Materials Literature
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High quality, large dimension TiSa crystals are required for achieving Petawatt femtosecond lasers. We will show recent results of TiSa crystals grown at RSA-Le Rubis by Kyropoulos technique achieving 10 cm diameter and high Figure-Of-Merit.
本文基于低温环境下平行圆柱孔结构的纺织材料热湿传递稳态模型，研究了一类双层纺织材料厚度设计反问题。首先给出了一个双层纺织材料热湿传递稳态模型，并采用有限差分方法求解该问题。然后，根据服装热湿舒适性指标，将纺织材料内层厚度看成一个未知量，提出了一类双层纺织材料厚度设计反问题，将该反问题归结为一个最大概率最小模问题，采用罚函数法将该约束优化问题转换为无约束的优化问题，并采用粒子群算法求解。数值结果说明了双层纺织材料厚度设计反问题提法的合理性，以及粒子群算法的有效性和鲁棒性。 This paper studies a new inverse problem of estimating bi-layer textile fabrics t…
Second phase particles and solute atoms have been used as an important constituent in the design of materials and processes due to their ability to restrain the motion of grain boundaries. The drag effect occurs on a scale comparable to the particle diameter and interface thickness. However, to simulate grain growth w…
This paper discusses selected problems arising from the presence of radioactive background sources in experiments searching for extremely rare processes. Physical properties of ^{42}K ions, present in argon as a progeny of ^{42}Ar, were investigated. A model of ^{42}K ions behavior in liquiefied argon is presented. Al…
This study is conducted to carry out the compression forming of aluminum films using a diamond mold in atmosphere and vacuum without the use of lubricant, in order to evaluate the transcription quality and metallographic structure of such films formed under the two conditions. In the diamond mold, three-dimensional mi…
Host materials based on metal complexes are of great interest because of their high structural and functional diversities. To obtain unique and applicative metal complex hosts, we attempted new combination of building blocks, a divalent Cu(II) ion and a PF6- anion. A PF6- anion has been used as a noncoordinated anion…
Get PDF Email Share Share with Facebook Tweet This Post on reddit Share with LinkedIn Add to CiteULike Add to Mendeley Add to BibSonomy Get Citation Copy Citation Text S. Draxinger, C. Wünsche, and R. Rascher, "Subaperture-polishing with variable spots," in Renewable Energy and the Environment, OSA Technical Digest (o…
The radar absorbing materials (RAM) and structures (RAS) are widely used in aerospace sectors to reduce the RCS of the aircraft, electromagnetic shielding of high reflection surfaces and metal surfaces etc. The stealth technique is the most typical application of electromagnetic (EM) wave absorption technology. Using…
Inverse spinel-type metal oxides, magnesium-manganese-titanium oxide (Mg1.5Mn0.75Ti0.5O4), was prepared by a solid state reaction crystallization method. This material was investigated by X-ray, saturation capacity of exchange and Kd measurement. The experimental results have proved that the acid-treated sample has a…
In current study, two sets of diffusion couple sample is put through a diffusion couple experiment. The samples were prepared through cutting and grinding-polishing procedures before undergoing heat treatment and cooling down process. After that, Scanning Electron Microscopy (SEM) and Energy Dispersive Spectroscopy (E…
Carbon nanotubes (CNTs) which are directly grown on nanoporous alumina templates by chemical vapor deposition are modified by acid-treatment or/and annealing and then a negative electrode is obtained. Next, alumina is deposited onto the nanoporous alumina templates with the grown as well as modified CNTs by a chemical…
В работе исследованы фотоэлектрические параметры фотоэлектрохимической ячейки (ФЭХЯ) на основе нанокристаллического диоксида титана, полученного по разным методикам. Установлено, что времена жизни носителей заряда (электронов) для ФЭХЯ на основе анодов из TiO2, полученного гидролизом дигидроксодилактатотитаната(IV) ам…
Методом хроноамперометрии и вольтамперометрии с линейным изменением потенциала исследовали влияние электродов сравнения (Ag, AgCl|KF + KCl или Sn, SnF2) на кинетику роста новой фазы на границах монокристаллов твердых электролитов LaF3:Eu2+ и CeF3:Sr2+ с металлическими электродами Ag и Bi. Показано, что при использован…
Методом трансляции исследованы фазовые равновесия системы Na,K,Mg,Ca//SO4,Cl H2O при 50°С в области кристаллизации астраханита (Na2SO4 · MgSO4 · 4H2O). Установлено, что астраханит как равновесная фаза исследуемой системы участвует в формировании 35 дивариантных полей, 39 моновариантных кривых и 22 нонвариантных точек.…
Aiming at the shortcoming that base-catalyzed quarter-wave silica antireflective coatings,prepared by sol-gel method,are porous and therefore low environment-resistant,water/NH3vapor and/or hexamethyldisilazane vapor were utilized to modify the surface of these coatings to obtain high hydrophobicity and abrasion-resis…
ZnO:Mn thin films were prepared on glass substrates using RF magnetron sputtering method.Raman spectroscopy,X-ray diffraction spectra and SEM were used to analyze the structural characteristics of ZnO:Mn films with the different working pressure.The results show that ZnO:Mn thin films have the significant wurtzite str…
This article may produce an impression that it deals with low priority issues of pipelines corrosion inhibitor protection processes and corrosion inhibitors (CI) lab testing techniques.However, it is proved that clear understanding of CI active molecules location makes it possible to identify the causes of CI ineffici…
Our work is focused on simplifying STED microscopy. We are currently developing two STED microscopes based new concepts which aim at using only one laser source for both excitation and stimulated emission depletion.
通过熔融共混,制备了等规聚丙烯（iPP）/纳米碳酸钙（nano-CaCO3）复合材料,研究了不同剪切环境下nano-CaCO3粒子在聚丙烯（PP）基体中的分散性能及其对基体熔融过程的影响,并利用广角X射线散射仪（WAXS）、差示扫描量热仪（DSC）、偏光显微镜（PLM）、扫描电镜（SEM）考察了该复合材料的结晶行为。结果表明：在剪切环境中,nano-CaCO3粒子与基体的摩擦、碰撞几率增加;随着nano-CaCO3用量的增加,体系剪切热升高,加快了基体熔融的速度,并改善了nano-CaCO3的分散效果。当nano-CaCO3用量低于3%时,其在PP基体中起到成核剂的作用,提高了PP的结晶度,并诱导β型晶体的生成;当其用量超过3%时…
This paper introduced several methods of measuring rotational viscosity of nematic liquid crystal,and analyzed the characteristic of each.According to the method of transient current,the rotational viscosity of nematic LC mixture has been gotten.Through improving the method of measuring dielectric constant Δe of liqui…