Materials Literature
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Up until recently (i) c-Si and poly-crystalline Si (poly-Si have been assumed to be qualitatively different than (ii) a-Si(H). X-ray absorption and photo-emission studies combined with ab-initio many-electron theory for their interpretation have established that they are indeed much similar. In point of fact, a-Si(H)…
In this paper, the method of Poly(N-vinylcarbazole)-co-di(2-(4-methylphenyl) (MSPD) Iridium(III))(NVK-MMI) preparation was carried out. The novel polymer were based on phosphorescent polymers involving a carbazole unit and an iridium-complex unit. The structure of the polymer were characterized by elemental analyses,…
A formula is derived for calculating the maximum magnetic permeability μ mt of ferromagnets on the basis of their demagnetization factor, coercive force, saturation magnetization, and residual magnetization. The calculation results may be used in electrical engineering and magnetic structural analysis, in place of lab…
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To develop novel wood preservation technique trimethylborate(TMB) and boric dioxide were used by sol-gel process to modify poplar (Populus euramevicana cv.‘I-214'.) wood. The temperature variations of the storage modulus and the loss tangent along the grain for two kinds of chemically modified poplar woods were measur…
The effect of 2 MeV electron irradiation at 300 K on the critical temperature (T c ) and magnetoresistance (R B) at T < T c of Ag/Bi2223 tapes is investigated. It is shown that a slight increase in T c and abnormal reduction of R B are observed at low irradiation doses (∼1014 cm−2). At higher doses (∼1015 cm−2) or lon…
The mechanism of decomposition transformation of Fe–N the austenite system has been investigated. An improved process of austenitic nitriding, achieved by applying controlled nitrogen potential theory, allowed high nitrogen austenite samples with a uniform nitrogen concentration to be produced. The key point of this g…
This article describes an experiment for investigation of the tensile strength of adhesives used in production of electric motors. The study was conducted for an application of adhesives in production of hybrid components composed from various materials. Composite elements were made from iron powder and Nd-Fe-B alloy…
Abstract Each bitumen has a slightly different group composition, thus bitumen modification with the SBS copolymer gives slightly different results in each case. Both in the industry and construction practice there is still no simple method available which would allow the evaluation of the impact of SBS content and th…
Single-crystalline ZnO nanotubes were fabricated via a simple aqueous solution method under low temperature and atmospheric pressure conditions. X-ray powder diffraction (XRD), field-emission scanning electron microscopy (FE-SEM) and high-resolution transmission electron microscopy (HR-TEM) equipped with the selected…
Amorphous ferrimagnetic Tb x Fe1−x films with perpendicular magnetic anisotropy and Tb x Fe1−x /NiFe exchange-coupled structures characterized by unidirectional anisotropy are obtained. The magnetic and chemical inhomogeneity of alloys of Tb x Fe1−x compensation composition is established on the basis of Mössbauer stu…
CVD diamond is the main trend of future diamond materials. Surface uniformity of CVD diamond film polishing is one of the key technologies to expand the application of CVD diamond. Based on the catalytic polishing method, rotation velocity of the planet wheel is achieved when the lapping plate is in different rotation…
"Introduction: 2nd International Workshop on Thermo-mechanical Fatigue." Materials at High Temperatures, 30(1), p. 1
In the paper, the PbO2-Ti electrodes were characterized by SEM, and introduce the self-made catalyst Fe3+/TiO2 into the electrolytic system to treat the nitrobenzene wastewater, in order to improve the reaction speed and the removal rate of COD and NB and form heterogeneous electro-catalytic oxidation technology. In o…
Synthesis of Al metal matrix composites (MMCs) with ceramic particulate reinforcements through casting route is associated with the problem of non-uniform distribution of particulate. The problem of non-uniform distribution is more for the case of larger particulate volume fraction. In the present study a novel method…
Metal magnetic memory testing (MMMT) technique is a kind of new NDT technique. It is interested by NDT area in recent years for its own advantages: early diagnosis, preventing sudden fatigue failure of equipments and the testing samples do not need to be magnetized. In order to find out the variation law of the residu…
In this paperthe silver particle was adhered to the sponge by different ways and the sponge became to resistance bacterium. The AgNO3 reduced by SnCl2 is the best way via testing the weight gain rate and the antibacterial effect. By comparing the weight gain rate and the antibacterial effect at different concentration…
We illustrated the optimization of the growth of multi-wall carbon nanotubes (MWCNTs) using thermal chemical vapor deposition (CVD). Palm-based dihydrostearic acid (DHSA) which was never been reported as a precursor, was used as the precursor over five different trimetallic catalysts for the growth of MWCNTs. These tr…
In order to meet the need of high-strength and high-electrical conductivity copper alloys in industry. A method of making high-strength and high-electrical conductivity copper alloys is discussed in this paper. This method uses the technology of heated mold continuous casting to make Cu-Cr alloy. Because it utilizes t…
Ammonium polyphosphate (APP) produced by non-P2O5 process and traditional P2O5 process were used in the intumescent flame retardant (IFR) polypropylene (PP) composite (IFR-PP). The composite was tested by limited oxygen index (LOI) and UL-94. TGA and SEM were used to study the decomposition processes. Results showed t…