Materials Literature
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Increased degradability in landfill and composting of the common packaging thermoplastics has been achieved by incorporating a biodegradable filler into the plastics compounds using standard hot-melt compounding techniques. A search of possible fitters disclosed that only raw starch satisfied the requirements of adequ…
Lithium ferrites are discussed and compared with other spinel microwave ferrites and rare earth-iron garnets. Points of comparison are saturation magnetization, temperature performance, hysteresis loop properties, stress sensitivity, insertion loss, power handling capability, resonance linewidth, and cost. The main po…
Abstract The theory of rubber elasticity relates the elastic modulus of unfilled amorphous rubber to the concentration of elastically effective strands. A theoretical relation between this concentration and the concentrations of potential entanglements, random tetrafunctional crosslinks, and chain ends was proposed re…
Summary For forty‐one soils (pH > 5.0) from southern England and eastern Australia, the Langmuir equation was an excellent model for describing P adsorption from solutions < 10 ‐3 M P, if it was assumed that adsorption occurs on two types of surface of contrasting bonding energies. For most of these soils, which…
Abstract The influence of surface properties on the flow of fluids, including epoxy resin, through aligned glass and other fiber beds has been examined. The observed flow rates were higher than those predicted from the Kozeny‐Carman equation, and were influenced by the surface properties of the fluid used. This is att…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPoly-.beta.-hydroxyalkanoate from activated sludgeLowell L. Wallen and William K. RohwedderCite this: Environ. Sci. Technol. 1974, 8, 6, 576–579Publication Date (Print):June 1, 1974Publication History Published online1 May 2002Published inissue 1 June 1974https://pubs.acs.or…
The refractive indices of GaAs at room temperature were determined from accurate double-beam reflectance measurements. The uncertainty in the refractive indices obtained by this technique is ±0.005. Measurements were made on high-purity n -type samples, n -type samples with free-electron concentrations from 5×1016 to…
Magnetic domain observations have been used to clarify the relationship between metallurgical structure and the core loss, permeability, and magnetostriction of grain-oriented 3% Si-Fe. Both the prediction of domain structures based on anisotropy, magnetostatics, stress, etc., and the various methods of making domain…
D P Woodruff London: Cambridge University Press 1973 pp viii + 182 price £3.30 The behaviour of a solid–liquid interface is important to metallurgists and crystal growers. There are three approaches.
The melting phenomena of aqueous polymer solutions and gels have been investigated by differential scanning calorimetry (DSC). The polymers used were synthetic polyacrylamide and poly(vinyl alcohol) samples as well as guar and xanthan gums. By using an empirical relation, the energy measured from the area under the me…
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