Materials Literature
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The magnetostriction of Tb single crystals has been measured from 4 to 350\ifmmode^\circ\else\textdegree\fi{}K in applied fields up to 30 kOe by strain-gage methods. The temperature dependence of the four magnetostriction constants has been determined under the assumption that the magnetic moment remains in the basal…
The magnetic behavior of very dilute (0.1%) iron impurities in Cu, Ag, Au, V, Nb, Ta, Mo, W, Rh, and Pt has been studied by the M\"ossbauer effect in ${\mathrm{Fe}}^{57}$ for applied fields to 62 kOe and temperatures from 0.5 to 300\ifmmode^\circ\else\textdegree\fi{}K. For V, Nb, and Ta the hyperfine field at the impu…
It has been possible in favorable cases to measure the intensities of the infrared bands of CO adsorbed on different ZnO and supported Cu, CuO, and Pt catalyst surfaces. For weak, reversible adsorption at room temperature, giving rise to the bands in the frequency region 2132–2212 cm−1, a unique correlation between in…
A new empirical intermolecular potential-energy function with two adjustable parameters is developed. When due allowance is made for nonpairwise additivity of intermolecular energy this function is capable of interpreting both the second and third virial coefficients and the solid-state properties of simple substances.
Abstract A dislocation theory of cracks, which takes account of elastic-plastic and other non-linear modes of deformation, is used to discuss the geometrical and physical conditions for unstable fracture. The importance of discontinuous cracking in providing an unstable mode of plane strain, semi-brittle, tensile frac…
A survey is presented of the observed hyperfine fields at nuclei of impurities dissolved in metallic iron. Estimates are made from atomic hfs constants of the contributions to internal fields that might be expected on the basis of conduction-electron polarization. The observed fields in several heavy elements are roug…
The temperature and field dependences of the magnetostriction and thermal expansion of single-crystal dysprosium metal were measured in the paramagnetic, spiral, and ferromagnetic regions. In the paramagnetic temperature range from the N\'eel point to room temperature, the thermal expansion is normal and the six lowes…
Received 24 February 1965DOI:https://doi.org/10.1103/PhysRevLett.14.575©1965 American Physical Society
The complex dielectric constant $\ensuremath{\epsilon}(\ensuremath{\omega})={\ensuremath{\epsilon}}_{1}+i{\ensuremath{\epsilon}}_{2}$ and associated functions are derived by application of the Kramers-Kronig relation to reflectance data for graphite obtained in the energy range to 26 eV. It is possible to divide the o…
Abstract The reaction of lithium aluminum hydride forming mercaptan with disfulfides and mercaptan as well as hydrogen sulfide with polysulfides has been applied in order to characterize the structure of the crosslinks in the case of unaccelerated vulcanization of natural rubber with sulfur. The mercaptans formed were…
The principal structural features of spunbonded products are described, and these structural features are related to physical properties. of the materials and to textile performance.
This paper describes an apparatus which was designed for the evaluation of high temperature thermoelectric materials; it enables rapid measurement to be made of the factors controlling thermoelectric figure of merit, these being thermal conductivity, Seebeck coefficient and electrical resistivity, over the temperature…
Get PDF Email Share Share with Facebook Tweet This Post on reddit Share with LinkedIn Add to CiteULike Add to Mendeley Add to BibSonomy Get Citation Copy Citation Text Jerome S. Laufer, "High Silica Glass, Quartz, and Vitreous Silica," J. Opt. Soc. Am. 55, 458-460 (1965) Export Citation BibTex Endnote (RIS) HTML Plain…
Abstract The state of co‐ordination of aluminium ions in synthetic glasses in the system CaO–Al 2 O 3 –SiO 2 was studied by determining the effects of varying the alumina content (from 1 to 7 moles) on the density and refractive index of glasses of composition 10 CaO, 8 SiO 2 , n ‐Al 2 O 3 (CaO/SiO 2 ratio 1.17:1). Th…
Abstract Measurements of compressive stress relaxation for molded polytetrafluoroethylene were carried out at different temperatures over the range 60–150°C., at 5°C. increments under a small strain (less than 0.3%). By the application of the so‐called Ferry's reduction method, three master curves were obtained with g…
Masaki Ohta, Masatoshi Sugiyama; Meso-ionic Compounds of the 1,3-Dithiole Ring System, Bulletin of the Chemical Society of Japan, Volume 38, Issue 4, 1 Apr
Time‐temperature characteristics were established for the formation of a silica‐rich glassy microphase in a silicate glass. Plots of temperature versus nucleation time produced curves similar to those determined by Hillig for a glass‐crystal transformation. These experiments showed that a nucleation step was required…
Electronically conducting polymers have been prepared by treating hexa- chlorobenzene with sodium at 300°, using sodium chloride as a diluent. The products, presumably polybenzenes, have resistivities of 0.2-25 ohm cm depending on the amount of sodium used; less crosslinked polymers similarly prepared from 1,2,4-tri-c…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCatalytic Dissociation of Nitrogen DioxideL. L. Wikstrom and Ken NobeCite this: Ind. Eng. Chem. Process Des. Dev. 1965, 4, 2, 191–195Publication Date (Print):April 1, 1965Publication History Published online1 May 2002Published inissue 1 April 1965https://pubs.acs.org/doi/10.…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCatalyzed Nitric Oxide Reduction with Carbon MonoxideR. A. Baker and R. C. DoerrCite this: Ind. Eng. Chem. Process Des. Dev. 1965, 4, 2, 188–191Publication Date (Print):April 1, 1965Publication History Published online1 May 2002Published inissue 1 April 1965https://pubs.acs.…