Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTGeometric Heterogeneity in the Adsorption of Nitrogen on Graphitized Carbon SurfacesDonald GrahamCite this: J. Phys. Chem. 1957, 61, 10, 1310–1313Publication Date (Print):October 1, 1957Publication History Published online1 May 2002Published inissue 1 October 1957https://doi…
Measurements of elastic modulus and mechanical loss at audio-frequencies have been obtained on irradiated and nonirradiated specimens of polyhexamethylene adipamide over a broad temperature range extending from 80°K to 600°K. The irradiations were carried out at the Brookhaven and Penn State Reactors. The internal fri…
Spherulite growth rates have been measured in two polyamides, 66 and 6 nylon, at temperatures ranging from 38 to 141° below the melting points using a moving photomicrographic technique. At constant temperature, the spherulite radius increases at a constant rate. This isothermal growth rate constant is temperature dep…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTX-Ray Diffraction of Molecular Compounds of Long-chain Saturated Fatty Acids. II. Some Further Observations on the Diffraction of Molecular Compounds of Acetamide and Long-chain Saturated Fatty AcidsRobert T. O'Connor, Robert R. Mod, Mildred D. Murray, Frank C. Magne, and Ev…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Thermal Conductivities of Some Liquid Nitrate EstersD. L. Hildenbrand and J. A. HappeCite this: J. Phys. Chem. 1957, 61, 10, 1415–1417Publication Date (Print):October 1, 1957Publication History Published online1 May 2002Published inissue 1 October 1957https://doi.org/10.…
The use of highly alloyed materials to combat corrosion is discussed and extensive data are given. The following molybdenum-bearing alloys are considered at length: nickel-molybdenum alloy, nickel-molybdenum-chromium alloy, and nickel-chromium-iron-molybdenum alloy. Attention is given also to cobalt-base alloys and si…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTVapor Pressures of Some Phosphate and Phosphonate EstersAlan Dobry and Richard KellerCite this: J. Phys. Chem. 1957, 61, 10, 1448–1449Publication Date (Print):October 1, 1957Publication History Published online1 May 2002Published inissue 1 October 1957https://pubs.acs.org/do…
A liquid tin solution calorimeter has been constructed for determining the heats of formation of alloy phases from the heats of solution of the alloys and of the pure component metals in liquid tin. The design of the calorimeter is presented, and the experimental procedures and calculation methods are described and il…
The sulfide corrosion cracking behavior of Type 4140 bolts was studied in H2S-H2O systems at temperatures of 20 to 120 C and at pressures of 1 to 17 atmospheres. The susceptibility to cracking increased with increasing bolt hardness, increasing applied stress, increasing amounts of plastic deformation, and decreasing…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAdsorption from Solution of Stearic Acid on Iron: Effect on Electrode PotentialJohn J. Bordeaux and Norman HackermanCite this: J. Phys. Chem. 1957, 61, 10, 1323–1327Publication Date (Print):October 1, 1957Publication History Published online1 May 2002Published inissue 1 Octo…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTVinylidene Fluoride – Hexafluoropropylene CopolymerStanley Dixon, D. R. Rexford, and J. S. RuggCite this: Ind. Eng. Chem. 1957, 49, 10, 1687–1690Publication Date (Print):October 1, 1957Publication History Published online1 May 2002Published inissue 1 October 1957https://pubs…
A study of the Zeeman effect of absorption lines of GdCl3·6H2O and its dependence on the orientation of the crystal has given the constants for the magnetic ellipsoids for the ground state and 11 excited states. Evidence is presented for identifying the first three absorption groups as transitions from 8S to 6P7/2, 6P…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Ion-exchange Properties of Muscovite MicaGeorge L. Gaines Jr.Cite this: J. Phys. Chem. 1957, 61, 10, 1408–1413Publication Date (Print):October 1, 1957Publication History Published online1 May 2002Published inissue 1 October 1957https://pubs.acs.org/doi/10.1021/j150556a03…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRHOMBOHEDRAL ELEMENTAL BORONDonald E. Sands and J. L. HoardCite this: J. Am. Chem. Soc. 1957, 79, 20, 5582–5583Publication Date (Print):October 1, 1957Publication History Published online1 May 2002Published inissue 1 October 1957https://pubs.acs.org/doi/10.1021/ja01577a072ht…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSteric Effects on the Base Strengths of Cyclic Amines1H. K. Hall Jr.Cite this: J. Am. Chem. Soc. 1957, 79, 20, 5444–5447Publication Date (Print):October 1, 1957Publication History Published online1 May 2002Published inissue 1 October 1957https://pubs.acs.org/doi/10.1021/ja01…
Previous studies of the kinetics of dehydroxylation of kaolinite and halloysite point to first‐order reactions, in approximate conformity with the Arrhenius relation. Isothermal weight‐loss measurements have shown that the rate constants are markedly dependent on factors such as specimen size, shape, and compaction. A…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCRYSTALLOGRAPHY OF OCTACALCIUM PHOSPHATEWalter E. Brown, James R. Lehr, James P. Smith, and A. William FrazierCite this: J. Am. Chem. Soc. 1957, 79, 19, 5318–5319Publication Date (Print):October 1, 1957Publication History Published online1 May 2002Published inissue 1 October…
Upon depoling ceramic barium titanate, up to 9% of the domains reorient by 90°, indicating that during poling at least this percentage of the domains was permanently reoriented by 90°. Ceramic barium titanate shows a strong anelastic effect in the ferroelectric state, presumably due to domain reorientations under stre…
Magnetic properties of the synthesized solid solution x FeTiO 3 ·(1- x ) Fe 2 O 3 of ilmenite (FeTiO 3 ) and hematite (Fe 2 O 3 ) were investigated in detail for the whole range of 0≦ x ≦1. On the experimental side of the study, the most suitable method for preparing the specimen with the largest intensity of magnetiz…
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