Materials Literature
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Abstract A study has been made on the plasma polymerization of styrene monomer in a cold, low‐power, inductively coupled RF plasma. Styrene monomer yielded an insoluble, crosslinked film which was slightly colored. A kinetic study is reported for styrene. The effects of power level, bleed rate of monomer, pressure, an…
The angular distribution of electrons elastically scattered from ${\mathrm{N}}_{2}$ as a function of energy has been measured utilizing a crossed-beam technique. Measurements have been made of monoenergetic electrons with energies between 5 and 90 eV scattered from a collimated beam of ${\mathrm{N}}_{2}$ at angles fro…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCarbon-13 Observations of the Nature of the Short-Chain Branches in Low-Density PolyethyleneD. E. Dorman, E. P. Otocka, and F. A. BoveyCite this: Macromolecules 1972, 5, 5, 574–577Publication Date (Print):September 1, 1972Publication History Published online1 May 2002Publish…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMagnetic exchange in transition metal complexes. VIII. Molecular field theory of intercluster interactions in transition metal cluster complexesA. P. Ginsberg and M. E. LinesCite this: Inorg. Chem. 1972, 11, 9, 2289–2290Publication Date (Print):September 1, 1972Publication H…
We establish a first example of a ferroelectric phase transformation where a Brillouin-zone-boundary soft mode [at the $M$ point (\textonehalf{}\textonehalf{},0)] rather than a Brillouin-zone-center mode of the parent paraelectric phase (PE) is responsible for the transition. By inelastic scattering of neutrons, we ha…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynergistic catalysis of ammonium nitrate decomposition. Visible spectra of ammine, chloro, and nitrato complexes of copper, nickel, and cobalt in fused ammonium nitrateA. G. Keenan and I. J. FerrerCite this: J. Phys. Chem. 1972, 76, 20, 2844–2848Publication Date (Print):Sep…
Measurements of the temperature dependence of the nuclear quadrupole resonance (NQR) frequencies and spin–lattice relaxation times for the 35 Cl nuclei in Cs 2 PtCl 6 , Rb 2 PtCl 6 , K 2 PtCl 6 , and K 2 PdCl 6 provide information on the temperature dependence of two averages of the rotary lattice mode frequency over…
Single crystals of Ba 13 Al 22 Si 10 O 66 were investigated by x-ray methods. The compound crystallizes in the hexagonal space group P 6 3 , with the unit-cell dimensions a = 9.955 ± 0.001 Å, c = 18.590 ± 0.005 Å. There is one formula unit in the unit cell. Three-dimensional Patterson and Fourier syntheses have been c…
The semiconducting properties of boron-, aluminum-, and titanium-doped diamond have been interpreted using the log R (resistance) vs 1/T curves. In boron-doped diamond, ``high-concentration''-type impurity band conduction occurs. The extrinsic ranges of the curves are analyzed with the usual model to yield the activat…
The thermal and electrical conductivities of 70-wt%-Ni-30-wt%-Fe, 81-wt%-Ni-19-wt%-Fe, and 67-wt%-Ni-33-wt%-Cu have been measured between 1.5 and 4.5 K, in external fields up to 6 T. Both nickel-iron alloys show a small magnon contribution ${\ensuremath{\kappa}}_{m}$ to the thermal conduction, equal to about 3% of the…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCrystal structure of americium sulfate octahydrateJohn H. Burns and Russell D. BaybarzCite this: Inorg. Chem. 1972, 11, 9, 2233–2237Publication Date (Print):September 1, 1972Publication History Published online1 May 2002Published inissue 1 September 1972https://pubs.acs.org/…
The magnetic properties of Fe-Cr-Co alloys as a function of the additional silicon content was studied. It was found that the magnetic properties depend on the compositions of the alloys and the best properties were obtained with an alloy of Fe-28wt%Cr-23wt%Co-1wt%Si. The energy product of this alloy attains 5.3 MGOe…
The one-dimensional motion of a planar gas bubble, the axially symmetric motion of a cylindrical bubble, and the spherically symmetric motion of a spherical bubble in a liquid are considered. Following J. B. Keller and I. I. Kolodner [J. Appl. Phys. 27, 1152–1161 (1956)], the velocity potential in the liquid is assume…
Setsuro EBASHI; Separation of Troponin into Its Three Components*, The Journal of Biochemistry, Volume 72, Issue 3, 1 September 1972, Pages 787–790, https:
The fracture surface energies of 5 polycrystalline silicon carbides were measured at room temperature using the double‐cantilever‐beam, notched‐beam, and work‐of‐fracture methods. All methods yielded comparable fracture surface energies,
The defect structure of monoclinic ZrO 2 was studied by measuring the transfer numbers and electrical conductivity as functions of O 2 pressure and temperature. The data suggest a defect structure of doubly ionized oxygen vacancies at low pressures, i.e. <10 −19 atm, and singly ionized oxygen interstitials at press…
Flow rates through gun perforations calculated for radial-flow conditions and confirmed in laboratory tests indicated perforation efficiencies substantially lower than those observed in API RP 43 tests with linear-flow test targets. Observed perforation efficiencies were also strongly influenced by differential pressu…
Larvae of the brachiopod Terebratalia transversa Sowerby have 2 bundles of setae on each side of their mantle lobe. Each seta grows out of a follicle of epidermal cells. The cisternae and associated vesicles of the Golgi bodies in lateral follicular cells are filled with electron dense material. The basal follicular c…
Abstract An apparatus was constructed which would allow vinyl‐type monomers (and others) to polymerize at ambient temperatures in the presence of an inductively coupled RF field. The details of the construction of the system are reported along with preliminary results obtained from nine monomers: styrene, methylvinyld…
The radiance N, resulting from an initially narrow collimated beam, propagating in the ocean, is investigated with the aid of the small-angle-scattering theory of electron scattering. The resulting expression for N is calculated approximately and compared both with experiments and numerical calculations. Various prope…