Materials Literature
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Cellulose nanomaterials are naturally occurring with unique structural, mechanical and optical properties. While the paper and packaging, automotive, personal care, construction, and textiles industries have recognized cellulose nanomaterials' potential, we suggest cellulose nanomaterials have great untapped potential…
We present Hamiltonians parametrized by ab initio density functional theory calculations to describe the dispersion of the valence and conduction bands at their extrema (the K , Q , Γ , and M points of the hexagonal Brillouin zone) in atomic crystals of semiconducting monolayer transition metal dichalcogenides (TMDCs)…
High-power Na-ion batteries have tremendous potential in various large-scale applications. However, conventional charge storage through ion intercalation or double-layer formation cannot satisfy the requirements of such applications owing to the slow kinetics of ion intercalation and the small capacitance of the doubl…
The widespread use of thermoelectric technology is constrained by a relatively low conversion efficiency of the bulk alloys, which is evaluated in terms of a dimensionless figure of merit (zT). The zT of bulk alloys can be improved by reducing lattice thermal conductivity through grain boundary and point-defect scatte…
Potassium dihydrogen phosphate (KDP) crystal is widely used in the manufacture of electro-optic components. However, the residues such as polishing liquid, abrasives and chips on KDP crystal surface influence severely the surface quality. In this study, the low-pressure liquid jet and air jet are used to clean the res…
Microbolometers are the most widely used detectors in long-wave infrared uncooled thermal imagers. An optical cavity is required within a microbolometer structure to increase its optical absorption. In this work we present a detailed study on the design and optimization of a microbolometer optical cavity using Essenti…
The kinetics and mechanism of the adsorption and dissociation of nitrogen monoxide (NO) into N 2 and O 2 molecules on a tungsten oxide nanocrystalline surface have been studied. Calculations were carried out using the framework of density functional theory (DFT) with the ONIOM method at the (B3LYP/LANL2DZ:UFF) level.…
In the present study, the microstructure of Mg-5Si alloys with tin, aluminum and manganese was investigated. The microstructure of Mg-5Si alloy consists of the primary coarse Mg 2 Si phase, α-Mg solid solution and eutectic α-Mg + Mg 2 Si in which the eutectic Mg 2 Si phase solidifies in the form of Chinese script part…
Rapid, accurate and flexible reliability characterization capabilities are important tools in process development and monitoring. Electromigration evaluation has largely relied on packaged test structures given the need for high temperatures to provide sufficient acceleration. However, several Wafer-Level (WL) electro…
Process sensitivity of IMD TDDB in a vertical natural capacitor (VNCAP) structure was evaluated in this paper. Among others, CMP slurry and wet clean chemical were found to have higher level of interaction impacting TDDB performance. This enables proper process optimizations, such as reduction in the Cu+ concentration…
Thickness-dependent dielectric electrical and reliability characteristics of dense and porous low-k films were investigated in this study. Experimental results obtained using metal-insulator-silicon (MIS) structures reveal that the dielectric strength and dielectric breakdown time of low-k dielectric films are inverse…
Abstract Tapiaite (IMA2014-024), Ca5Al2(AsO4)4(OH)4·12H2O, is a new mineral from the Jote mine, Tierra Amarilla, Copiapó Province, Atacama, Chile. The mineral is a late-stage, low-temperature, secondary mineral occurring with conichalcite, joteite, mansfieldite, pharmacoalumite, pharmacosiderite and scorodite in narro…
The effects of Ho and Ni doping alone and of co-doping with Ho and Ni on the structural, electrical and ferrolectric properties of BiFeO3 thin films are reported. Pure BiFeO3, (Bi0.9Ho0.1)FeO3, Bi(Fe0.98Ni0.02)O3−δ , and (Bi0.9Ho0.1)(Fe0.98Ni0.02)O3−δ thin films were prepared on Pt(111)/Ti/SiO2/Si(100) substrates by u…
Adsorption behavior of four typical thiadiazole derivatives as corrosion inhibitors on copper surface both in vacuum and aqueous media, including 1,3,4-thiadiazole-2,5-mercapto (T-SH), (1,3,4-thiadiazole-2,5-diyl) bis (sulfanol) (T-OH), S,S'-(1,3,4-thiadiazole-2,5-diyl) bis (O-hydrogen carbonothioate) (T-COOH) and O,O…
The Landauer - Datta - Lundstrom generalized transport model is briefly summarized. If a band structure is given, the number of conduction modes can be evaluated and, if a model for a mean-free-path for backscattering can be established, then the near-equilibrium thermoelectric transport coefficients can be calculated…
ZnO thin films were prepared by reactive DC magnetron sputtering under different working pressures. ZnO thin films prepared at 40% O2content in the mixed gases under the working pressure of 1.2 Pa exhibited excellent properties, such as high transmittance, high band-gap energy (3.27 eV), and good crystallinity with c-…
For characterizing the electromigration (EM) reliability of advanced interconnects, we propose a constant voltage approach (CV-EM) as an alternative method to traditional constant current tests (CI-EM). As extremely scaled interconnects require very thin barriers, their current shunting capabilities will be reduced. W…
In the present study, AISI 1020 plain carbon steel was surface alloyed with preplaced 50%Fe-10%W-40%B alloying powders using a tungsteninert gas (TIG) heat source. Microstructure, hardness, and wear resistance of the surface alloyed layer were investigated. Following the surface alloying, conventional characterization…
Plastics Engineering is the official publication of the Society of Plastics Engineers (SPE). We provide plastics professionals with a wealth of information about machinery, technological advances, materials innovations, sustainability, and more.
We propose a new conductivity model of multi-walled carbon nanotube (MWCNT) interconnects considering the influence of temperature. For each shell of MWCNT interconnects, it may present the property of ballistic transport or may suffer from acoustic photo and optical phonon (OP) scattering depending on their mean free…