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 production 0films anodic is presented in a solution of sulfuric acid 15% v/v and to a temperature of 20 oC, with constant agitation (100 rpm), and to three different current densities (10, 15 and 20 mA/cm2), to substitute the chromic acid in the process of anodizing of the aluminum alloy 2024-T3. The electrochemic…
Carbon Nitride (CNx) coating showed superlow friction when it slid against a Si_3N_4 ball in dry N_2, and this phenomena took place nitrogen atoms desorption from topmost layer of CNx and structural change from CNx to graphitic layer. However, it was taken place after several thousand friction cycles, so-called runnin…
Composites of Polypropylene (PP) and High Density Polyethylene (HDPE) with three types of continuous sized waste carbon fibres (CF) were manufactured using twin screw compounding. The carbon fibres used were collected as waste product form the 3D weaving process. Compounds with various percentages, between 4.6 % and 1…
In this paper aluminium-doped zinc oxide(ZnO:Al) conducting layer was deposited on polyethylene terephthalate(PET) substrate by r. f. magnetron sputtering method. The effects of gas pressure and r. f. sputtering power on the structural and electrical properties of ZnO:Al thin film were investigated experimentally. The…
This report covers the laboratory studies that have been performed at Nuclear Chemistry, KTH in the project “Bentonite Erosion”. Many of the experiments in this report were performed to support the work of the modelling group and were often relatively simple. One of the experiment series was performed to see the impac…
Analysis of In-Vessel Coolability and Retention with Control Rod Guide Tube Cooling in Boiling Water Reactors
Bioactive ceramics are used for bone-repairing owing to attractive features such as direct bone-bonding in living body, because they have the ability to bond directly to bone. However, there is limitation on clinical applications due to their inappropriate mechanical properties performances such as higher brittleness…
Photoluminescence and electrical conductivity of silicon containing multilayer structures of diamond like carbon were studied. These multilayer structures were deposited in a sequence a-Si:H/ Si-(a-C:H)/ a-C:H using conventional RF-PECVD technique. It was found that with the variation of silane partial pressure during…
The introduction of a third component into planar photonic crystal waveguides definitely influences the properties of linear defect modes, such as the band diagram, intrinsic loss, group velocity and group velocity dispersion. With the increase of the dielectric constant of the interlayer, the guided modes shift to lo…
The transmission properties in microwave domains (10 GHz to 40 GHz) of generalized dielectric Fibonacci multilayer generated by the rule : with a pair of positive integers m and n were studied. The initial generations of generalized Fibonacci sequence are taken as follows: S0 = L and S1 = H, where H and L are two elem…
混合了 SrFe (Cu ) O3 δ的氧离子、电子的进行的膜被准备由固态反应方法。材料的水晶结构，氧 nonstoichiometry，和阶段稳定性被 TGA 和 XRD 学习。通过这些膜的氧浸透流动在操作从 750 ～ 950 ° C 的温度被学习。结果证明在 SrFeO3 δ化合物的那做的 Cu 在 single-phased perovskite 结构的形成上有重要效果。为 SrFe1 xCuxO3 δ系列材料，氧 nonstoichiometry 和随做 Cu 的增加更加增加的氧浸透流动满足(x = 0.1 0.3 ) 。当 Cu 替换数量到达了 40% 时，膜的 sintering 性质显著地减少了。SrFe0.7Cu…
We present a preliminary study concerning the luminescence properties of Eu3+-doped langasite (La3Ga5SiO14 - LGS), langatate (La3Ga5.5Ta0.5O14 - LGT) and langanite (La3Ga5.5Nb0.5O14 - LGN) crystals. The luminescence, reflectance and excitation spectra are used to compare the fluorescence efficiency and determine the m…
使不能调动，为 ABTS 的免费紫胶大小写是在磷酸盐缓冲区的 140.6 和 31.1 μM (0.1 M， pH 3.0 ) 在 37 ° C 分别地。使不能调动的紫胶案例基于紫胶案例催化作用是生物传感器的研究和发展的一个好候选人。
作为一个工业大学合作社工程，试验性的研究被进行在一些处理参数根据工厂生产线的实际条件被预先的条件下面与 780 MPa 的张力的力量和 25% 的延伸开发新滚动寒冷的导致转变的粘性(旅行) 钢。为获得优秀力量韧性的最佳的热处理条件平衡，明确地在内部批评退火温度和等温的处理温度，借助于热模拟测试被调查。最终，理想的机械性质成功地被达到，并且微观结构和保留的奥氏体稳定性被光显微镜学(OM ) 和电子 back-scattered 衍射(EBSD ) 学习。保留的奥氏体谷物的尺寸在他们附近与碳清楚的空间(铁酸盐和 bainite ) 的尺寸通常成正比，这被发现了，并且在他们在压力紧张下面的转变序列有显著选择。
Copper(II) triethylenetetramine (Cu(trien)) 2+ is an agent suitable for the 1-step determination of the cation exchange capacity (CEC) of many geomaterials using a procedure much less laborious than other, commonly used methods. It is also suitable for the determination of the composition of original exchangeable cati…
有 12 nm 的粒子尺寸的 Nanocrystalline MnZn 铁酸盐(Mn0.6Zn0.4Fe2O4 ) 用花的碱的 ZnMn 电池热水地被综合，并且由影响因素的研究伴随了。nanocrystals 被粉末 X 光检查衍射(XRD ) 为水晶的阶段鉴定检验，并且为谷物形态学扫描电子显微镜学(SEM ) 。在 Fe (II ) 的集中之间的关系， Mn (II ) ，和 Zn (II ) 和 pH 价值通过 Fe (II ) Mn (II ) Zn (II ) NaOHH2O 系统的热力学的分析被获得。结果证明所有离子在 1011 的 pH 价值完全被猛抛。最佳的准备条件是：10.5 的一起沉淀 pH， 200 的温度？？
A series of Pd-containing hydrotalcite precursors(M3Al-HT) with different M2+(M=Mg,Co,Ni,Cu,Zn) ions were synthesized by a co-precipitation method.Pd/M3AlO catalysts were derived from these hydrotalcite-like compounds by calcination.X-ray Diffraction(XRD),thermogravimetry-differential thermal gravimetry(TG-DTG),N2 ads…
Various stainless steels were investigated to examine the new NDE technique. The new NDE technique did not depend on either magnetization or demagnetization of materials. The magnetic flux caused by stress concentration in stainless steels was examined with the ultra sensitive magnetic flux density meter. Tensile and…
在泰坦上的甲烷(OCM ) 的氧化联合吃了 perovskite 催化剂被结合的流动地的三维的数字模拟开发了热转移以及异构的运动模型。反应被假定在煤气的阶段并且在催化表面上发生。运动的率常数试验性地用十个步骤被获得运动模型。模拟结果与 OCM 实验的数据同意相当好，它被用来氧化联合在在甲烷获得的选择和变换上调查温度的效果进程。线性地与温度和 C2 的选择增加的甲烷的变换在 973 1073 K 的温度范围实际上是不变的。学习证明 CFD 工具使甚至为象 OCM 那样的高发热的反应实现异构的运动模型可能。
在血浆上的电解质的钾焦磷酸盐的效果为 AZ91 Mg 合金的电解氧化(PEO ) 过程被调查。形态学和 AZ91 Mg 合金上的涂层层的化学作文被评估，腐蚀电阻被 potentiodynamic 极化分析也估计。从洗澡 2 涂的 AZ91 Mg 合金上的涂层层为 360 s 包含钾焦磷酸盐的 0.03 mol/L 展出了更加稠密的结构并且包含了 11%18%( 集体部分) 磷。更高的内容从洗澡 2 涂的涂层层磷能在氧化物层的底部被检测，它强烈暗示磷的离子可能在障碍层被集中。增加的 AZ91 Mg 合金和腐蚀水流密度的涂层层的腐蚀潜力与增加钾焦磷酸盐的集中减少了。从洗澡 2 涂的 AZ91 Mg 合金的涂层层的极化电阻(Rp ) 是…