Materials Literature
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Fifty-four kimberlite pipes and dykes cut Precambrian granite in the Singida region of Tanganyika. The pipes range from 60 to 2500 feet in diameter, and occur in clusters and lines. The lines follow fracture zones. In addition to intrusive kimberlite, the pipes contain massive to stratified kimberlite tuff and sedimen…
Abstract Strontium phosphate precipitates were formed by mixing different amounts of Sr(OH) 2 and H 3 PO 4 . A solubility diagram was prepared from the analysis of the supernatant in equilibrium with the precipitate. X‐ray diffraction patterns indicated that there were two compounds, SrHPO 4 and Sr 10 (PO) 6 (OH) 2 .…
D. H. Brown, J. Chem. Soc., 1962, 4408 DOI: 10.1039/JR9620004408
Abstract Die Umsetzung von TiN mit HCl, bei der H 2 , N 2 und die gasförmigen Chloride TiCl 4 , TiCl 3 und TiCl 2 nebeneinander entstehen, verläuft oberhalb 1300°C hinreichend schnell und reversibel, so daß sie den chemischen Transport von TiN im Temperaturgefälle ermöglicht. Im Zusammenhang hiermit wurde eine Arbeits…
Skeletal muscle, teased into strips several millimeters long and 1 mm or less thick, is fixed in a 3:1 mixture of lemon juice and formic acid until transparent. The tissue is compressed between folds of absorbent material to remove excess fixative and impregnated for 10 min in a volume of 1% gold chloride equal to the…
Principles of Taxonomy, especially pertaining to the Algae are discussed at length. Though primarily based on morphology, other criteria, such as reproduction and life history flagellation, cytological details, pigmentation, nature of metabolic products, etc., play a distinct and sometimes a significant role at differ…
M. R. Truter, J. Chem. Soc., 1962, 3393 DOI: 10.1039/JR9620003393
R. M. Barrer and D. J. Ruzicka, Trans. Faraday Soc., 1962, 58, 2253 DOI: 10.1039/TF9625802253
Abstract Es werden die RAMAN‐Spektren von Alkalisalzen der Peroxodischwefelsäure in wäßriger Lösung und im festen Zustand aufgenommen und die Ultrarotspektren im festen Zustand gemessen. Die gefundenen Frequenzen werden den einzelnen Schwingungsformen zugeordnet. Die Auswertung der Spektren im Hinblick auf die Struktu…
An investigation is reported on the oxidation of an iron‐5% chromium alloy over the temperature range 600°–850°C. The film on abraded specimens underwent transformation by nodular‐type growths to produce a scale containing iron chromite and ferric‐chromic oxide. The alloy underlying iron chromite was susceptible to in…
It has been discovered that the formation of the butterfly twin in barium titanate depends on both the average particle size and the particle‐size distribution of the starting material. Maximum twin yields occur when the particles have an average size near 1μ with a rather sharp cutoff in the distribution in the large…
The measured characteristics (pressure-voltage, current-voltage, and efficiency) of an ion drag pump using razor edge emitters are reported and comparisons made with theory. The advantages of this pump over one using corona point emitters are discussed.
The authors studied theoretically the behavior of fiber bundles as they are delivered from the front rolls of a ring spinning frame and twisted. The causes of the long-term twist irregularity found in some yarns and their effects on yarn properties have been analyzed.
Abstract not Available.
Abstract A one‐electron theory of the scattering of electrons from infinitely extended stacking faults in f. c. c. metals is given for an arbitrarily shaped Fermi surface. The corresponding linearised transport problem is then solved without approximation. The wave functions are represented by expansions in terms of W…
Abstract
The effect of material variables on the fatigue life of AISI 52100 steel in ball bearings is examined. An apparently significant negative correlation with the abundance of certain trace alloying elements has been found. An effect of gas content has not been proven. Some difference in the endurance of bearings tempered…
Epiphytic diatoms found upon various sea-weeds collected from the Japanese coast were examined. Thirty-two diatoms, which seem to be main members of the epiphytic communities, are specified in this report.
Abstract From pole figure data, the orientation of a crystallographic direction R in any reference direction Q in a sample can be quantitatively expressed by the average <cos 2 σ>, where σ is the angle between Q and R in a crystal. In general, <cos 2 σ> can be evaluated in terms of the experimental average…
W. S. Holmes, Trans. Faraday Soc., 1962, 58, 1916 DOI: 10.1039/TF9625801916