Materials Literature
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The metal-ferroelectric-metal-insulator-semiconductor field-effect transistor using the Au/(Bi,La)4Ti3O12(BLT)/Pt/SrTa2O6(STA)/Si structure is prepared. The STA and BLT films are spun-casted by the sol-gel method. The equivalent oxide thickness value of the STA thin film is 5.2 nm and negligibly small hysteresis loops…
There is an increasing attention on considering detected flaw evaluation according to the ASME code on the Hungarian VVER reactor components, as most time-limited aging analyses (TLAA) related analyses being done due to the American standard. Although — because of the evident differences between the Russian and Americ…
In the title complex, {[Pr(C2O4)1.5(H2O)2] H2O}n, the Pr ion, which lies on a crystallographic inversion centre, is coordinated by seven O atoms from four oxalate ligands and two O atoms from two water ligands; further Pr—O coordination from tetradentate oxalate ligands forms a three-dimensional structure. The compoun…
The effect of surface damaged layer and Te enrichment layer of Hg1-xMnxTe on the indentation size were studied experimentally. Based on the results, the indentation size effect (ISE) of Hg1-xMnxTe were discussed using different models, including Meyer’s law, the power-law, Hays-Kendall approach and the theory of strai…
Dukovany NPP has 4 units with VVER440/213 type reactors and is in its 24th year of operation. Operational permission is valid for 30 years. Since 2004, NPP has started to prepare a LTO program which includes: • a detailed feasibility study, • an evaluation of safety aspects of LTO, • the preparation of a long-term mod…
We report optical and infrared imaging spectroscopy observations of the young binary object Orionis IRS1 A/B. The brighter component ( Ori IRS1 A) of this binary system has M1 spectral type and a mass in the range of 0.3 -0.8 M . The fainter component ( Ori IRS1 B) has a unique morphology and spectrum. The unresolved…
三菱製紙八戸工場は本州北端の太平洋岸にある八戸市の海岸沿いに位置し，パルプから紙への一貫工場として，板紙，アート紙，コート紙，上質紙等を生産する年産90万tの当社の主力工場である。抄紙機は7台（うち2台はオンコーター）を有しており，このうち2号抄紙機，6号抄紙機において，2007年8月に増速，増産，操業性改善，省蒸気を目的にミニシュープレス改造をおこなった。既設マシンへシュープレスを導入する場合，一般的なスタンダードシュープレスでは高線圧に耐えうるためにロールが大型で高重量となり，それを運搬する天井クレーンの改造，大型油圧ユニット設置など改造スペースの拡大，駆動動力の増大といった問題点がある。これらの問題点を解決した装置がミニシュ…
A combinatorial materials science method for screening potential elemental additions to mitigate tin whisker formation on Pb-free electronics is presented. This combinatorial method is demonstrated using compositional gradient libraries deposited on glass substrates. Fabrication and heat treatment of combinatorial lib…
The Keeping the Nuclear Option Open (KNOO) research consortium is a four-year research council funded initiative addressing the challenges related to increasing the safety, reliability and sustainability of nuclear power in the UK. Through collaboration between key industrial and governmental stakeholders, and with in…
Cancer is a genetic disorder and its treatment usually requires a long time and expensive diagnosis.While chemotherapy is the most conventional approach in treating most cancers, patients often suffer from undesired side effects due to various pharmacokinetic aspects.To address this issue, target-oriented drug-deliver…
A critical and detailed review of current knowledge in the field of weldment fatigue has been performed; this review covers the assessment procedures and also the foundations upon which those procedures are based. This review is part of a body of research to support the design of nuclear pressure vessel mounting; the…
Eigenvalue, eigenvector and overlap matrix of nickel halide complex of N‐allyl urea and N‐allyl thiourea have been evaluated. Our results indicate that ligand field parameters (Dq, B’ and β) evaluated earlier by electronic spectra are very close to values evaluated with the help of eigenvalues and eigenvectors. Eigenv…
Du Fe-Cr (1 à 5% de chrome) a été élaboré puis nitruré dans des conditions industrielles c.-à-d (520°C).La caractérisation par DRX a permis de tracer les profils des phases nitrures.Des calculs thermodynamiques d'équilibre de phase par le biais du logiciel ThermoCalc ont permis de tracer des courbes de profil des phas…
Abrasive particles are the key elements of chemical-mechanical polishing (CMP) slurry. α-alumina abrasive, commonly used in CMP slurry, often causes scratches in the polished surface because of its agglomeration and high hardness. In this paper, a kind of novel α-alumina/ferric oxide core-shell type abrasive was prepa…
For reducing fuel cell stack cost new materials for bipolar plates (BPs) are under development. Quality of this new BPs has to be checked. The four-points probe method is commonly used for measuring of electrical conductivity; however sample’s geometry has a strong impact on the accuracy of this method. For this reaso…
Kinetics of the title reaction (silver nano particles + thiourea) has been studied spectrophotometrically at 425 nm in presence of cationic and anionic micelles of cetyltrimethylammonium bromide and sodiumdodecyl sulphate, respectively. Silver nano size particles (yellow colour) were prepared by the reduction of silve…
成形加工時に，結晶や分子鎖がどのように変形していくのかを理解することは，優れた加工性や物理特性を与えるポリマー材料をデザインしていく上で，非常に重要かつ本質的な情報である．X 線散乱法は結晶の変形に関する情報を，中性子散乱法は分子鎖の変形に関する情報を得ることができる非常に強力なツールである．X 線散乱法においては，第三世代放射光の利用も広がり，マイクロビーム X 線やコヒーレント X 線などを利用した構造解析が発展してきているところである．一方，中性子散乱法では，ラベリング技術と流動場を与える装置の組合せにより，マイクロレオロジーの理論の検証なども進んできており，分子鎖の変形に関する理解も進展してきている．本報では，アイソタクチ…
Physical scale modeling (PSM) has been used to evaluate and design shipboard impressed current cathodic protection (ICCP) systems in several NATO countries. With the application of numerical modeling techniques for the evaluation of shipboard ICCP performance, efforts to validate numerical modeling results using PSM d…
Currently in the nuclear industry, surface contamination in the form of radioactive metal or metal oxide deposits is most commonly removed by chemical decontamination, electrochemical decontamination or physical attrition. Physical attrition techniques are generally used on structural materials (concrete, plaster), wi…
This paper describes the rapid formation of polycrystalline silicon films through seeding with silicon nanocrystals. The incorporation of seed crystals into amorphous silicon films helps to eliminate the crystallization incubation time observed in non-seeded amorphous silicon films. Furthermore, the formation of sever…