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The present paper points out that Kromm’s [1] plane-stress solution, for compressional waves in an infinite elastic plate subjected to radial pressure in a circular hole at its center, has application to still another problem of interest. This is the problem of a stretched elastic plate in which a circular hole is sud…
Abstract The metastable solubility isotherm for dicalcium phosphate dihydrate, CaHPO 4 ·2H 2 O, (DCPD), in the pH range 3.5 to 7.5 was established by (a) leaching solutions of dilute phosphoric acid through columns of DCPD, and (b) by shaking suspensions of DCPD in dilute phosphoric acid solutions. In other experiment…
A study has been made of the effect of 1 MeV electron irradiation on the mechanical properties of lithium fluoride single crystals tested in compression. The yield point, σ has been shown to vary with the irradiation dose, φ, according to the law σ=σ u +A[1-exp (-Bφ)]1/2, where σ u , A and B are constants. This relati…
The monoclinic 0-phase in the chromium-aluminium system has been shown to be isomorphous with a'(V-A1). The structure has been refined and the interatomic distances are discussed and compared with those in a'(V-A1) and with those in two ternary alloy phases containing chromium and aluminium.
Residual electrical resistivity has been used as an index of the damage present in tungsten irradiated in a nuclear reactor at 4°K and 77°K. A comparison was made between four different types of specimen prepared from cold-drawn wire respectively annealed before irradiation at 2000, 1500, 800°c and not at all. A fifth…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Preparation and Properties of Boron Phosphides and Arsenides1Forrest V. Williams and Robert A. RuehrweinCite this: J. Am. Chem. Soc. 1960, 82, 6, 1330–1332Publication Date (Print):March 1, 1960Publication History Published online1 May 2002Published inissue 1 March 1960ht…
Abstract Although the process of dolomitization is not well known at present, the requirement of conservation of mass of the chemical constituents of the rock and the interstitial solution places definite limits on the process. Most subsurface waters contain relatively small concentrations of bicarbonate compared to t…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCatalyzed Hydrolysis of Sodium BorohydrideArthur. Levy, John B. Brown, and Carl J. LyonsCite this: Ind. Eng. Chem. 1960, 52, 3, 211–214Publication Date (Print):March 1, 1960Publication History Published online1 May 2002Published inissue 1 March 1960https://pubs.acs.org/doi/1…
Diffusion in a polycrystalline body is discussed under the assumption that two interrelated mechanisms consisting of diffusion through the grains and in the boundaries around the grains are dominant in different penetration regions. The general behavior of the average concentration-distribution of diffusant is describ…
Abstract The infrared spectra of doubly oriented films of mercerized ramie and Fortisan crystallites were observed over the 650–3600 cm. −1 frequency range. Polarization properties of the bands were determined. The CH 2 symmetric bending frequency was found to be parallel polarized, from which it was concluded that th…
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Abstract The polarized infrared spectra of crab chitin crystallites, blowfly larval cuticle, lobster tendon, and partially deacetylated lobster chitin have been studied. In addition, the spectra of amorphous deacetylated chitin, deuterated lobster chitin and crystalline N ‐acetylated chitohexaose were obtained and ana…