Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
The microwave properties of Z type Ba hexagonal ferrites with uniaxial anisotropy can be controlled over a wide range by choice of an appropriate mixture of Zn, Ni, and Co as divalent species. Using unmagnetized powders of these ferrites, the microwave permeability spectra were taken in a swept frequency mode in the t…
In this paper, effects of magnetic heat treatment (MHT) on structure and hydrogen permeation properties of Nb49Ni25Ti26 alloy membrane have been investigated. XRD and SEM were employed to char acterize its phases and microstructure. Also, hydrogen diffusion coefficients (DH) of the alloy membrane were measured in Deva…
Using reduced oxide graphene( RGO) as precursor,the monodispersed spherical graphene quantum dots( GQDs) with uniform size were prepared by one-step hydrothermal method.The morphology,structure and optical properties of the samples were characterized by TEM,AFM,FTIR,UV-visible spectroscopy and photoluminescence spectr…
The resistivity of Hg0.89Mn0.11 Te has been measured by the superconducting quantum interference device magnetometer in the temperature range from 5 to 200 K under the applied magnetic field of 1, 2, 4 and 6.5 Tesla, respectively, compared with that of no-magnetic field. The results show that the resistivity increases…
The surface property of colloidal nanosilica(SiO2) nanospheres is regulated by modification with organoalkoxysilane, such as mercapto propyl trimethoxysilane (MPTMS), 3-aminopropyl trimethoxysilane (APTMS),phenyl trimethoxysilane(PTMS), 3-(phenylamino) propyltrimethoxysilane (PAPTMS). The surface of silica is hydrophi…
Copper (Cu)-bearing stainless steel with release of Cu 2? ions is a novel material for coronary stents that could reduce the in-stent restenosis after the stent implan- tation. The inflammation has been recently recognized as an important factor to smooth muscle cells proliferation, thrombosis, and hence the restenosi…
)作为原料。FSEM， TEM， HRTEM， SAED， XRD， FTIR 和拉曼， ICPAES，激光粒子尺寸分析器，氧和氮分析器，碳 / 硫 determinator 和 TG-DSC 为形态学，结构，化学作文和同样综合的 ZrC 样品的热稳定性的描述被采用。同样综合的样品与 50nm 的一种平均粒子尺寸表明了高纯净，低氧内容和均匀地分布式的 ZrC nano 粉末。另外，吸热的率的效果和可能的化学反应机制也被讨论。
In this paper, we reported a solvothermal method for the synthesis of octahedral Pt-Cu bimetallic alloy nanocrystals (NCs) with tunable composition. Inspired by the result from our previous exploration on octahedral Pt-Cu alloy NCs that Cu contents can be tuned from 10 % to 50 %, we further tuned the Cu portion from 5…
近年、ヨウ化鉛系有機無機ペロブスカイトを用いた太陽電池において15%以上の高効率が実 現され、多くの研究がなされてきている。更なる高効率化のためには、これらの化合物の基礎的 な光物性性を理解することが必要不可欠である。そこで、本研究ではヨウ化鉛系有機無機層状ペ ロブスカイト単結晶の基礎的な光物性の評価を行った。 光物性の評価に用いたのは、シクロヘキセニルエチルアミンを有機層としたヨウ化鉛系層状ペ ロブスカイトの単結晶である。単結晶は、溶媒であるアセトンにシクロヘキセニルエチルアミン のヨウ化水素酸塩及びヨウ化鉛をモル比2:1で溶解し、溶媒蒸発法により作製した。得られた 単結晶は数mmX数mm、厚さ3mm程度の大きなものであった。こ…
After injury of the central and peripheral nervous systems,functional recovery is impaired by axon regeneration failure.Various approaches for promoting axon growth have been attempted but their low efficacy has prevented them from being clinically applicable.It is possible that in spite of all the research that has b…
The adsorption behavior of heparin and fibronectin was studied by quartz crystal microbalance with dissipation（QCM-D）, and the interaction between heparin and fibronectin was evaluated using immunochemistry and isothermal titration calorimetry（ITC） measurement. The results showed that there was competitive adsorption…
The development of the recrystallization texture of the alloy AA3104 was investigated by analysis of orientation distribution functions determined by X-ray diffraction,supported by EBSD local texture analysis.A typical β-fiber with nearly 20%Bs orientation {011}211 was detected in the final hot rolled sheet.At the beg…
微结构变化上的深低温实验法的热处理的效果，穿使渗碳的吵闹 1.7131 等级钢的抵抗，和坚硬被调查。结果证明低温实验法的热处理减少了保留的奥氏体并且增加了碳化物数量。在低温实验法的热处理以后，另外，碳化物显示出更一致的分布，作为与通常对待的相比。低温实验法地对待的样品的坚硬被改进，这也被澄清，但是当表面增加，相对改进与距离减少。wear 抵抗由于低温实验法的热处理改善，这被显示出，并且占优势穿机制是粘合剂的联合并且 tribo 化学穿。
Calcium carbonate whisker(CCW) was surface modified by 3-aminopropyltriethyloxy silane(KH550) and blended with poly(butylene succinate)(PBS) and subsequently granulated via melt extrusion.When the loading of CCW was below 5%,the tensile,bending,and impact strengths of the resultant PBS/CCW composites increased 1%~3.9%…
Three low-carbon dual-phase(DP) steels with almost constant martensite contents of 20vol% were produced by intercritical annealing at different heating rates and soaking temperatures. Microstructures prepared at low temperature(1043 K, FH1) with fast-heating(300 K/s) show banded ferrite/martensite structure, whereas t…
在分子的筛上支持的 CuCl 在催化乙醇的氧化 carbonylation 到 diethyl 碳酸盐吸引了增加的注意。Mesoporous MCM-41 广泛地由于它的大表面区域和明确的 mesoporous 结构被用作催化剂支持。就它的内在的弱酸味而言， MCM-41 被一个简单受精方法修改合并艾尔。没有改变 MCM-41 的 mesoporous 结构，艾尔部件的加入导致了 Cu 种类的高分散和酸地点的增加，并且因此提高了 CuCl/MCM-41for diethyl 碳酸盐合成的催化活动。
In this paper,the influence of deformation on the microstructure and low-temperature refining behavior of Al-3.5P master alloy was investigated.The results show that the average size of AIP particles can be reduced obviously from 15.3 μm to about 2.1 μm by deformation.However,it exhibits entirely opposite influence on…
graphene 氧化物和 diazoresin 的 layer-by-layer 集会被执行经由静电并且平面底层和胶体的模板上的氢契约相互作用。成功的平面、球形的生长多层能被紫外力的 spectrophotometry 调查并且分别地扫描电子显微镜学。随后的紫外照耀或加热将把离子的契约和氢契约变换成共有原子价乐队，它显著地改进稳定性多层对溶剂蚀刻合成。为 cross-linked 核心壳 composites，模板核心能被溶解移开，空 microspheres 被获得。
, 数字的减小在 Ag nanoparticles 的 electrocatalytic 活动的层，和 pH 价值被调查。修改电极在 101000 杮愠獢牯瑰潩 ? 湩琠敨瘠獩扩敬氠杩?爠来潩 ? 潣灭牡摥眠瑩 ? 異敲吠佩匼? 资 ? 啓 ? 愠摮愠 ? 硥散汬湥 ? 数晲牯慭据 ? 的微分脉搏 voltammetry 有一个线性范围湩琠敨瀠潨潴慣慴祬楴? 敤牧摡瑡潩 ? 景 ?? 圠敨 ? 敹汬睯朠汥眠獡甠敳 ? 獡琠敨瀠敲畣獲牯 ? 桴 ? 慳灭敬漠瑢楡敮 ? 晡整 ? 票牤瑯敨浲污琠敲瑡敭瑮愠 ?? ‰ ?? 牬 ? 牬吗？？
The use of soft X-rays in a neutrahzer represents an alternative technique that could replace conventional radioactive sources.In this study,we evaluated the charging characteristics of a soft X-ray aerosol neutralize!.In addition,the results from the evaluation of the soft X-ray charger were compared with results obt…