1 - 10 of 78 articles
A steep inclination of the rocking curves of the dynamical X‐ray reflections obtained with a three‐crystal spectrometer was utilized to determine the piezoelectric constants of α‐quartz. Preliminary results show that this method is generally accurate and sensitive to rapid angular shifts of the...
A new type of crystal monochromator is presented which facilitates the selection of a precisely fixed wavelength 0 from a continuum at an intermediate bandwidth / of typically 10-3. Its essential feature is consecutive Bragg reflections from two crystals with slightly different Bragg-plane...
An X-ray diffraction method has been used to study the influence of solute concentration on molecular associations in aqueous solutions of urea. Calculations, from experimental intensities, of unsharpened electronic radial distribution functions (RDF) are presented for the range of urea...
The channel systems of (4-methylpyridine)4Ni(NCS)2 and (4-vinylpyridine)4Co(NCS)2 are described and compared. Much similarity is found and the minimum diameters of free passage are estimated in each case. It is concluded that both complexes are clathrates with notable zeolitic properties.
In directionally solidified Pb-Sn eutectic, prepared by the Bridgman technique, it has been found that it is possible to obtain grains of nearly perfect lamellar structure and stable at elevated temperatures. The interlamellar spacing is 1 m and the mean distance between fault lines 20 whereas...
The structures of anhydrous calcium silicates Ca3SiO5(C3S), Ca2SiO4 (-C2S and -C2S) and CaSiO3 (CS) have been examined and compared whereas the hydration products of the main cement component C3S have been studied by radial electron density distribution (RED) and infrared (IR) spectroscopy. The...
The calcium and strontium propionate monohydrates crystallize in the monoclinic space group P21/c and in the orthorhombic space group Pbca respectively. Their unit-cell parameters and indexed powder patterns are reported.
The contrast of dislocations in X‐ray topographs taken in the Guinier–Tennevin mode with synchrotron radiation has been studied. In reflections where high orders were insignificant, dislocation images appeared very similar to those in Lang topographs taken with characteristic radiation. At large...
Read and print from thousands of top scholarly journals.
Continue with Facebook
Log in with Microsoft
Already have an account? Log in
Bookmark this article. You can see your Bookmarks on your DeepDyve Library.
To save an article, log in first, or sign up for a DeepDyve account if you don’t already have one.
Sign Up Log In
To subscribe to email alerts, please log in first, or sign up for a DeepDyve account if you don’t already have one.
To get new article updates from a journal on your personalized homepage, please log in first, or sign up for a DeepDyve account if you don’t already have one.