Application of 17-7 Precipitation-hardenable Stainless Steel in Dentistry
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The mechanisms of irradiation creep in graphite
The motion of edge and screw dislocations in a graphite polycrystal subjected to external forces and fast neutron irradiation is considered. A transient creep strain, proportional to the external stress and proportional to the ratio of the dimensions of the component crystallites in the a and c directions, is deduced.…
Thermodynamics of Metal Cyanide Coordination. IV. Log βi°, ΔHi°, and ΔSi°, Values for the Zinc(II)-Cyanide System at 25°
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThermodynamics of Metal Cyanide Coordination. IV. Log βi°, ΔHi°, and ΔSi°, Values for the Zinc(II)-Cyanide System at 25°Reed M. Izatt, James J. Christensen, James W. Hansen, and Gerald D. WattCite this: Inorg. Chem. 1965, 4, 5, 718–721Publication Date (Print):May 1, 1965Publ…
Second-order strain accumulation in cyclic torsion
Superpurity aluminium specimens subject to reversed cyclic torsion extend axially by accumulation of second-order plastic strain increments. These arise in quasi-isotropic strain-hardening metals because of the additional quadratic term in the stress-strain relation that is required by the condition of tensorial invar…
Light flashes and shocks from a cavitating flow
The nature of the light emitted from the cavitating flow of tap water through a Venturi tube has been studied. The light is emitted as flashes of duration less than 5 μsec and its spectrum lies between 400 and 700 nm with a maximum intensity at 470 nm. Shock waves were detected by miniature pressure transducers implan…
X-Ray Absorption Factors for Cylindrical Samples in Annular Sample Cells Exposed to Incident Beams of Limited Width
Expressions are derived for x-ray absorption factors for a liquid or amorphous sample confined within a cylindrical sample cell. Sufficient geometrical parameters are included in the formulation to cover many experimental cases of practical interest. Various integrals involved are formulated in numerical calculus form…
2-Methacryloxytropones. Intermediates for the Synthesis of Biologically Active Polymers
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXT2-Methacryloxytropones. Intermediates for the Synthesis of Biologically Active PolymersRobert J. Cornell and L. Guy DonarumaCite this: J. Med. Chem. 1965, 8, 3, 388–390Publication Date (Print):May 1, 1965Publication History Published online1 May 2002Published inissue 1 May 1…
Kinetic Studies on Reactions of Praseodymium Oxides in an Oxygen Atmosphere: PrO1.83 + O2 ⇄ PrO2
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTKinetic Studies on Reactions of Praseodymium Oxides in an Oxygen Atmosphere: PrO1.83 + O2 ⇄ PrO2B. G. Hyde, E. E. Garver, U. E. Kuntz, and L. EyringCite this: J. Phys. Chem. 1965, 69, 5, 1667–1675Publication Date (Print):May 1, 1965Publication History Published online1 May 2…
Spectroscopic Studies of Substituted Benzalanilines
Ultraviolet and visible spectra are reported for 28 N-benzylidineanilines with their molar absorptivities given in absolute ethanol, and in isooctane when feasible. Infrared studies in the 2–15 micron region are reported for these compounds and also for three newly synthesized N-d-benzylidineamhnes. With the aid of th…
Electronic structure and magnetic properties of the neptunyl ion
The magnetic and spect roscopi c properties of the neptunyl ion a re reco nsid ered. The effec t on the energy levels of covale ncy is discussed. New valu es for the pa ram e te rs of our earlie r theo ry are obtained, the analysis being based on more recent spectroscopi c data and arguments co nce rning the relative…
Entropy and heat of fusion of polymers
Abstract Methods are presented for estimating the entropy and heat of fusion of polyolefins, polyamides, polyesters, etc. Although the formulas are approximate, good agreement is obtained with experimental values, where available. For example, the calculated entropies for polypropylene, polyoxymethylene, nylon 66, pol…
Crystalline Solution in the System MgO‐Mg,SiO 4 ,‐MgAl 2 ,O 4 ,
Crystalline solubility relations in the system MgO‐Mg 2 SiO 4 MgAl 2 O 4 (periclase‐forsterite‐spinel) were studied using coprecipitated gels as starting materials. The substitution 2Al = Mg + Si was investigated along the join Mg 2 SiO 4 ‐Mg‐Al 2 O 4 ,. At 1720°C the maximum crystalline solution in forsterite is abou…
REPAIR OF THE SHELL IN SPECIES OF ANODONTA
The process of shell repair in specios of Anodonta is re‐examined in the light of current views on the mantle/shell relationship in the Lamellibranchia. Experiments indicate that the epithelia of the general outer mantle surface and mantle isthmus normally responsible for the production, respectively, of the inner lay…
Vapor‐Deposited Borides of Group IVA Metals
The formation of vapor‐deposited TiB 2 , ZrB 2 , and HfB 2 at 1400°C was studied with respect to the influence of process variables on structure and stoichiometry. Stoichiometric, nonporous deposits of TiB 2 were obtained; ZrB 2 and HfB 2 deposits contained β‐rhombohedral boron. Precision lattice parameters were deter…
The crystal structure of dalyite
The crystal structure of dalyite, a potassium (sodium) zirconium silicate K 1.70 Na 0.30 ZrSi 6 O 15 , has been determined and refined by two-dimensional Fourier methods. It is a new type of sheet silicate containing four, six- and eight-memebered rings of SiO 4 tetrahedra. The sheets are joined by ZrO 6 octahedra and…
Solid Solutions in the System Urania—Rare‐Earth Oxides: I, UO 2 ‐GdO 1.5 ,
The extent and nature of solid solution formation in the system urania‐gadolinia were investigated. Compositions sintered in hydrogen, in argon, and in air were analyzed by chemical and X‐ray methods. Extensive solid solution exists between uranium dioxide and gadolinium sesquioxide. Some anomalies in the lattice para…
Pressure Effects on Glass Transition in Polymers
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPressure Effects on Glass Transition in PolymersUmberto BianchiCite this: J. Phys. Chem. 1965, 69, 5, 1497–1504Publication Date (Print):May 1, 1965Publication History Published online1 May 2002Published inissue 1 May 1965https://pubs.acs.org/doi/10.1021/j100889a010https://do…
19—WORSTED 1 × 1 RIB FABRICS PART I. DIMENSIONAL PROPERTIES
It is shown experimentally that, for practical purposes, the geometrical properties of worsted 1 × 1 rib fabrics can be described by sets of k values similar to those used for plain-knitted fabrics. The results obtained are fitted to a simple model of the 1 × 1 rib stitch based on Leaf's model of the plain-knitted loo…
Dielectric Properties of Polyanion—Polycation Complexes
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDielectric Properties of Polyanion—Polycation ComplexesAlan S. Michaels, Gary L. Falkenstein, and Nathaniel S. SchneiderCite this: J. Phys. Chem. 1965, 69, 5, 1456–1465Publication Date (Print):May 1, 1965Publication History Published online1 May 2002Published inissue 1 May 1…
The Magnetic Moments of Some Tetragonal Nickel Complexes
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Magnetic Moments of Some Tetragonal Nickel ComplexesA. B. P. LeverCite this: Inorg. Chem. 1965, 4, 5, 763–764Publication Date (Print):May 1, 1965Publication History Published online1 May 2002Published inissue 1 May 1965https://pubs.acs.org/doi/10.1021/ic50027a041https://…