Materials Literature
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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTreatment of coal devolatilization in comprehensive combustion modelingB. Scott Brewster, Larry L. Baxter, and L. Douglas SmootCite this: Energy Fuels 1988, 2, 4, 362–370Publication Date (Print):July 1, 1988Publication History Published online1 May 2002Published inissue 1 Ju…
Vickers and Knoop indentation tests have been used to study the fracture and deformation characteristics of 9.4‐mol%‐Y 2 O 3 ‐stabilized ZrO 2 single crystals. K c is anisotropic, with values of 1.9 and 1.1 MPa·m 1/2 for radial cracks propagating along (100) and (110), respectively. The toughness for these two orienta…
Abstract The adsorption, chemisorption and oxide formation of molecular oxygen was studied on the (100) surface of molybdenum single crystal by following the changes in Mo 3d photoelectron lines and the characteristic losses in EELS. For estimation of the oxygen content, both XPS and AES were applied. At the room temp…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNMR of silk fibroin. 9. Sequence and conformation analyses of the silk fibroins from Bombyx mori and Philosamia cynthia ricini by 15N NMR spectroscopyTetsuo Asakura, Hiroaki Yoshimizu, and Fumihiko YoshizawaCite this: Macromolecules 1988, 21, 7, 2038–2041Publication Date (Pr…
This paper reviews the technology of some of the concepts which are applicable to electrically heated clothing systems, and which have been examined by the Ministry of Defence. Some of these systems are already in military and civilian use, whereas others are experimental. The essential features which an electrically…
Abstract Celluloses from a variety of common sources were analyzed for availabilities of O(2)H, O(3)H, and O(6)H in order to estimate the extent of hydrogen bonding on accessible fibrillar surfaces. Celluloses from flax, ramie, sisal, and wood (both cellulose I and II from wood) together with liquid NH 3 ‐swollen cott…
Abstract A series of amine terminated polypropylene oxide based thermoplastic polyureas with hard segment contents of 30%, 50%, and 70 percent were synthesized via solution polymerization and reaction injection molding (RIM). Amine terminated polypropylene oxide (PPO‐NH 2 ) of M n = 2000 was used as the soft segment a…
Infrared spectroscopy (IRS) was used to study the formation and transformation of rust phases and the weathering characteristics of ASTM(1) A588 weathering steels in bridge spans. The technique enables not only clear differentiation between various rust phases, but also detects various forms of amorphous and not well-…
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X-ray photoelectron spectroscopy (XPS) is used to characterize the surface region of a commercial Cu/ZnO/Al 2 O 3 (33/66/1 wt %) catalyst. A systematic study of the effects of oxidation, reduction, and the steam reformation of methanol on the oxidative state of the Cu component is presented. The Zn XPS features show n…
peer reviewed
Pitting corrosion of aluminum alloys is sensitive to the type of surface treatment used prior to a corrosion test. In particular, significant differences in the pitting behavior are observed between the as-received and etched surfaces of several wrought alloys. It is shown that the as-received surface is generally mor…
Using radiation inactivation we determined that p21 ras proteins exhibit an oligomeric target size when assayed both structurally and functionally. Similar target sizes of p21 in ras-transformed cells and in purified preparations of the protein suggested that its structure is homo-oligomeric. p21 monomers were destroy…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTGlyceryl polyphosphazenes: synthesis, properties, and hydrolysisHarry R. Allcock and Sukky KwonCite this: Macromolecules 1988, 21, 7, 1980–1985Publication Date (Print):July 1, 1988Publication History Published online1 May 2002Published inissue 1 July 1988https://pubs.acs.org…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA new class of cation conductors: polyphosphazene sulfonatesS. Ganapathiappan, Kaimin Chen, and D. F. ShriverCite this: Macromolecules 1988, 21, 7, 2299–2301Publication Date (Print):July 1, 1988Publication History Published online1 May 2002Published inissue 1 July 1988https:…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEstimation of the Rh-Rh bond dissociation energy in the (octaethylporphyrinato)rhodium(II) dimer by proton NMR line broadeningBradford B. Wayland, Virginia L. Coffin, and Maria D. FarnosCite this: Inorg. Chem. 1988, 27, 15, 2745–2747Publication Date (Print):July 1, 1988Publi…
Abstract A series of new bisbenzocyclobutene‐terminated aromatic imide monomers has been synthesized from the condensation reaction of 4‐aminobenzocyclobutene and the perspective dianhydride in refluxing acetic acid/toluene. The differential scanning calorimetric studies of the foregoing monomers indicated that polyme…
Abstract The mechanical properties of Si 3 N 4 based ceramic bodies are largely controlled by the phases formed on the grain boundaries during sintering. For this reason determination of the state and the chemical composition of the surface of the starting Si 3 N 4 powder is of prime theoretial and practical importanc…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEmission characteristics and photostability of N,N'-bis(2,5-di-tertbutylphenyl)-3,4:9,10-perylenebis(dicarboximide)El Zeiny M. Ebeid, Samy A. El-Daly, and Heinz LanghalsCite this: J. Phys. Chem. 1988, 92, 15, 4565–4568Publication Date (Print):July 1, 1988Publication History…
Abstract Regionally extensive, fine-grained dolostones from the Mississippian Burlington-Keokuk Fm. comprise two major generations of dolomite that can be distinguished by their cathodoluminescence, chemical compositions, and times of formation. The petrography and geochemistry of glauconite, the predominant clay mine…