{"id":"ca436cb7-ab45-4c4e-8d26-acf508959511","keyword":"纳米二氧化钛","originalKeyword":"纳米二氧化钛"},{"id":"4ce4b404-1f79-45c3-9306-156d3f4a46bd","keyword":"晶型转变","originalKeyword":"晶型转变"},{"id":"ca100328-7fd5-40aa-9e7b-4636e2365612","keyword":"光催化","originalKeyword":"光催化"}],"language":"zh","publisherId":"gncl200405035","title":"纳米二氧化钛的晶型转变及光催化性能研究","volume":"35","year":"2004"},{"abstractinfo":"1966年Aaronson根据热力学计算结果对钢的贝氏体转变的切变理论提出了异议,由此引发了一场世界范围的超过半个多世纪的对钢的贝氏体转变机制的研究和讨论高潮,有些问题已经得到共识,但有些问题依然存在分歧.在此期间,对马氏体转变及珠光体转变也有一些新的建树.现特以纯铁及碳钢为例,对珠光体、贝氏体、马氏体3个转变机制的现状进行了概括,其中包括了本文作者的一些分析和判断.衷心希望读者对本文提出批评指正.","authors":[{"authorName":"戚正风","id":"5f193030-b1cd-4701-83a7-7ad8c8aedade","originalAuthorName":"戚正风"}],"doi":"","fpage":"1","id":"3da7b188-7cea-4d7f-9175-8a7ce9f27985","issue":"4","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":"a9933ff6-5912-4115-976a-162f5ad18d4c","keyword":"珠光体转变","originalKeyword":"珠光体转变"},{"id":"3ec6e198-c1c8-4b41-8ac2-ccd01863dac3","keyword":"贝氏体转变","originalKeyword":"贝氏体转变"},{"id":"4928ba08-205c-4ebe-9d77-2eb3e3c0abaa","keyword":"马氏体转变","originalKeyword":"马氏体转变"}],"language":"zh","publisherId":"jsrclxb201704001","title":"碳钢过冷奥氏体的转变","volume":"38","year":"2017"},{"abstractinfo":"依据前人的实验数据,运用传统计算方法,对纯铁γ-α转变扩散机制进行了检验,结果表明:完成转变需用时间的理论计算值与实验值有3~4个数量级的差异.根据非切变相变大多存在非共格相界的特点,由相界原子参与相变的设想提出了存在非共格相界的非切变相变\"相界与母相原子联动位移\"机制.运用热力学基本原理对\"联动\"和新相连续长大的条件进行了简要分析.对固态相变的分类提出了质疑并建议把\"扩散型相变\"限定为新相与母相化学成分不同的相变.","authors":[{"authorName":"侯增寿","id":"76904a3a-8f82-4877-a46c-bc41b7205b26","originalAuthorName":"侯增寿"},{"authorName":"赵兴国","id":"d6eaaee1-25a5-4b6f-ac42-59160de43969","originalAuthorName":"赵兴国"},{"authorName":"侯文义","id":"a37f0cc2-9458-4653-bac6-d4898744c997","originalAuthorName":"侯文义"},{"authorName":"梁伟","id":"964f2a94-9ab2-4533-bd71-d320ca60f3fe","originalAuthorName":"梁伟"}],"doi":"10.3969/j.issn.1009-6264.2001.04.001","fpage":"1","id":"9e3cfd61-b65a-45b6-b095-85b669808081","issue":"4","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":"dee7d1b2-a967-4549-84e1-5fa6d653de92","keyword":"固态相变","originalKeyword":"固态相变"},{"id":"7a5bf5ae-c526-4c24-aa24-f8fdbd8dfe3a","keyword":"相变机制","originalKeyword":"相变机制"}],"language":"zh","publisherId":"jsrclxb200104001","title":"纯铁γ-α转变机制求索","volume":"22","year":"2001"},{"abstractinfo":"采用透明模型丁二腈—1.1%乙醇合金,从界面形态发展的时间相关性的角度,对平-胞转变和胞-枝转变进行了实验研究。实验结果表明,忽视界面形态发展的时间相关性,会导致过高估计平-胞转变速度和胞-枝转变速度。提出了一种确定平-胞转变条件的渐进线方法。确定了胞-枝转变速度随温度梯度变化的规律。","authors":[{"authorName":"黄卫东","id":"dbd32cb0-74fd-4156-9519-ac11cadb25ff","originalAuthorName":"黄卫东"},{"authorName":"周尧和","id":"fd7b90db-17e4-4678-974d-13e23c7aa64f","originalAuthorName":"周尧和"}],"categoryName":"|","doi":"","fpage":"8","id":"e269653b-405d-4e82-8ee1-d8cfe6273c17","issue":"2","journal":{"abbrevTitle":"JSXB","coverImgSrc":"journal/img/cover/JSXB.jpg","id":"48","issnPpub":"0412-1961","publisherId":"JSXB","title":"金属学报"},"keywords":[{"id":"fa7de116-6b6a-43c8-8427-3dfa0ddab941","keyword":"凝固","originalKeyword":"凝固"},{"id":"fc96687e-f1fc-4f28-9b5b-352a55acd653","keyword":"interface morphology","originalKeyword":"interface morphology"},{"id":"b0ffcb95-ca96-43c4-8ece-105531e7f0a2","keyword":"succinonitrile-ethanol model alloy","originalKeyword":"succinonitrile-ethanol model alloy"}],"language":"zh","publisherId":"0412-1961_1991_2_25","title":"定向凝固的界面形态转变","volume":"27","year":"1991"},{"abstractinfo":"用自制高压装置使聚丙烯(PP)在0.77 GPa、250 ℃下融体结晶,经WAXD分析所得结晶试样为γ晶型PP.并用高温WAXD和DSC研究了γ-PP在热作用下向α-PP转变的过程及机理.γ-PP在远低于其熔点的温度下发生向α-PP转变,而不是γ-PP先熔融,再重新结晶成α-PP,即这是一种固~固转变,且这种γ-α转变受升温速率的影响很大,γ-α晶型转变只发生在较低的升温速率,在高的升温速率下,不发生γ-α晶型转变.","authors":[{"authorName":"傅强","id":"86fb4692-bf19-45a2-bdbd-6f0b8c4a9094","originalAuthorName":"傅强"},{"authorName":"黄锐","id":"61c261a3-5305-42c3-849f-a73304281070","originalAuthorName":"黄锐"}],"doi":"","fpage":"69","id":"f57020b1-5651-4ed1-9636-0f79aa578992","issue":"4","journal":{"abbrevTitle":"GFZCLKXYGC","coverImgSrc":"journal/img/cover/GFZCLKXYGC.jpg","id":"31","issnPpub":"1000-7555","publisherId":"GFZCLKXYGC","title":"高分子材料科学与工程"},"keywords":[{"id":"7ab84805-dda7-49bd-8131-14130b36a4fb","keyword":"γ-PP","originalKeyword":"γ-PP"},{"id":"c453d0de-a202-4628-b86c-674c80d62c5f","keyword":"固~固转变","originalKeyword":"固~固转变"},{"id":"76c84f74-9b58-422e-9711-7e2f94dd69ca","keyword":"α-PP","originalKeyword":"α-PP"}],"language":"zh","publisherId":"gfzclkxygc199904020","title":"γ晶型聚丙烯及其转变","volume":"15","year":"1999"},{"abstractinfo":"应变玻璃转变是在形状记忆合金中发现的一种玻璃化转变过程,这种玻璃化转变过程有着不同于正常马氏体转变的一些特性。通过引入缺陷进而改变形状记忆合金的平均马氏体相的热稳定性和缺陷产生的局部畸变场这两种缺陷的效应,作者课题组建立了新的朗道势能—缺陷模型。通过相场动力学的模拟,成功地预测了实验发现的应变玻璃转变现象及相关的奇异性质。另外,通过相场模拟结果建立了与实验一致的、完整的模拟相变相图,成功地描述了形状记忆合金中除了正常奥氏体态和马氏体态之外的奇异应变态,理论模拟为理解这些应变态及其之间的相关性提供了基础。通过耦合应变玻璃模型和外加力场,模拟了应变玻璃转变的奇异力学特性;其中包括窄的应力应变迟滞回线,应变玻璃成分的应力-温度相变相图,以及在不同的加载情况下,体系在升降温过程中的热滞后性能。本研究工作为进一步通过模拟来指导和设计新型可应用的应变玻璃态材料打下了基础。","authors":[{"authorName":"王栋","id":"2a03cf42-2247-4ad1-aff2-16d2740a13b6","originalAuthorName":"王栋"},{"authorName":"任晓兵","id":"f1668c17-fedb-4d0f-931b-1a5245a0a740","originalAuthorName":"任晓兵"},{"authorName":"王云志","id":"2f84dfbc-2580-4fdf-a6f1-30436f61434c","originalAuthorName":"王云志"}],"doi":"10.7502/j.issn.1674-3962.2016.06.02","fpage":"409","id":"f911c09a-5fbb-4255-9826-a20c8f57ee02","issue":"6","journal":{"abbrevTitle":"ZGCLJZ","coverImgSrc":"journal/img/cover/中国材料进展.jpg","id":"80","issnPpub":"1674-3962","publisherId":"ZGCLJZ","title":"中国材料进展"},"keywords":[{"id":"f907e466-5570-4541-8b34-c013e718b48f","keyword":"马氏体相变","originalKeyword":"马氏体相变"},{"id":"4b38f520-00fd-485a-b125-2b8adae7c0fc","keyword":"应变玻璃转变","originalKeyword":"应变玻璃转变"},{"id":"3f43a410-d1ba-4145-a725-82b8ffb6e058","keyword":"相场动力学","originalKeyword":"相场动力学"},{"id":"45a255a0-fe3b-44d2-8486-e8b4f77ab1a4","keyword":"相变相图","originalKeyword":"相变相图"},{"id":"46e96742-3e06-48ed-8022-516d0655a64e","keyword":"点缺陷","originalKeyword":"点缺陷"}],"language":"zh","publisherId":"zgcljz201606002","title":"应变玻璃转变的相场模拟","volume":"35","year":"2016"},{"abstractinfo":"对某些金属和类金属按一定比例在高温下熔融混合,并急速冷却,可以得到性能极为特殊的非晶态金属。我们根据高聚物转变理论,用研究高聚物的扭辫仪、线膨胀仪,再结合DSC和X射线衍射仪,对非晶态金属[Fe_(0.1)Ni_(0.35)Co_(0.55)]_(78)Si_8B_(14),[Fle_(0.1)Ni_(0.30)Co_(0.55)Mo_(0.05)]_(78)Si_8B_(14)和[Fe_(0.1)Ni_(0.30)Co_(0.55)Nb_(0.05)]_(78)Si_8B_(14)的玻璃化转变及晶化转变的自由体积、激活能、内耗与热效应等进行了研究,观测到玻璃化温度及晶化温度、玻璃化转变激活能及晶化激活能均与合金元素原子半径有关,转变时的热效应与内耗峰值有一定的对应关系。讨论了玻璃化转变及晶化转变的机理,可供设计非晶态金属时参考。","authors":[{"authorName":"余赋生","id":"740a23fd-1e6a-4c28-8659-465dc4a614d2","originalAuthorName":"余赋生"},{"authorName":"李建国","id":"d7dd5444-0721-4b63-ad1d-0bf6fbc00e76","originalAuthorName":"李建国"},{"authorName":"严言忠","id":"e6883e30-4a45-4d88-99f7-78fd8b0621c4","originalAuthorName":"严言忠"},{"authorName":"张延忠","id":"d1981fb9-8035-4a81-baab-0edad8f3bc48","originalAuthorName":"张延忠"}],"categoryName":"|","doi":"","fpage":"313","id":"271a1604-153b-4b94-8cd9-0731dcedb30b","issue":"4","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_1984_4_12","title":"借用研究高聚物转变的方法研究金属玻璃化转变","volume":"20","year":"1984"}],"totalpage":2233,"totalrecord":22330}