Materials Literature
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Research Papers Analysis of Scuffing Temperatures With Considerations of Wear J. W. Kannel, J. W. Kannel Battelle Columbus Division, Columbus, Ohio 43201 Search for other works by this author on: This Site PubMed Google Scholar S. A. Barber S. A. Barber Battelle Columbus Division, Columbus, Ohio 43201 Search for other…
In order to clarify yarn motion in an interlacer, we take photographs of yarns during process by using a high-speed cine camera, input time series data of yarn positions to a microcomputer by using a digitizer and analyze them.Results obtained are as follows.(1) The position where opening part is processed is limited…
Description Temporarily out of stock; will ship by July 2011. This two-volume set is a collection of research results of radiation effects in structural materials and nuclear fuels. Complex topics are covered in detail with supporting evidence. Volume I — 50 papers on: microstructures; gas effects; radiation-induced s…
This study deals with nonlocal, homogeneous, isotropic, linear thermoelasticity. The field equations are introduced in a suitable form and a class of initial boundary-value problems is defined. A theorem of work and energy and a reciprocal theorem are generalized for the nonlocal case, and two variational principles c…
The economic life of airframes is largely determined by widespread initiation and growth of fatigue cracks at low stress intensities. Any factor reducing the low stress-intensity fatigue damage rate could, if controllable, increase the structural durability. One such factor is corrosion fatigue crack retardation and a…
High temperature IR spectroscopy is a rapid tool to identify morphological features,, at least qualitatively. This technique has been used in present work to study phase transitions, mesomorphous crystallinity, effect of branching, and effect of telogens, in both tubular and autoclave LDPE resins. With increasing temp…
Most electromagnetic field computation programs are generally able to take into account the characteristics of magnetic materials of two kinds: (1) materials with linear characteristics which may be isotropic and possibly with residual magnetization. (2) soft isotropic nonlinear materials. The implementation of these…
A new family of materials, nano-structure controlled(NANOCON) metals with very high resistivity of 1011Ωcm, has been developed. Nanocon metals compose with 95-99.5% metals and 0.5-5% dielectrics and have a porosity of less than 1%. Pure metal powders are coated with very thin dielectric films of an order of 10nm. Coat…
A novel impact bend test procedure is described for determining the dynamic fracture-initiation toughness, KId, at a loading rate KI of the order of 106MPa√m/s. The split Hopkinson pressure bar technique was used to measure dynamic loads applied to a fatigue-precracked bend specimen. The dynamic stress intensity facto…
The 57Fe Mössbauer spectroscopy has been used to study the liquid crystalline disubstituted derivatives of ferrocene (FLCn). Characteristic Debye temperatures, order parameters, intramolecualar and lattice contributions to the nuclear vibrational anisotropy have been obtained for these compounds and 7% (weight) soluti…
Complex material parameters (piezoelectric coefficient d31, elastic s11 E, and the dielectric constant K33) of the relaxor ferroelectric ceramic (1−x) Pb(Mg1/3Nb2/3)O3-xPbTiO3(x =.07) with 1% La (lanthanum) were measured as a function of bias field using a bar resonator. The values of the dielectric and piezoelectric…
Polymeric amines, containing the monomeric unit –CH2–CH2–NH– (PEI or LPEI). are versatile ligands, forming complexes in aqueous solutions with many labile metal ions, even at relatively low pH, due to the strong chelate effect. The mean distances between the metal centers within a polymer chain is small in solutions w…
F.c.c. metal single crystals are numerically modeled to simulate evolution of the deformation band. The models include simplified inhomogeneities in resistance to slip deformation. Slip deformation in the models is examined by a finite element method. Analysis results show that slip deformation of some part of the spe…
Rates of He release from two kinds of simulated high-level radioactive waste glasses were measured in the temperature range from 573 to 753K by a mass spectrometric method. Diffusion coefficients of He in the glasses were determined from the fractional release data. The diffusion coefficients were given as a function…
We present a new algorithm for the generation of quasicrystalline structures. It is related to the cut and projection method, but allows a direct generation of the structure in the « physical » space E. The orthogonal space site selection is replaced by a direct check in a periodic array of « acceptance » regions in E…
Author: Stratmann, M.; Genre: Journal Article; Published in Print: 1990; Title: The Atmospheric Corrosion of Iron - A Discussion of the Physico-Chemical Fundamentals of this Omnipresent Corrosion Process
Inhibition of the corrosion of carbon steels by lithium molybdate in bellow 21.4mol/kg-H2O alkaline lithium bromide aqueous solution was investigated in glass sealed tube at various temperatures. Lithium molybdate gives an excellent corrosion inhibition for carbon steel even at a concentration as low as 0.003mol/kg-H2…
The "back-attack" phenomenon was suspected to be an important factor in tuyere refractory erosion, so the characteristics of submerged high speed gas jet were investigated in a water model, and the mechanism of the back-attack generation was clarified.1) The submerged gas jet forms a cavity in the bath, but occasional…
Abstract Des cristaux de KZr 2 (AsO 4 ) 3 ont été préparés par la méthode de flux. L'étude cristallographique de ce composé a montré que celui‐ci cristallise dans le système rhomboédrique avec les paramètres a = 9,028(1) Å; c = 24,399(3) Å. d = 3,694 g/cm 3 ; Z = 6 groupements formulaires par maille, le groupe d'espac…
The magnetic properties of cast and hot-rolled Pr/sub 17/Fe/sub 77.5/B/sub 4/ M/sub 1.5/ (M=Cu, Ga, Ag, Al, In, and Pb) alloys were investigated in order to explore the role of additive elements in improving the magnetic properties in the Pr-Fe-B system. It is found that Ga and Ag additions have an effect similar to t…