Materials Literature
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The paper deals with the technology of fabricating the filters used in aircraft engines. The new methods of electrochemical dimensional processing are presented, which are used for collective processing of openings with various cross-sections in thin-walled filters.
This work investigates the applicability of strain induced magnetic anisotropy in the control of magnetic domain walls in magnetically soft magnetostrictive nanostructures. The mechanical coupling of piezoelectric and magnetostrictive materials is investigated as a method of controlling the strain in the magnetic mate…
در این پژوهش یک سری از کاتالیزورهای Pt/W-Zr-HMS به منظور استفاده در واکنش ریفرمینگ با نسبتهای مولی متفاوت از Si/Zr تهیه شد و سطح آنها با استفاده از تهنشست WO3 اصلاح گردید. کاتالیزورهای تهیهشده با استفاده از روشهای XRD ،NH3–TPD، جذب شیمیایی H2 و جذب نیتروژن شناسایی شد. اثر مقادیر مختلف زیرکونیم بر فعالیت و گزینشپذ…
Contrairement aux laitiers de hauts fourneaux qui sont volumétriquement stables et faciles à utiliser en construction routière notamment, les laitiers d’aciérie contiennent de la chaux libre non hydratée en proportion variable qui peut occasionner leur expansion. Ainsi, afin d’envisager une exploitation maîtrisée de c…
Regulation of cellular processes by post‐translational modification of proteins is well known throughout the phylogeny. Phosphorylation/dephosphorylation of a given protein in bacteria is often controlled by Eukaryotic‐type serine/threonine kinases and cognate phosphatases. Similarly bacterial proteins are also govern…
This study was carried out to investigate the effect of W substitution on the precipitation behavior of χ and σ phases in super duplex stainless steel. The χ phase was precipitated at the interface of ferrite / austenite phases and inside the ferrite phase at the initial stage of aging. With an increase in the aging t…
Storage tank merupakan bagian penting dari industri pembangkit listrik. Umumnya storage tank terbuat dari baja. Baja merupakan bahan yang sangat rentan terhadap korosi. Korosi pada storage tank merupakan kerusakan material logam, yang merupakan hasil dari reaksi kimia atau elektrokimia dengan lingkungannya. Proses kor…
In recent years, the service life of Polymeric Insulators is the major part in the electrical field distribution. This paper illustrates electric field and potential distribution in composite insulators under dry conditions using charge simulation method. Electric field is calculated for 500KV both AC and DC line insu…
Pipa dalam industri minyak dan gas berfungsi sebagai pendistribusi aliran minyak melalui proses pengolahan hingga menjadi minyak siap jual. Namun jika terjadi kegagalan pada komponen ini akan berakibat fatal pada perusahaan migas itu sendiri. Penelitian ini akan menjelaskan tentang analisis kegagalan pipa elbow 180 o…
Mes sincères et amicales remerciements à Sébastien Rifflart (Total), sans qui ce projet ne serait demeuré qu'un projet de recherche de quelques mois.Grâce à sa vision des retombées potentielles des résultats préliminaires de ce premier projet de recherche, une maîtrise, un brevet et une thèse sont nés.Je remercie égal…
Proses pelorodan (pelepas Iilin) Iilin pada kain batik sutera umumnya dapat menggunakan kanji, natrium silikat, dan bensin. Penggunaan kanji biasanya digunakan pada kain katun. Jika digunakan pada kain sutera hasilnya kurang sempurna dan menyebabkan kain sutera berkerut. Sedangkan penggunaan natrium stlikat selain dap…
Incorporation of light metal matrices with amorphous alloy/metallic glass particles as reinforcements is an emerging research topic. In the present work, pure Al has been reinforced with amorphous Ni60Nb40 particles. The microwave-assisted two-directional rapid sintering technique has been used to produce these novel…
در این پژوهش، از سه ماده پلیمری فعال سطحی PVA ، P123 و PEG برای ساخت منیزیم اکسید در شرایط به طور کامل یکسان با روش هم رسوبی استفاده شده است. نمونه های تهیه شده با روش های XRD، BET و SEM مورد ارزیابی قرار گرفته اند. نتیجهها نشان می دهد که ماده فعال سطحی اثر مثبتی بر روی مساحت سطح و اندازه حفره های منیزیم اکسید…
A novel blue-green-emitting phosphor Gd4.67SiO13:Tb3+ has been synthesized by a conventional high temperature solid-state method at 1350 °C for 6 h. X-ray diffraction and photoluminescence spectra were used to characterize the as-synthesized phosphor. The excitation spectrum is composed of a broadband and two sharp pe…
All materials and devices tend to degrade with time. For this reason, reliability physics is of great theoretical and practical importance. Reliability investigations generally start with measuring the degradation rate for a material/device under stress and then a modeling of the time-to-failure versus the applied str…
A novel approach for estimating variation in the TDDB failure time is reported. The results for structures with Dual Damascene copper-based metallization and a low-k dielectric material demonstrate that variation in the initial current at stress reasonably predicts variation in the TDDB failure time. Moreover, the met…
In this study we look at the correlation between TDDB lifetime, in the presence of intentionally introduced H2O and top surface damage for different ILD materials using a robust liner. The activation energy for the movement of loosely bound physi-adsorbed H2O has been obtained using AC loss measurements. We also explo…
Here, we discuss experimental and theoretical studies of nondiffusive thermal transport, which occurs when geometrical length scales are comparable to energy carrier mean free paths (MFPs). We expand upon a previous study that emphasizes the importance of nondiffusive thermal transport in resistive-switching random ac…
A continuous down-scaling of BEOL pitch for advanced process technologies has drastically increased the resistance of Cu interconnects, which brings up a concern of a series resistance effect or IR drop within metal electrode during high voltage TDDB stresses. For accurate TDDB lifetime projections at operating voltag…
The voltage-current characteristics and electroluminescence of a light-emitting-diode (LED) n /(3C-SiC)– p / C DIAMOND heterostructure with white glow without phosphor created on the basis of diamond film grown by the CVD method on n /(3C-SiC) substrates with a doped level of (5–8) × 10 17 cm –3 are considered It is s…