Materials Literature
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Air was gradually supplied through a small vertical hole to form a single bubble on the upper surface of a horizontal flat plate of poor wettability. The bubble grew with an increase in the supplied air volume. The growing behavior of the bubble was observed with a CCD camera. The shape and size of the bubble on the u…
Wilhelmy technique was used to measure the single fiber advancing contact angle of AKD and ASA sized pulp fibers. When sizing performance was fully developed, the advancing contact angle of AKD sized pulp fiber was 85°, while the ASA sized pulp fiber was 95°. Waterdrop absorption measurement also indicated that ASA wa…
NdFeB sintered magnets with the addition of Ag were prepared by blending hydrogen decrepitated NdFeB powder with Ag powder during ball milling. It was found that small additions of Ag powder increases the coercivity of the magnets without reducing the remanence. A microstructure study showed that oxygen content in the…
In order to clarify the size effect of an interlacer, we measured air pressure distributions on the yam duct wall of interlacers with various sizes of both yarn duct and air jet nozzle for a wide range of the supplied air pressure in a rectification tank. The pressure in the yarn duct does not always increase with the…
This DOI is not currently attached to any metadata records. DOIs can’t actually ever be deleted (they’re persistent), but sometimes our members create DOIs in error. We do have a process to approximate deletion which we follow only in rare cases where the DOI has been genuinely created in error, and most crucially, if…
Poly(isoprene-co-isobutylene) (IIR or butyl) and chlorinated poly(isoprene-co-isobutylene) (CIIR or chlorobutyl) compounds containing combinations of zinc dimethyldithiocarbamate [Zn2(dmtc)4], tetramethylthiuram disulfide (TMTD), sulfur, and ZnO were vulcanized at 150°C, the reaction was stopped at various points, cro…
The types,preparation,properties,characterizations,applications and prospects of porous ceramics are reviewed in this article.
Dynamic loading of brittle materials is related to many applications, including explosive excavation of rocks, design of ceramic armor, meteor impact on spacecraft windows, particle damage to turbine blades, etc. When brittle materials are exposed to impact or explosive loading, inelastic deformation, fracture, and fr…
Low phonon energy non-fluoride glasses are potentially useful hosts for a 2.7µm erbium doped fiber laser. A characterization of the optical properties of Er 3+ doped and Er 3+ , Pr 3+ codoped bulk samples of heavy metal oxide and chalcogenide glasses is presented. Absorption spectra have been measured and energy level…
An extensive study of the kinetics of the iodide titanium process, performed in a flow system by the thermal decomposition of titanium tetraiodide over a tungsten filament substrate, is presented in this paper. The influence of the substrate temperature, , and reactant pressure, , on the process rate has been analyzed…
Thin‐film solar cells from polycrystalline silicon on inexpensive nonsemiconductor substrates are an option for reducing costs. We have investigated the deposition of silicon layers on ceramic substrates. The aim was to manufacture high‐quality polycrystalline silicon films with a thicknesses up to 40 μm. The experime…
High-melting-point polymers with heterocyclic backbone units were synthesized from common amino acids. Acids were first converted to methyl ester salts and then were dimerized to form diketopiperazines, which were polymerized in solution. Aspartic acid, serine, lysine, glycine, and tyrosine were used as starting mater…
Description This unique volume explores the use of various standardized methods for specifying and controlling the compaction of soils for engineered constructed earth fills. Topics address the historical background, current state-of-the-art practices, case histories of challenging situations, new concerns regarding a…
The seasonal dynamics of cyanobacterial and diatom assemblages in 11 water bodies along a meso- to hypertrophic gradient were compared. The cyanobacterial and diatom communities are charac- terised according to representative species of each algal class, selected by data reduction following prin- cipal component analy…
The effect of adding salt to three different micellar chiral nematic phases, and the effect of structure of two chiral dopants, hexahydromandelic acid (HHMA) and mandelic acid (MA), on two achiral nematic host phases have been investigated. The addition of salt to the chiral nematic phases increased the pitch length,…
Absorption of H2 is a sensitive technique for the study of the effects of impurity gases on H2 chemisorption by Pd because chemisorbed is an intermediate for absorption. Since large amounts of hydrogen are absorbed by Pd, the absorption can be readily followed experimentally. The rates of H2 absorption by Pd foil in t…
In order to determine trace amounts of sulfur in a high-purity iron with the infrared absorption method after combustion, it is necessary to decrease and stabilize sulfur blank on an analytical procedure. Sulfur blank means sulfur species as contaminants which are contained in a reagent, in a ceramic ware and absorbed…
Composite coatings containing beryllium are prepared by plasma-enhanced chemical vapor deposition at a substrate temperature as low as 250°C in a radio-frequency-induced cylindrical plasma reactor. Diethylberyllium is used as the precursor together with hydrogen as a coreactant gas. These coatings are characterized by…
Block copolymers are well-known for their large number of microphase morphologies on mesoscopic length scales. After a short review of the different morphologies observed in binary block copolymers and ternary triblock copolymers, the self-assembling in blends of different block copolymers into common superlattices is…
A heavy-duty system of high performance, RIETAN-2000, has recently been developed for Rietveld refinement, Le Bail refinement, whole-pattern fitting based on a maximum-entropy method (MEM), and individual profile fitting. An original feature called partial profile relaxation is applicable to (nearly) isolated reflecti…