Materials Literature
文献浏览
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。
Ticker / Ticker
Titelei
Grenzflachenrheologie mit deformierbaren Tropfen in rheometrischen Stromungen / Interfacial Rheology of Deformable Droplets in Viscometric Flows
Call for Papers
Druckschriften / Literature
Zweiter Rheology-Preis/Second Rheology Prize
Profile / People
Referate / Abstracts
lmpressum / Masthead
Thixotrope Erholung der Struktur von Pigmentdispersionen / Thixotropic Recovery of the Structure of Pigment Dispersions
Third-order Nonlinear Optical Properties of Ethylenic Tetrathiafulvalene Derivatives
The degenerate four-wave-mixing method is used to measure the second-order hyperpolarizabilities γ of new soluble tetrathiafulvalene (TTF) derivatives. For each material, the study of solutions at various concentrations leads to the choice of an optimum solution: a compromise between ‘low-nonlinearity low-loss’ and ‘h…
Crystal structure of the antiferroelectric perovskite Pb2MgWO6
Lead magnesium tungstate, Pb2MgWO6, Mr = 718.54. Phase I: cubic, Z = 4, Fm3m, a = 8.0058 (4)A, V = 513.1 (2) A 3, Dx = 9.30 Mg m -3 at 350 K, final Rwp = 4.5 and 7.7%, RBragg = 2.9 and 5.7% for neutron and Xray powder data, respectively. Phase II: orthorhombic, Pmcn (Pnma), Z = 4, a = 7.9440(4) and 7.9041 (3), b = 5.6…
Time-temperature superposition and linear viscoelasticity of polybutadienes
International audience
Combined Neutron and X-ray Powder Diffraction Study of Zeolite Ca LSX and a 2H NMR Study of Its Complex with Benzene
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCombined Neutron and X-ray Powder Diffraction Study of Zeolite Ca LSX and a 2H NMR Study of Its Complex with BenzeneGerardo Vitale, Lucy M. Bull, Russell E. Morris, Anthony K. Cheetham, Brian H. Toby, Charles G. Coe, and James E. MacDougallCite this: J. Phys. Chem. 1995, 99,…
Relationships between Hysteresis Measurements and the Constituent Properties of Ceramic Matrix Composites: II, Experimental Studies on Unidirectional Materials
The use of hysteresis loop measurements for assessing the constituent properties of unidirectional CMCs is evaluated, using basic theory described in a companion paper. Results are obtained on SiC/CAS and SiC/SiC composites. These materials exhibit very different hysteresis characteristics, reflected in differences in…
Coupled Burgers equations: A model of polydispersive sedimentation
This paper compares theory and experiment for the kinetics of time-dependent sedimentation. We discuss noninteracting (apart from hydrodynamic interaction) suspensions and colloids which may exhibit behavior similar to the one-dimensional motion of compressible gas. The velocity of sedimentation (or creaming) depends…
Relationship between Microstructure, Toughening Mechanisms, and Fracture Toughness of Reinforced Silicon Nitride Ceramics
Different microstructures in Si 3 N 4 ceramics containing Y 2 O 3 and Al 2 O 3 as sintering additives were prepared by two‐step sintering. Pull‐out and elastic bridging were most frequently observed as the toughening mechanisms in samples with fine‐grained microstructures having needlelike β‐Si 3 N 4 grains with diame…
Optical properties of cubic and hexagonal CdSe
The complex dielectric function, ε(E)=ε1(E)+iε2(E), of hexagonal CdSe has been measured by spectroscopic ellipsometry in the photon-energy range between 1.2 and 5.3 eV at room temperature. The measured spectroscopic-ellipsometry data are analyzed on the basis of a simplified model of the interband transitions. The mod…
Relationships between Hysteresis Measurements and the Constituent Properties of Ceramic Matrix Composites: I, Theory
A methodology for assessing constituent properties of ceramic matrix composites (CMCs) from stress/strain curves is developed. The procedures demonstrate how the properties of the interface and the misfit strain can be related to the unload/reload hysteresis and the permanent strain. The approach is illustrated in com…