lamellar crystal

lamellar crystal

[lə′mel·ər ′krist·əl]
(crystallography)
A polycrystalline substance whose grains are in the form of thin sheets.
References in periodicals archive ?
The additive's ability to create lamellar crystal orientation of PE in the polymer flow (or machine) direction aids the reduction in shrinkage.
The pure PLA is known to exhibit spherulitic structure, containing stacked lamellar morphology with the long axis of the lamellar crystal running parallel to the spherulite radius (41).
Necessary, but not sufficient condition for the lamellar thickening is the existence of some segmental dynamics within the lamellar crystal, generally called [alpha]-relaxation process (24).
For the pure PEO(200M), spherulite formation with a lamellar crystal morphology alternating amorphous and crystalline phase is observed, in agreement with a reported work [34] (see Fig.
7A are further analyzed to obtain structural information of lamellar crystal dimensions in the direction normal to the individual diffraction plan, i.
It should be pointed out that, in principle, the HL theory was derived to describe the growth rate of a lamellar crystal at a specific crystallographic plane.
Samples for TEM were prepared by depositing drops of the lamellar crystal suspension in butanediol onto the carbon-coated, newly cleaved mica.
Finally, the incorporated DMP units may be excluded from lamellar crystal formation, increasing the fraction of amorphous phase in the polymer.
c] values obtained at proper original and/or modified nanofiller contents can be melted and pulled out of folded lamellar crystals relatively easily during ultradrawing processes, and hence, results in higher drawability and orientation of the UHMWPE/nanofillers or UHMWPE/modified nanofillers as-prepared fibers.
The chain folding process results in lamellar crystals with sizes directly proportional to the polymer crystallinity.
These structures yield also to a different amount of tie-molecules between the lamellar crystals [28-30].