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 crystallographic structure and magnetic properties of La(Fe11.4Al1.6)C0.02 are studied by magnetic measurement and powder neutron diffraction with temperature and applied magnetic field. Rietveld refinement shows that La(Fe11.4Al1.6)C0.02 crystallizes into the cubic NaZn13-type with two different Fe sites: FeI (8b…
A green, low-cost and facile strategy for synthesis of SnO2-Pt/carbon nanotubes nanocomposites with SnO2-around-Pt structure by in situ spontaneous reduction of PtCl6 2- with Sn 2+ on the CNT surface is reported. The morphology and structure of the prepared SnO2-Pt/CNTs nanocatalyst are characterized by scanning elect…
An investigation has been carried out for the determination of the workability behaviour of Cu-SiC composites under two different stress conditions namely plane and tri-axial state. Cylindrical preforms with 95% initial preform density possessing aspect ratio of 0.60 are prepared from copper with various percent conte…
The phase composition of massive titanium preforms obtained using oxidative constructing of thin-walled ceramics (OCTC) selected from the exponential section of the kinetic oxidation curve is investigated. It is demonstrated with the help of X-ray phase analysis (XPA) that the phase composition of the preform at the o…
이산화티탄 표면에 흡착되는 금 입자의 분포 또는 그 반대 경우의 분포에 영향을 끼칠 수도 있는 정전기적 상호작용과 금 입자를 코팅한 Glutathione 층의 표면물성을 규명하였다. 이를 위하여, 원자힘현미경(AFM)으로 Glutathione 층표면과 이산화티탄표면 사이의 표면힘을 염 농도와 pH 값에 따라 측정하였다. 측정된 힘은 Derjaguin-Landau-Verwey-Overbeek(DLVO) 이론으로 해석되어 표면의 정전기적인 특성들이 정량적으로 산출되었다. 이 특성들이 염 농도와 pH에 대하여 나타내는 의존성을 질량보존의 법칙으로 기술하였다. pH 8과…
Article Practical Test on Brass Valves Using the 5% Ammonia Test to Elucidate the Reasons of Specific Failure Patterns of Stress Corrosion Cracking SCC was published on April 1, 2012 in the journal Practical Metallography (volume 49, issue 4).
The contemporary aspects of ultra precision machining of Si3N4 with regards to enhanced productivity and precision demands is presented in this paper. This paper reviews the literature on machining technology of covering the history, Several machining methods of Si3N4 are discussed. By comparing their advantages and d…
Tenofovirrenal toxicity, particularly when associated with other antiretrovirals, has been reported in the adult HIV-positive population. Reports in HIVpositive children are very rare. The authors report a paediatric case of nephrotoxicity associated with tenofovir and didanosine, emtricitabine and lopinavirritonavir…
Using the well-known patent methods, we have synthesized 1,3-butadiene epoxidation α-Al 2 O 3 supported catalysts containing 15 wt % of Ag and 250–1500 ppm of Cs (Johnson Matthey, H16P07). The physicochemical properties of samples are systematically studied by varying the dispersion of supported silver, the amount of…
Abstract The available experimental and theoretical evidence for vibrational excitation of the adlayer in CO chemisorption on metal surfaces raises the question on the validity of the generally accepted model of 'precursor-mediated' adsorption in the presence of adsorption–stimulated desorption (asd) as triggered by t…
The Influence of the Shape of the Reaction Chamber on Spheroidisation of Cast Iron Produced in the Lost Foam Casting Process with Use of the Inmold Method The article presents the results of the research on the influence of the shape of reaction chamber on spheroidisation of cast iron produced with use of the inmold m…
the hardening curve of the steel in the plastic deformation only considers the influence of the deformation degree on the resistance. This paper, according to the basic theory of plastic processing, proposes out the respective relation between the deformation resistance and the deformation degree, the temperature, as…
Processes that take place during extraction of HAuCl4 from hydrochloric acid solutions with neutral oxygen-containing extractants (esters, ethers, and ketones) were considered. Distribution ratios for certain extractants were determined. Separation factors βAu/M (M = Fe, Ag) were shown to exhibit low change upon extra…
The shape-memory alloy, for example NiTi (Nickel Titanium), is used for an actuator and frame by the shape- memory effect and the super-elasticity effect. And piezoelectric material, for example PZT (Lead Zirconate Titanate), is used for an actuator and sensor by the piezoelectric effect and the pyroelectric effect. H…
Organic semiconductor technology has advanced rapidly in the last 15 years. Organics are more environmentally-friendly than silicon. This paper reviews the history of organic semiconductors, then discusses the author's research into circuits made with squid ink and with other edible common materials.
A defect model for Sc2O3was developed using quantum mechanical modeling and evaluated under cathode operating conditions to determine the electronic properties of Sc2O3used in cathode experiments. We find that Sc2O3can conduct well enough with a sub-ppm impurity concentration such that the limiting step of emission is…
The physical ageing kinetics of uPVC pipes with different levels of gelation were investigated. No significant influence of the level of gelation on both the deformation kinetics and the physical ageing kinetics were observed. As a consequence, installed uPVC pipes as employed for gas, water and sewer purposes age in…
We present a study of our in-house made tetracontane wall-coated87Rb vapour cells for rubidium atomic clock applications. Evolution of the double-resonance (DR) signal during the so-called ripening process of these cells is measured and interpreted. Intrinsic properties of the coated cells post ripening are presented.…
The results from pilot tests of catalytic systems equipped with 7–12 woven or 5–14 knitted platinoid gauzes in the oxidation of ammonia are considered. OAO Yekaterinburg Non-Ferrous Metal Processing Plant produces gauzes of the two types: Pt 092 0.092-mm wire woven and Pt 076 0.076-mm wire loosely knitted (large-mesh)…
A coupled TH/Neutronics/CRUD framework, which is able to simulate the CRUD deposits impact on CIPS phenomenon, was described in this paper. This framework includes the coupling among three essential physics, thermal-hydraulics, CRUD and neutronics. The overall framework was implemented by using the CFD software STAR-C…