Výsledky vyhledávání

Emission of occluded volatiles during deformation of polycarbonate due to strain-enhanced diffusion

Autor: J. T. Dickinson, R. P. Dion, L. C. Jensen, S. C. Langford

Publikováno v: Journal of Polymer Science Part B: Polymer Physics. 32:993-999

Measurements of the emission of purposely entrained volatiles (Ar and D2O) during the loading and unloading of a bisphenol-A polycarbonate in vacuum are made by quadrupole mass spectrometry. Transient loading events are accompanied by dramatic increa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::291ae7d14ef4eb198b8db4798368e32c
https://doi.org/10.1002/polb.1994.090320604

Zobrazit plný text záznamu

Temperature measurements of the gaseous emission during the fracture of polystyrene: A determination of the fracture energy and fracture surface temperature

Autor: S. C. Langford, R. P. Dion, L. C. Jensen, J. T. Dickinson

Publikováno v: Journal of Polymer Science Part B: Polymer Physics. 32:779-784

The emission of volatile species accompanying the fracture of polystyrene has been monitored as a function of time by two quadrupole mass spectrometers mounted at different distances from the sample. The resulting time-of-arrival signals were numeric

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d51ee4af9fd0178e1ce1528eccba43fd
https://doi.org/10.1002/polb.1994.090320419

Zobrazit plný text záznamu

Ar atom emission as a probe of craze formation and craze growth in polystyrene

Autor: R. P. Dion, J. T. Dickinson, S. C. Langford, L. C. Jensen

Publikováno v: Journal of Polymer Science Part B: Polymer Physics. 31:1441-1449

A report of measurements of Ar emission during the loading of polystyrene and high impact polystyrene in vacuum is presented. Argon was introduced into the material prior to the experiment by storing the samples in an Ar atmosphere. The development o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f1fe9f42a7724d2c598b7f5b9cee3749
https://doi.org/10.1002/polb.1993.090311101

Zobrazit plný text záznamu

Electron and photon emission accompanying deformation and fracture of polycarbonate

Autor: J. T. Dickinson, R. P. Dion, K. A. Zimmerman, S. C. Langford

Publikováno v: Journal of Polymer Science Part B: Polymer Physics. 31:1229-1243

Electron and photon emission accompanying tensile loading and failure of polycarbonate show weak emissions during the onset of neck formation and intense emissions during the fracture event itself. These results are interpreted in terms of formation

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::61b7c7e939788eecbf61531822ec0c31
https://doi.org/10.1002/polb.1993.090310918

Zobrazit plný text záznamu

Fracto‐emission from high density polyethylene: Bond breaking versus tribological stimulation

Autor: R. P. Dion, L. C. Jensen, J. T. Dickinson

Publikováno v: Journal of Applied Physics. 73:3047-3054

We reexamine the emission of electrons and positive ions from high density polyethylene (HDPE) during tensile deformation at strain rates on the order of 30% s−1. Earlier reports have suggested that electron emission due to bond scissions accompany

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6a101b53a723113fa04f93c297e1c31d
https://doi.org/10.1063/1.352987

Zobrazit plný text záznamu

Molecular CO emission accompanying fracture of polycarbonate: Evidence for chain cleavage

Autor: L. Nick, L. C. Jensen, R. P. Dion, S. C. Langford, J. T. Dickinson

Publikováno v: Journal of Materials Research. 8:14-17

When polycarbonate is loaded in tension at room temperature to failure, a certain percentage of the chains are believed to undergo cleavage due to the constraints of entanglements. We present direct evidence that accompanying fracture of polycarbonat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8cfe8c0596b524f655cb336a629ccd7c
https://doi.org/10.1557/jmr.1993.0014

Zobrazit plný text záznamu

Compatibility of high polymers probed by interfacial tension

Autor: Arie Cohen, Craig J. Carriere, Robert L. Sammler, R. P. Dion

Publikováno v: Rheologica Acta. 31:554-564

Imbedded-fiber retraction (IFR) has been applied to study the compatibility of high polymers. IFR measures the interfacial tension between two immiscible high-viscosity thermoplastic resins in their molten states. Ten nonreactive blend pairs were stu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b5a7881864d488ac7d12c58e95bc1566
https://doi.org/10.1007/bf00367010

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání