Materials Literature
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An analytical study was conducted to determine the feasibility of employing solar energy assisted thermoelectric (TE) cooling technology in automobile air conditioners. The study addressed two key issues—power requirements and availability of thermoelectric materials. In this paper, a mathematical model was developed…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSpecific adsorption of saccharides by dealuminated Y-zeolitesChristoph Buttersack, Wolfgang Wach, and Klaus BuchholzCite this: J. Phys. Chem. 1993, 97, 46, 11861–11864Publication Date (Print):November 1, 1993Publication History Published online1 May 2002Published inissue 1 N…
This work investigates the intergranular corrosion of a sensitized Type 430 stainless steel in 1 N . Once the grain boundary groove is formed by dissolution of the Cr‐depleted material, a second form of localized corrosion commences within minutes and replaces the Cr‐depletion mechanism. The second‐mechanism attacks b…
Abstract Extensive surface‐enhanced Raman (SER) spectra of acridine and acridinium ions, taken as probes of DNA intercalating agents, were investigated in colloidal silver sols. From comparison of the SER and Fourier transform near‐IR Raman spectra, it is confirmed that acridine is adsorbed on the metal surface via it…
Abstract The energy balance model presented in Part I is applied here to data taken from the literature. Care was taken to choose well‐characterized systems to give a true test of the model's predictive character, rather than its ability to curve‐fit the data. The effects of concentration, particle size, strain rate,…
We study the electronic and Fourier-spectral properties of one-dimensional generalized Fibonacci lattices generated by the stacking rule ${\mathit{S}}_{\mathit{l}+1}$=${\mathit{S}}_{\mathit{l}}^{\mathit{n}}$${\mathit{S}}_{\mathit{l}\mathrm{\ensuremath{-}}1}^{\mathit{m}}$ with positive integers n and m, where ${\mathit…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe cis-influence of hydroporphyrin macrocycles on the axial ligation equilibria of cobalt(II) and zinc(II) porphyrin complexesJack S. Summers and Alan M. StolzenbergCite this: J. Am. Chem. Soc. 1993, 115, 23, 10559–10567Publication Date (Print):November 1, 1993Publication H…
Abstract In a previous study, the mechanism of EPM peroxide vulcanization in the presence of various aromatic bis (allyl)esters was elucidated. It was concluded that the elastomer-coagent blend was phase separated and that during vulcanization chemical crosslinks are formed between the elastomer matrix and coagent dom…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPlasma polymerization of tetramethylsilaneJ. L. C. Fonseca, D. C. Apperley, and J. P. S. BadyalCite this: Chem. Mater. 1993, 5, 11, 1676–1682Publication Date (Print):November 1, 1993Publication History Published online1 May 2002Published inissue 1 November 1993https://pubs.a…
Photoluminescence and thermoluminescence in BaSO4:Eu is reported. In earlier works, divalent Eu has been studied in BaSO4. In the present work Eu was incorporated as in predominantly Eu3+ or Eu2+ form. It is shown that RE3+ ↔ RE2+ conversion or RE2+ ↔ RE+ conversion is not an integral part of gamma induced TL. Eu3+ ↔…
Resin bonded magnets are prepared from Sm/sub 2/Fe/sub 17/N/sub x/ compounds and their magnetic properties and stabilities are investigated. The magnetic properties of the Sm/sub 2/Fe/sub 17/N/sub 3/ fine powder are: B/sub r/=13.4 kG, H/sub ci/=8.6 kOe, and (BH)/sub max/=30.3 MGOe. The bonded magnets show (BH)/sub max…
We propose a mechanism for the long range interaction needed to explain the occurance of a “Devil's staircase” in smectic C* materials at the ferroelectric antiferroelectric transition point.
The optical transmittance of pressureless sintered and of hot isostatically pressed (HIPed) mullite ceramics was studied in the near infrared (NIR), visible light (VIS), and the ultraviolet (UV) spectrum ranges. Both processing methods provided fine‐grained microstructures (mean grain size of 5–10 μm) with equiaxed gr…
A vibratory-type cavitation test rig was constructed to study the effect of polarizing currents applied to a cavitating body. The generation of gas by electrolysis reduced mechanical damage suffered by a cavitating body because of bubble collapse cushioning. However, the net effect on overall damage depended on severa…
Abstract The title complexes, [Yb2(obPc)3] (1) and [Dy2(obPc)3] (2) (H2obPc = 2,3,9,10,16,17,23,24-octabutoxyphthalocyanine), were prepared. Their absorption spectra in CH2Cl2 and in benzene and cyclic voltammograms in CH2Cl2 were measured. The electromism of the CH2Cl2 solutions of 1 and 2 was observed in oxidation.…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA new hydrotalcite-like compound containing vanadium(3+) ions in the layersVicente Rives, Francisco M. Labajos, Maria A. Ulibarri, and Pilar MaletCite this: Inorg. Chem. 1993, 32, 23, 5000–5001Publication Date (Print):November 1, 1993Publication History Published online1 May…
Abstract Infrared reflectance and Raman spectra of LBO crystals were recorded at room temperature and liquid nitrogen temperature. The vibrational modes are classified by the factor group analysis method and the spectral bands are assigned to vibrations of the (B 3 O 6 ) 3− ring and BO 4 tetrahedra.
Stress corrosion cracking of type 304 and type 316 austenitic stainless steels has been investigated as a function of chloride ion concentration in 0.82 kmol m−3 pure sulfuric acid solution at 353 K under a constant stress of 392 MPa by using a constant load method. At a concentration of up to approximately 2 × 10−2 k…
The evolution of x-ray photoelectron and ultraviolet spectra and their modification at the phase transformation B2-B19(B19') of equiatomic TiM and quasibinary Ti(Ni,M) compounds, where M stands for Fe, Co, Ni, Pd, Pt, Au, and Cu, are presented. Investigation of x-ray photoemission spectroscopy includes valence bands,…
Transparent glass‐ceramics containing ZnAl 2 O 4 :Co 2+ and LiGa 5 O 8 :Co 2+ crystallites have been prepared by heat treatment of glasses in the zinc aluminosilicate and lithium gallate silicate systems, respectively. Crystalline LiGa 5 O 8 was already precipitated in an as‐prepared specimen, while ZnAl 2 O 4 :Co 2+…