首页期刊信息编委及顾问期刊发行联系方式使用帮助常见问题ENGLISH
位置:首页 >> 正文
微波水热合成ZrO_2-8%Y_2O_3纳米粉体
作者:孙永欣 赵青 刘力 常爱民 文彬 杨忠波 陈志慧 
单位:中国科学院新疆理化技术研究所 中国科学院新疆理化技术研究所 中国科学院新疆理化技术研究所 中国科学院新疆理化技术研究所 中国科学院新疆理化技术研究所 中国科学院新疆理化技术研究所 中国科学院新疆理化技术研究所 乌鲁木齐830011 中国科学院研究生院 北京100039  乌鲁木齐830011  乌鲁木齐830011  乌鲁木齐830011  乌鲁木齐830011 兰州化学物理研究所 兰州730000  乌鲁木齐830011 中国科学院研究生院 北京100039  乌鲁木齐830011 
关键词:氧化钇稳定氧化锆  纳米  微波水热法 
分类号:TB383;
出版年,卷(期):页码:2005,33(10):0-0
DOI:
摘要:
以Zr(OH)4和Y(OH)3的共沉淀为前驱体,在碱性介质中用微波水热法合成摩尔分数为8%的氧化钇稳定氧化锆(yttria stabilized cu-bic zirconia,YSZ)纳米粉体。通过X射线粉末衍射仪、透射电镜和等离子发射光谱等表征粉体的性能。研究了微波水热法的反应温度、时间和前驱物浓度对反应产物形貌、粒度等的影响。获得了制备具有纳米立方相结构的YSZ粉体的最佳工艺参数:粉体粒度为5~10 nm,产物纯度为99%。结果表明:温度为200℃时,产物粒径较小且均匀。微波水热制备YSZ的最佳反应时间为20~40 min。前驱物中Zr4+的最佳浓度为0.2 mol/l。增大碱性介质KOH的浓度对产物的晶型和粒度影响不大。
how to catch a cheater online go
my wife cheated on me now what i dream my husband cheated on me husband cheat
open open My husband cheated on me
doxycycline doxycycline doxycycline
amoxicillin amoxicillin amoxicillin
sumatriptan side effects sumatriptan side effects sumatriptan side effects
Cubic phase ZrO_28%(in mole)Y_2O_3 nano-powders were prepared in basic media by the microwave-hydrothermal method,with Zr(OH)_4 and Y(OH)_3 co-precipitated from ZrO(NO_3)_2·2H_2O and Y(NO_3)_3·6H_2O solutions as the precursors.The resultant precipitates were characterized by X-ray diffraction,transmission electron microscopy and inductively coupled plasmaoptima emission spectrometry.Influents of solution content,temperature and time on the crystalline type and morphology of yttrium stabilized cubic zirconia were studied.Well-dispersed and narrowly distributed ZrO_28%Y_2O_3 nano-powders with particle sizes of 5—10 nm were obtained under the given process conditions.The best conditions for the microwavehydrothermal method are as follows: reaction time of 20—40 min,precursor content of 0.2 mol/l,temperature of 194—(200 ℃),and KOH content of 0.4 mol/l.The product purity is 99% in mass.
online want my wife to cheat married woman looking to cheat
online click open
my wife cheated on me now what men and women husband cheat
sumatriptan side effects sumatriptan side effects sumatriptan side effects
基金项目:
中国科学院新疆理化技术研究所创新项目;; “西部之光”资助项目
作者简介:
married cheaters why some women cheat click
why women cheat on husbands wife affair link
my wife cheated on me now what website husband cheat
amoxicillin amoxicillin amoxicillin
参考文献:
[1]金钦汉,戴树珊,黄卡玛.微波化学[M].北京:科学出版社,1999.146—147.JIN Qianhan,DAI Shushan,HUANG Kama.MicrowaveChemistry(in Chinese).Beijing:Science Press,1999.146—147. [2]BONDIOLI F,FERRARI A M,EONELLI C L,et al.Mi-crowave-hydrothermal synthesis of nanocrystalline zirconiapowders[J].J Am Ceram Soc,2001,84(11):2 728—2 730. [3]李汶军,施尔畏,仲维卓,等.水热合成中负离子配位多面体生长基元模型与粉体的晶粒粒度[J].硅酸盐学报,1999,27(2):164—171.LI Wenjun,SHI Erwei,ZHONG Weizhuo,et al.J Chin Ce-ram Soc(in Chinese),1999,27(2):164—171. [4]施尔畏,夏长泰,王步国,等.水热法的应用与发展[J].无机材料学报,1996,11(2):193—206.SHI Erwei,XIA Changtai,WANG Buguo.J Inorg Mater(inChinese),1996,11(2):193—206. [5]陶为华,马桂林,周丽,等.ZrO28%Y2O3纳米晶的碱性水热法合成及其烧结体的电性能研究[J].化学学报,2003,61(12):1 955—1 959.TAO Weihua,MA Guilin,ZHOU Li,et al.Acta ChimicaSinica(in Chinese),2003,61(12):1 955—1 959. [6]DELL'AGLI G,COLANTUONO A,MASCOLO G.Theeffect of mineralizes on the crystallization of zirconia gel un-der hydrothermal conditions[J].Solid State Ion,1999,123(1 4):87—94. [7]KHOLLAM Y B,DESHPANDE A S,PATIL A J,et al.Synthesis of yttria stabilized cubic zirconia(YSZ)powders bymicrowave-hydrothermal route[J].Mater Chem Phys,2001,71(3):235—241. [8]DELL'AGLI G,MASCOLO G.Zirconia yttria(8 mol%)powders hydrothermally synthesized from different Y-basedprecursors[J].J Eur Ceram Soc,2004,24(6):915—918. [9]PITICESCU R R,MONTY C,TALOI D,et al.Hydrother-mal synthesis of zirconia nanomaterials[J].J Eur Ceram Soc,2001,21(10):2 057—2 060. [10]吴其胜.尿素为沉淀剂水热制备稳定Y Ce ZrO2纳米粉体[J].盐城工学院学报(自然科学版),2004,17(1):1—4.WU Qisheng.J Yancheng Inst Technol(Nat Sci)(in Chi-nese),2004,17(1):1—4. [11]陈代荣,徐如人.乙二醇甲醚水溶液作介质水热法合成四方相ZrO2.3Y2O3纳米晶[J].高等学校化学学报,1998,19(1):1—4.CHEN Dairong,XU Ruren.Chem J Chin Univ(in Chinese),1998,19(1):1—4.
how to cheat read wife cheat story
my wife cheated on me now what i dream my husband cheated on me husband cheat
服务与反馈:
文章下载】【加入收藏
中国硅酸盐学会《硅酸盐学报》编辑室
京ICP备10016537号-2
京公网安备 11010802024188号
地址:北京市海淀区三里河路11号    邮政编码:100831
电话:010-57811253  57811254    
E-mail:jccs@ceramsoc.com