Now showing items 1-10 of 15
The macroscopic yield behaviour of polymers
(Kluwer Academic Publishers; Chapman and Hall ; Springer Science+Business Media, 1973-02)
A yield criterion, not previously compared with the actual macroscopic behaviour of polymers, is herein compared with the pressure-modified octahedral shear stress criterion earlier suggested by others. This new relation, ...
Hydrogen adsorption at dislocations and cracks in Fe
(Elsevier, 1978-12)
Solute adsorption to dislocations and cracks is considered in both the Boltzmann and Fermi-Dirac models. Explicit sums are developed for the integral amount of solute adsorbed in the defect fields. Examples of the use of ...
Cold extrusion and cold drawing of polymeric rod: The influence on subsequent tensile and compressive mechanical properties
(Elsevier, 1972)
Nylon 6-6, polycarbonate and high density polyethylene were extruded and drawn through a 40% reduction die in one pass at room temperature. Certain mechanical properties of the extrudate were measured by subsequent tension ...
Strain-induced crystallization I. Limiting extents of strain-induced nuclei Previously presented at the ACS Symposium on Fiber and Yarn Professing, Philadelphia (April 9, 1975)
(Society of Plastics Engineers, Inc.Wiley Periodiocals, Inc., 1976-03)
This paper points out that interpretations from stress changes alone during oriented crystallization have led to widely different proposed chain conformations and consequently very different crystallization mechanisms for ...
Strain-induced crystallization of natural rubber. III. Reexamination of axial-stress changes during oriented crystallization of natural rubber vulcanizates
(John Wiley & Sons, Inc., 1973-03)
In order critically to evaluate the previous morphological interpretations of stress relaxation during oriented crystallization, a reexamination was made of the relaxation behavior of the same oriented natural rubber ...
Strain-induced crystallization, Part III: Theory
(Society of Plastics Engineers, Inc.Wiley Periodiocals, Inc., 1979-05)
A nucleation theory for strain-induced crystallization is formulated to explain and to predict the effects of molecular strain on crystallization kinetics and crystallite size. Unlike any current theories that have based ...
Strain-induced crystallization II. Subsequent fibrillar-to-lamellar transformation Previously presented at the ACS Symposium on Fiber and Yarn Processing Philadelphia (April 9, 1975)
(Society of Plastics Engineers, Inc.Wiley Periodiocals, Inc., 1976-03)
Part II discusses numerous examples of a morphological fibrillar-to-lamellar transformation that has reportedly been observed in stretched polymers upon additional thermal treatment (or TIC), Stretched polymers containing ...
Treatise on solid state chemistry, volume 3 – crystalline and noncrystalline solids, N. B. Hannay, plenum press, New York, 1976, 774 pp. $45.00.
(John Wiley & Sons, Inc., 1977-03)
No Abstract.
Effect of annealing cold drawn polycarbonate below T g
(John Wiley & Sons, Inc., 1972-09)
No Abstract.
Current concepts of morphology of amorphous polymers-- II. Degree of local order and overall chain conformation
(Elsevier, 1979)
After a brief discussion on our earlier electron microscopyrresults of amorphous polymers and the results obtained by others in recent years from small angle neutron scattering and optical anisotropy measurements, it is ...