Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
Magnetization measurements reported for ${\mathrm{Fe}}_{3\mathrm{\ensuremath{-}}\mathit{x}}$${\mathrm{Ti}}_{\mathit{x}}$${\mathrm{O}}_{4}$ in the composition range 0\ensuremath{\le}x\ensuremath{\le}0.55 were used to determine the magnetic-anisotropy coefficients as a function of x and of temperature. Magnetic measurem…
(1991). Statistical Methods in Accelerated Life Testing. Technometrics: Vol. 33, No. 3, pp. 360-362.
This is the first in a pair of papers describing the development of the computational corrosion analysis accomplished at the Naval Underwater Systems Center and the University of Connecticut over the past decade. This paper outlines the mathematical representation of the corrosion problem to be solved in terms of the…
An analysis is presented of two schemes which have been proposed for the determination of the temperature dependence of homogeneous crystal nucleation rates in glasses via DTA measurements. The first method is based upon the postulate that the inverse of the temperature at which the DTA crystallization rate is maximum…
The growth of VO2 and V2O3 thin films by reactive sputtering has been investigated. Previously reported studies of such thin films have often presented ambiguous results concerning the precise nature of the layers produced. A thorough and comprehensive characterization program including x-ray diffraction, scanning ele…
Abstract In order to render the surface of silicone hydrophilic without changing its bulk properties, acrylamide was grafted onto its surface. A silicone sheet was first treated with a corona discharge in air to introduce peroxides onto the surface. The concentration of peroxide introduced to the surface was determine…
The synthesis and dopaminergic activity of a series of C3 and nitrogen-substituted 1-(aminomethyl)-3,4-dihydro-5,6-dihydroxy-1H-2-benzopyrans (isochromans) is described. The synthesis of the compounds was stereospecific for the 1,3 cis isomer, and the enantioselective synthesis of both enantiomers of one of the analog…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTResonance Raman characterization of ferric and ferryl porphyrin .pi. cation radicals and the FeIV:0 stretching frequencyShinji Hashimoto, Yasuhisa Mizutani, Yoshitaka Tatsuno, and Teizo KitagawaCite this: J. Am. Chem. Soc. 1991, 113, 17, 6542–6549Publication Date (Print):Aug…
Abstract Meadowfoam dimer acids have been prepared in a thermal clay‐catalyzed reaction. Reaction conditions have been optimized, and yields of 44% were obtained with 2% water and 6–8% of an acid‐washed montmorillonite clay, based on the meadowfoam fatty acids. Purity of the distilled dimer acids was 79–89% with most…
Advances in machine learning have impacted myriad areas of materials science, such as the discovery of novel materials and the improvement of molecular simulations, with likely many more important developments to come. Given the rapid changes in this ...Read More
Single‐phase, cubic solid solutions of baseline composition 25% Y 2 O 3 —75% Bi 2 O 3 with and without aliovalent dopants were fabricated by pressureless sintering of powder compacts. CaO, SrO, ZrO 2 , or ThO 2 was added as an aliovalent dopant. Sintered samples were annealed between 600° and 650°C for up to 4000 h. S…
Polycrystalline, tetragonal ( t ′) zirconia samples containing 3 and 4 mol% yttria were fabricated by annealing pressureless‐sintered samples in air at ∼ 2100°C for 15 min. The grain size of these fully tetragonal samples was on the order of 100 to 200 μm. Domain structure of the samples and of a 3‐mol%‐yttria‐doped t…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe influence of solvent polarity of the nonradiative decay of exciplexesP. Van Haver, N. Helsen, S. Depaemelaere, M. Van der Auweraer, and F. C. De SchryverCite this: J. Am. Chem. Soc. 1991, 113, 18, 6849–6857Publication Date (Print):August 1, 1991Publication History Publis…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMononuclear and dinuclear ruthenium complexes with triazole containing ligands; fine-tuning of the spectroscopic propertiesRonald Hage, Jaap G. Haasnoot, Jan Reedijk, Renyi Wang, and Johannes G. VosCite this: Inorg. Chem. 1991, 30, 17, 3263–3269Publication Date (Print):Augus…
The Eu3+ and Y3+ complexes of a series of N,N'-bis(carboxymethyl) macrocyclic ether bis(lactone) ligands derived from ethylenediaminetetraacetic acid (EDTA) were characterized in solution by using Eu3+ laser-induced luminescence and 1H and 13CNMR spectroscopy. The complexation of EDTA was also studied for comparison p…
Crystalline \ensuremath{\alpha}-boron consists of ${\mathrm{B}}_{12}$ icosahedra in a rhombohedral lattice of R3\ifmmode\bar\else\textasciimacron\fi{}m space-group symmetry. We here carry out a classical force-field analysis of the lattice vibrations. The q=0 Brillouin-zone vibrations are treated as those of a ${\math…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA molecular clip with allosteric binding propertiesRint P. Sijbesma and Roeland J. M. NolteCite this: J. Am. Chem. Soc. 1991, 113, 17, 6695–6696Publication Date (Print):August 1, 1991Publication History Published online1 May 2002Published inissue 1 August 1991https://pubs.ac…
The third-order optical susceptibilities χ 1111 (3) (-3ω; ω, ω, ω) s f o r t w o d i f f e r e n t p h a s e s i n v a n a d y l a n d t i t a n y l p h t h a l o c y a n i n e ( V O P c a n d T i O P c ) v a c u u m - d e p o s i t e d t h i n f i l m s a r e d e t e r m i n e d b y o p t i c a l t h i r d - h a r m…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEPR and NMR study of the spin-crossover transition in bis(4,4'-bi-1,2,4-triazole)bis(thiocyanato)iron hydrate and bis(4,4'-bi-1,2,4-triazole)bis(selenocyanato)iron hydrate. X-ray structure determination of Fe(4,4'-bi-1,2,4-triazole)2(SeCN)2.cntdot.H2OAndrzej Ozarowski, Yu Sh…
A novel compound formed by copper(II) and a nitronyl nitroxide radical of formula [Cu(hfac)2]3(NITpPy)2 (where hfac = hexafluoroacetylacetonato and NITpPy = 2-(4-pyridyl)-4,4,5,5-tetramethylimidazoline-1-oxyl 3-oxide) was synthesized. It crystallizes in the monoclinic system, space group C2/c, with a 36.540 (9) angstr…