Materials Literature
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The effects on the corrosion of copper, under the influence of dissolved oxygen and carbon dioxide, of trace additions of salts have been studied. In the case of chloride ion, radical changes in the kinetics of dissolution and film growth processes have been observed and have been interpreted in terms of a transition…
P. G. Ashmore and M. G. Burnett, Trans. Faraday Soc., 1962, 58, 253 DOI: 10.1039/TF9625800253
The infrared spectra of polyatomic ions in dilute solid solution reflect interactions of the vibrational modes with the lattice environment. The spectra are usually characterized by very narrow bandwidths, and by frequency shifts and changes in absorption intensities which depend upon the host lattice. We have examine…
The oxidation of silicon by high‐pressure steam was studied at temperatures between 773° and 1123°K and pressures from 25 to 500 atm. Within a certain range of pressure and temperature a uniform film of amorphous silicon dioxide forms. At moderate pressures the film growth is linear in time and directly proportional t…
J. M. Birchall, R. N. Haszeldine and A. R. Parkinson, J. Chem. Soc., 1962, 4966 DOI: 10.1039/JR9620004966
NOTE ON VARIATIONS IN THE RELEASE OF NAUPLII OF BALANUS BALANOIDES WITH SPECIAL REFERENCE TO THE SPRING DIATOM OUTBURST BY H. BARNES The Marine Station, Millport, Scotland Balanus balanoides ( L. ) is well known to retain its embryos in the mantle cavity of the parent long after viable nauplii can be hatched from the…
The phenomenon called anhysteretic remanent magnetization, ARM, has been known for a long time, but it has received relatively little attention. A knowledge of this type of magnetization is required in proper application of alternating field demagnetization techniques to rock magnetism problems. Over a wide range of l…
R. C. Mackenzie and B. D. Mitchell, Analyst, 1962, 87, 420 DOI: 10.1039/AN9628700420
F. Franks and H. H. Johnson, Trans. Faraday Soc., 1962, 58, 656 DOI: 10.1039/TF9625800656
R. P. Bell and D. P. Onwood, Trans. Faraday Soc., 1962, 58, 1557 DOI: 10.1039/TF9625801557
lt is shown that R. A. Ferrell's calculation of a peak of Rev. lll: l214 (1958)), while valid, can also be obtained from a calculation of transition radiation (V. P. 8ilin and E. P. Fetisov, Phys. Rev. Letters 7of 374 (196l)). (L.N.N.)
Evidence is presented which shows that columnar grains can be induced to grow in high‐density sintered uranium dioxide specimens by applying a steep temperature gradient at temperatures above 1700°C but below the melting point of 2800°C. Columnar growth apparently is a result of the migration of large transverse voids…
Electrode potentials of were measured in solutions containing fixed amounts of ions or ions, as a function of p H. Oxygen overvoltage and ease of electrochemical reduction are correlated with anion adsorption and true surface area of the two oxide modifications. A method for synthesis of by chemical means is described…
Abstract The stress cracking of polyethylene was studied under various experimental conditions, and the importance of the effect of both crystallinity and molecular weight of the polymer was established. Many of the variables were investigated, such as the thermal pretreatment of the sample, temperature of the sample,…
The characteristic electron energy loss spectra of the alkali halides LiF, LiCl, NaF, NaCl, NaBr, NaI, KF, KCl, KBr, KI, RbCl, CsBr and CsI, were measured using primary energies of 800 eV and 1500 eV. In each spectrum a peak due to the excitation of the valence electron plasma oscillation is observed. There is good ag…
Abstract Thin foils of pure gold (99,999%) were quenched into water from 700 to 1000 °C. Also foils of various purities (impurity concentrations up to 0.2 atomic percent Cu) are cold‐rolled at temperatures below −40 °C, and the recovery of the electrical resistivity studied between −40 °C and + 300 °C. Fast quenches f…
The reaction of gallium with quartz to produce gallium suboxide, , and silicon is shown by equilibrium calculations to be a mechanism by which gallium arsenide can become contaminated with silicon, and possibly oxygen, when synthesized in quartz systems. The contamination of gallium arsenide with silicon by this react…
Some of the important factors that affect the degree of reproducibility of desired dimensions, flatness, and surface finish of chemically etched silicon have been investigated. The etching rate of single crystal silicon in hydrofluoric and nitric acids was studied as a function of the ratio of the concentrated acids,…
Summary Droplets of concentrated whole milk foam have been dried in a standard spray dryer. This has been done by incorporating nitrogen gas into the concentrate at high pressure prior to atomization. The resultant powder has excellent dispersibility properties and can be produced at rates in excess of those obtained…
Nickel electrodeposits, of various thicknesses, were prepared from Watts' baths containing several addition agents to study the development of the surface structure. By electron‐microscopic examinations of replicas, thin films, and electrolytically thinned bulk metal the reasons for the formation of several structural…