Materials Literature
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Based on the Fermi’s golden rule and the theory of Boltzmann collision term approximation, a physically-based model for hole scattering rate(SR) in strained Si1-x Gex/(100)Si was presented, which takes into account a variety of scattering mechanisms,including ionized impurity, acoustic phonon, non-polar optical phonon…
这份报纸的主要注意在磁性的领域配置和对待热的 Fe-15 的 magnetostrictive 行为上被奉献给不同的冷却的率的效果的学习 ?at% Ga 合金。在在 1,000 点退火以后 ? 敫 ? 湯獥愠敲映畯摮愠 ? 潪湩 ? 湩整晲捡 ? 敮牡 ?? 慢敳洠瑥污 ? 桷捩 ? 慭湩祬挠湯楳瑳 ? 景琠敨 ?? ?? 汣獡 ? 愢瀭畬 ? 汰獵?? 猯'T 匾 ?桰獡 e
以同时提供钆源和碳源的钆喷酸单葡甲胺为前驱体，利用微波作为加热手段实现分子水平上的搅拌，达到低温、短时间内制得均匀的小粒度Gd3+掺杂碳量子点（Gd3+/CQDs-MH）的目的。当前驱体在250 ℃下微波水热反应45 min时，获得的Gd3+/CQDs-MH表现出较高的量子产率和极强的磁共振性能，避免了传统加热方式对碳量子点的发光能力和弛豫性能极难同时提高的矛盾。该条件下合成出尺寸约1.0 nm的碳量子点，其荧光量子产率为11.0%，Gd3+的掺杂质量分数达16.9%，纵向弛豫性能高达4 545.3 mmol-1·L·s-1 (［Gd3+］=0.01 mmol·L-1)。并且，该碳量子点对HeLa细胞无明显毒性，有望用作高弛豫性能…
The fracture behaviour and morphologies of high-strength boron steel were investigated at different temperatures at a constant strain rate of 0.1 s-1 based on isothermal tensile tests. Fracture mechanisms were also analyzed based on the relationship between microstructure transformation and continuous cooling transfor…
在这研究，我们检验了质地的进化和 2060 的机械性质(T8 ) 合金在弯曲期间。一个象素旋转方法(PRM ) 被建议并且过去常描绘组织上，进化由电子反散射衍射在弯曲期间决定了。结果证明组织上，部件改变了不足道，与在立方体质地的减少的例外。合金的张力、产出的性质关于滚动方向在三不同取向被评估。机械力量被发现与减少把半径弄弯在三个方向增加；因此，这被结束 2060 (T8 ) 合金表在弯曲以后满足用法要求变丑。
A modified humic acid(MHA) binder was tested as a substitute for bentonite to prepare qualified specularite pellets. The results show that there is stronger chemisorption between organic functional groups in MHA binder molecular and specularite particles, improving the green pellet strength. MHA binder has obvious eff…
phosphorene nanostructures 的光反应用时间依赖者密度被学习功能的理论(TDDFT ) 。与 graphene 的吸收光谱相比， phosphorene nanostructure 的在紫外区域展出高吸收度，它显示高轻的吸收率。在一个低精力的回声地区，一光谱乐队延长到全部在红外线附近的区域。当推动刺激在扶手椅边方向极化时，在很少层 phosphorene nanostructure 的低精力的电浆子显示出明显的远程的费用转移刺激，但是是少些显著地读了之字形边方向。边配置显著地影响单层 phosphorene nanostructures 的吸收光谱。扶手椅边和之字形边在吸收光谱服务不同功能。而且，当推动刺激…
In liquid crystal display,the uniformity of spacers influences contrast degree and color tone change,et al.Thus,the test method of uniformity of spacers in LCD is researched in this paper.Firstly,the liquid crystal cells are made by using dry spray method and wet spray method,then the distribution character of spacers…
TiBCN nanocomposite coatings were deposited on cemented carbide and Si(100)by a cathode arc plasma system,in which TiB_2 cathodes were used in mixture gases of N_2 and C_2H_2.X-ray diffraction shows that TiB_2 and Ti_2B_5 peaks enhance at low flow rates of C_2H_2,but they shrink when the flow rate is over 200 seem.An…
The influence of aging temperature on phase transformation and mechanical properties of weld metal of maraging steel(grade C300)was studied.Microstructure was analyzed by means of optical microscopy,transmission electron microscopy,scanning electron microscopy and energy dispersive spectrum analysis.Gibbs free energy…
A novel polyhedral oligomeric octamethyldi- phenylsulfonylsilsesquioxane (OMDPSS) was synthe- sized from octaphenylsilsesquioxane and benzenesulfonyl chloride via a Friedel-Crafts reaction in high yield. OMDPSS was characterized by Fourier transform infra- red spectroscopy, 1 HN MR, 13 CN MR, and 29 Si NMR spectroscop…
) 是为高效的 polymethylphenylsiloxane 聚合物的合成的重要硅酮单体。在这个工作，从由煤气的阶段冷凝作用的 methyldichlorosilane 和 chlorobenzene 的 MPDS 的合成的机制被学习，并且有 35 种类的一个运动模型和 58 基本反应被建立。实验在大量反应条件下面在一个管状的反应堆被执行。反应物和产品的计算鼹鼠部分在与试验性的结果的一个好协议。进 chlorobenzene 的 CCl 契约的 chloromethylsilylene 的插入的机制被建议，它被证明是 MPDS 生产的主要小径。确定的运动模型能为 MPDS 合成在工业反应堆的设计和优化被使用。
A method to prepare nanostructures based on injection molding was proposed by taking Anodic Aluminum Oxide(AAO)templates as the mold inserts.Mold temperatures,hydrophobic properties and service life of the mold inserts were studied.Firstly,the replication quality of the nanostructures under different mold temperatures…
This article reviews the up-to-date progress in mechanocaloric effect and materials near ambient tem- perature. For elastocaloric materials, we focus on directly measured temperature change and its entropy origin in non- magnetic and magnetic shape memory alloys. In terms of barocaloric materials, change in magnetic s…
The Materials Genome Initiative(MGI)has attracted great attention globally since June 2011,when the US President Obama announced Advanced Manufacturing Partnership(AMP),in which MGI is a key component.In June 2014,the US National Science and Technology Council published‘‘Materials Genome Initiative Strategic Plan’’,de…
的体积容易在可见、近的红外线的区域在一个宽范围调节。双 shelled Ag@Au/Ag@Au nanoparticles 的非线性的光折射被电浆子回声显著地提高。我们的调查结果可以在生物传感器和非线性的光 nanodevices 发现应用。
Polyacrylate-fluorosilicone 块共聚物也就是， polyacrylate-b-polydimethylsiloxane 和 polyacrylate-b-polymethyltrifluoropropylsiloxane 为制作 icephobic 涂层被综合。表面形态学和块共聚物的化学作文被原子力量显微镜学和 X 光检查光电子光谱学描绘，建议 fluorosilicone 块在共聚物表面的顶上聚集了。水接触角度和冰的结果砍力量证明 methacryloisobutyl 增加多面的 oligomeric silsesquioxane 的某个数量能导致接触角度磁滞现象的减少和表面粗糙的增加，因而导致冰粘附力…
Vanadium oxide(V2O5)films were deposited on sapphire substrates by Radio Frequency(RF)reactive magnetron sputtering at sputtering time of 15 min,25min,30 min and 45 min.The film structures,film thicknesses,surface morphology,electrical and optical properties were studied at different sputtering time and other experime…
在现在的纸，在有弹性的媒介嵌入的多围的碳 nanotubes (MWCNT ) 的动态稳定性包括热环境效果被调查。到这个目的，一个非局部的 Timoshenko 横梁模型被开发它捕获小规模效果。碳 nanotubes 的动态管理方程包括轴的压缩力量的效果基于 Timoshenko 横梁理论被提出。然后，参量的研究被进行与简单地支持的结束支持在 MWCNT 的动态稳定性特征上调查静态的负担因素，温度变化，非局部的参数，苗条比率和有弹性的媒介的春天常数的影响。
2 nanoparticles 由稳固的州的散开方法展览综合了在房间温度的好敏感( 3.38 %)，低操作温度( 398 ? K )，快反应时间( 32 ? s )，并且恢复时间( 36 ? s )与好稳定性一起。