Study on the Easy Direction of Magnetization of Sm_（0．88）Dy_（0．12）Fe_2 Alloy

ＳｔｕｄｙｏｎｔｈｅＥａｓｙＤｉｒｅｃｔｉｏｎｏｆＭａｇｎｅｔｉｚａｔｉｏｎｏｆＳｍ_（０．８８）Ｄｙ_（０．１２）Ｆｅ_２ＡｌｌｏｙＺｈｕＭｉｎｇｙｕａｎ（朱明源），ＺｈａｎｇＨｕｉｙｏｕ（张慧友），ＺｈｕＹｕｌｉａｎｇ（诸于良）ＪｉｎＨｏｎｇｍｉｎ?..     

Synthesis and Structural Investigation of （LaO）_3BO_3 with Eu~（3＋） as Luminescent Probe

ＳｙｎｔｈｅｓｉｓａｎｄＳｔｒｕｃｔｕｒａｌＩｎｖｅｓｔｉｇａｔｉｏｎｏｆ（ＬａＯ）_３ＢＯ_３ｗｉｔｈＥｕ~（３＋）ａｓＬｕｍｉｎｅｓｃｅｎｔＰｒｏｂｅＰｅｎｇＹｉ＇ａｎ（彭夷安）；ＬｉＱｉｈｕａ（李其华）（ＨｕｎａｎＭｅｄｉｃａｌＣｏｌｌｅｇｅ，Ｃ?..     

Luminescence Properties and Site Substitution of Eu~（3＋）and Bi~（3＋） in Me_2Y_8（SiO_4）_6O_2

ＬｕｍｉｎｅｓｃｅｎｃｅＰｒｏｐｅｒｔｉｅｓａｎｄＳｉｔｅＳｕｂｓｔｉｔｕｔｉｏｎｏｆＥｕ~（３＋）ａｎｄＢｉ~（３＋）ｉｎＭｅ_２Ｙ_８（ＳｉＯ_４）_６Ｏ_２ＬｉｎＪｕｎ（林君）；ＬｉＢｉｎ（李彬）（ＩｎｓｔｉｔｕｔｅｏｆＭａｔｅｒｉａｌｓＳｃｉｅｎｃ?..     

Synthesis，Characterization，Crystal Structure and Quantum Chemistry Calculation of the Mixed Ligand Complexes ［Ln（CF_3COO）_3·（Phen）_2·（H_2O）_2］·CH_3COCH_3·H_2O

Ｓｙｎｔｈｅｓｉｓ，Ｃｈａｒａｃｔｅｒｉｚａｔｉｏｎ，ＣｒｙｓｔａｌＳｔｒｕｃｔｕｒｅａｎｄＱｕａｎｔｕｍＣｈｅｍｉｓｔｒｙＣａｌｃｕｌａｔｉｏｎｏｆｔｈｅＭｉｘｅｄＬｉｇａｎｄＣｏｍｐｌｅｘｅｓ［Ｌｎ（ＣＦ_３ＣＯＯ）_３·（Ｐｈｅｎ）_２·（Ｈ_２Ｏ...     

钢包炉（LF）CaO－SiO_2－MgO－Al_2O_3渣系的脱硫试验

钢包炉（ＬＦ）ＣａＯ－ＳｉＯ_２－ＭｇＯ－Ａｌ_２Ｏ_３渣系的脱硫试验郭上型，万真雅（华东冶金学院，马鞍山２４３００２）ＤｅｓｕｌｐｈｕｒｉｚｉｎｇＴｅｓｔｕｓｉｎｇＣａＯ－ＳｉＯ_２－ＭｇＯ－Ａｌ_２Ｏ_３ＳｌａｇｉｎＡＬａｄｌｅＦｕｒｎａｃｅ￥ＧｕｏＳ...     

Study on Electrolytes (CeO_2 )_( 0.7-x) (MO) _x (La_2O_3)_(0.3)(M=Mg,Ca, Sr)

ＳｔｕｄｙｏｎＥｌｅｃｔｒｏｌｙｔｅｓ（ＣｅＯ_２）_（０．７－ｘ）（ＭＯ）_ｘ（Ｌａ_２Ｏ_３）_（０．３）（Ｍ＝Ｍｇ，Ｃａ，Ｓｒ）ＣｈｅｎＧｕａｎｇｙｕ（陈广玉），ＬｉｕＪｉａｎｇ（刘江），ＨｅＬａｎｙｉｎｇ（何岚鹰），ＳｕＷｅｎｈｕｉ（苏文辉），Ｈｕ...     

Influence of CeO_2 on Corrosion Resistance of Laser Alloyed M_（80）S_（20） Alloy Layer

ＩｎｆｌｕｅｎｃｅｏｆＣｅＯ_２ｏｎＣｏｒｒｏｓｉｏｎＲｅｓｉｓｔａｎｃｅｏｆＬａｓｅｒＡｌｌｏｙｅｄＭ_（８０）Ｓ_（２０）ＡｌｌｏｙＬａｙｅｒ￥ＳｕＭｅｉ；ＣｈｅｎＣｈｉｎａｎ；ＷａｎｇＹｏｕ；ＬｉＤｉ；ＺｈｕＬｉｑｕｎ（ＭａｔｅｒｉａｌｓＳｃｉｅ?..     

Crystal Structure and Luminescence Spectra of Ternary Europium（Ⅲ） Complex［Eu（DBM）_3（2，2＇－BIPY）］（HDBM）

ＣｒｙｓｔａｌＳｔｒｕｃｔｕｒｅａｎｄＬｕｍｉｎｅｓｃｅｎｃｅＳｐｅｃｔｒａｏｆＴｅｒｎａｒｙＥｕｒｏｐｉｕｍ（Ⅲ）Ｃｏｍｐｌｅｘ［Ｅｕ（ＤＢＭ）_３（２，２＇－ＢＩＰＹ）］（ＨＤＢＭ）￥ＷａｎｇＭｉｎｇ－Ｚｈａｏ；ＪｉｎＬｉｎ－Ｐｅｉ（Ｄｅｐａｒｔ?..     

Y_（1－x）Dy_xBa_2Cu_3O_（7－δ）（X＝0．03，0．05）

叙述了用双靶直流磁控溅射仪制备Ｙ１－ｘＤｙｘＢａ＿２Ｃｕ＿３Ｏ＿（７－６）（ｘ＝０．０３，０．０５）超导薄膜的工艺。按其工艺制备的薄膜Ｔｅ均大于８８Ｋ，随着ｘ值增加，Ｊ＿ｃ有上升趋势。ＸＲＤ、ＳＥＭ的结果表明镝掺杂膜有很好的ｃ轴取向。讨论了高温超导体钉扎机制。     

Studies on Coordinations Reaction between Eu（NO_3）_3·3H_2O and Crown Ether 18C6 In Anhydrous Acetonitrile

ＳｔｕｄｉｅｓｏｎＣｏｏｒｄｉｎａｔｉｏｎｓＲｅａｃｔｉｏｎｂｅｔｗｅｅｎＥｕ（ＮＯ_３）_３·３Ｈ_２ＯａｎｄＣｒｏｗｎＥｔｈｅｒ１８Ｃ６ｉｎＡｎｈｙｄｒｏｕｓＡｃｅｔｏｎｉｔｒｉｌｅＬｉｕＳｈｉｃｈａｎｇ；ＺｈａｎｇＱｉａｎｇ（Ｄｅｐａｒｔｍｅｎｔ?..     

(La_xNd_y)_(0.90)Mg_(0.10)Ni_(3.09)Mn_(0.12)Co_(0.60)Al_(0.13)贮氢合金自放电性能研究

为了提高La-Mg-Ni基贮氢合金的荷电保持率,本文研究了La/Nd比的变化对La-Mg-Ni基贮氢合金自放电性能的影响。随着Nd替代La量的增加,(LaxNdy)0.9Mg0.10Ni3.09Mn0.12Co0.60Al0.13(x/y=5,4,3,2,1)合金的荷电保持率先增大后减小,当x/y=4时,其荷电保持率达到最大值80.8%(318 K)。合金电极贮存后,FESEM-EDS和XRD分析表明,合金颗粒表面形成了Mg(OH)2和Nd(OH)3。P-C-T曲线和Tafel极化测试表明,随着Nd含量的增加,金属氢化物的稳定性呈现先增加后降低和腐蚀电流先减小后增大的规律。     

(Fe_(0.86)Zr_(0.033)Nb_(0.033)B_(0.068)Cu_(0.01))_x(Al_2O_3)_(1-x)颗粒膜的霍耳效应

用磁控溅射方法制备了系列 (Fe0 .86 Zr0 .0 33Nb0 .0 33B0 .0 6 8Cu0 .0 1 ) x(Al2 O3) 1 -x颗粒膜样品 ,体积百分比x从 0 .3 3～ 0 .63 ,样品厚度约为10 0nm。室温下在Fe0 .86 Zr0 .0 33Nb0 .0 33B0 .0 6 8Cu0 .0 1 体积百分比x =0 .43时得到 17.5 μΩ·cm的最大饱和霍耳电阻率 ,比纯铁磁金属提高了 3～ 4个量级。对其磁性和微结构进行了研究 ,样品霍耳电阻率随外场的变化曲线 ρxy～H与磁场平行于膜面时的磁化曲线M～H有相似性 ,说明霍尔电阻率 ρxy与磁化强度M相关。样品电阻率 ρxx随金属体积百分比x的减小而增加 ,在x =0 .43附近发生突变 ,从金属导电变为绝缘体。根据微结构和输运性质对可能的机制进行了探讨     

Indentation creep behaviors of Mg61Cu28Gd11 and （Mg61Cu28Gd11）99.5Sb0.5 bulk metallic glasses at room temperature

The room temperature creep behaviors of Mg61Cu28Gd11 and(Mg61Cu28Gd11)99.5Sb0.5 bulk metallic glasses(BMGs) were revealed by means of nanoindentation technique.The creep mechanism was explored by characterization of creep rate sensitivity,creep compliance and retardation spectra.The results showed that the experimental creep curves could be well described by a generalized Kelvin model.The low creep rate sensitivity of both Mg-based BMGs indicated that their room temperature creep was dominated by localized shear flow.In addition,the(Mg61Cu28Gd11)99.5Sb0.5 glassy alloy exhibited lower creep rate sensitivity,creep compliance and milder retardation peak,indicating its higher creep-resistance and less relaxed state.Furthermore,the creep retardation spectrum consisted of two relatively separated peaks with the well defined characteristic relaxation times.     

La_(1.1)Fe_(11.4)Si_(1.55)Ge_(0.05)合金的磁热效应

使用电弧熔炼法制备了La1.1Fe11.4Si1.55Ge0.05合金。研究了用少量的Ge替代Si后,La1.1Fe11.4Si1.55Ge0.05合金的磁性和磁热效应。粉末X射线衍射结果表明:在1273K真空退火处理10d后,合金La1.1Fe11.4Si1.55Ge0.05主相为NaZn13型立方结构,存在微量的α-Fe相。热磁曲线M-T与Arrott曲线表明:在居里温度Tc=205K处发生由铁磁性(TTc)转变为顺磁性(TTc)的二级磁相变。在磁场变化0～1.5T下,根据等温磁化曲线通过Maxwell关系式计算得出最大磁熵变-ΔSmmax=9J.kg-.1K-1。Ge替代Si后该合金在其居里温度Tc处-ΔSm-T曲线半高宽增大,使合金的相对制冷能力RCP(S)有所提高。     

Structure and Magnetic Properties of Y(Fe_(1-x) Co_x)_ (11.3) Nb_(0.7)

ＩｎｒｅｃｅｎｔｙｅａｒｓＴｈＭｎ12 ｔｙｐｅｉｒｏｎ ｒｉｃｈｃｏｍｐｏｕｎｄｓｈａｖｅｂｅｅｎｉｎｔｅｎｓｉｖｅｌｙｉｎｖｅｓｔｉｇａｔｅｄｄｕｅｔｏｔｈｅｉｒｅｘｃｅｌｌｅｎｔｐｅｒｍａｎｅｎｔ ｍａｇｎｅｔｉｃｐｒｏｐｅｒｔｉｅｓ .ＡｌｔｈｏｕｇｈｐｕｒｅｂｉｎａｒｙＲＥ Ｆｅｃｏｍ ｐｏｕｎｄｓｄｏｎｏｔｅｘｉｓｔ,ｔｈｅＴｈＭｎ12 ｓｔｒｕｃｔｕｒｅｃａｎｂｅｓｔａｂｉｌｉｚｅｄｉｎｐｓｅｕｄｏｂｉｎａｒｉｅｓｏｆｔｈｅｔｙｐｅＲＥＦｅ12 -ｘＭｘ,ｗｉｔｈＭ =Ａｌ,Ｔｉ,Ｃｒ ,Ｓｉ ,Ｍｏ ,Ｖ …     

Magnetocaloric effect and magnetic properties of La_（0.9）Ce_（0.1）（Fe_（0.99）Mn_（0.01））_（11.6）Si_（1.4）H_（1.6） compound

Magnetocaloric effect and magnetic properties of La0.9Ce0.1(Fe0.99Mn0.01)11.6Si1.4 and its hydride La0.9Ce0.1(Fe0.99Mn0.01)11.6Si1.4H1.6 were investigated. The Curie temperature of La0.9Ce0.1(Fe0.99Mn0.01)11.6Si1.4 was increased by hydrogen absorption. XRD patterns showed that the structure of La0.9Ce0.1(Fe0.99Mn0.01)11.6Si1.4H1.6 remained NaZn13-type. The Curie temperature (TC) of the sample was increased from 174 K to 331 K. The homogeneity of the hydrogen absorption for La0.9Ce0.1(Fe0.99Mn0.01)11.6Si1.4H1.6 was proven very well by the random measurement of DSC. The magnetic entropy △SM of La0.9Ce0.1(Fe0.99Mn0.01)11.6Si1.4H1.6 had peak at 326 K. The peak value of-△SM-was 12.3 and 7.8 J/(kg.K) under magnetic field change of 0-2 T and 0-1 T,respectively,which was comparable with Gd5Si2Ge2. The negative slope and inflection point of the Arrott curve indicated that the first-order magnetic transition of La0.9Ce0.1(Fe0.99Mn0.01)11.6Si1.4 was reserved after hydrogen absorption.     

Osteodysplasty (Melnick-Needles syndrome) (author's transl)

Authors report a new case of osteodisplasty (Melnick-Needles syndrome) and describe radiological findings that are typical of this entity: bony sclerosis of base structures, abnormal dental alignment, sclerosis and irregularity of clavicles and ribs, described as "band-like" deformity, cortical irregularity of tubular bones with metaphyseal flaring and diaphyseal bowing. Flat bones are broadened, particularly iliac crest and vertebral bones. Facial features described by the majority of authors in this entity are present in our patient in an incomplete form: craniofacial disproportion, micrognatia, depressed temples, exophthalmus (not in our patient) and broadened forehead. The paper is intended to gather clinical data of already reported cases in order to facilitate clinical research in the future from the immunological, genetical and biochemical points of view. Our patient has the same clinical history as the patient studied in the original paper. Dr. Melnick was kind enough to send us clinical data and autopsy findings.