Zobrazeno 1 - 10
of 16
pro vyhledávání: '"A. B. Herhold"'
Publikováno v:
The Journal of Chemical Physics. 116:9036-9050
Alkanes exhibit intermediate plastic–crystalline rotator phases between the liquid and the low-temperature fully ordered crystal. Here we report measurements of the liquid-to-rotator and rotator-to-crystal homogeneous nucleation kinetics using x-ra
Autor:
Eric B. Sirota, A. B. Herhold
Publikováno v:
Polymer. 41:8781-8789
A transient metastable rotator phase occurs on crystallization of n -alkanes into their triclinic crystalline phase from the supercooled melt. This was directly observed using time resolved X-ray scattering. The observed crystallization temperature i
Publikováno v:
The Journal of Chemical Physics. 113:8225-8236
The kinetics of crystallization in nonadecylcyclohexane, an asymmetric alkane, was studied using x-ray scattering, differential scanning calorimetry (DSC), and optical microscopy. A transient mesophase was found with a crystallization/melting tempera
Publikováno v:
Phase Transitions. 68:1-25
Pressure-induced structural phase transitions have been studied in CdSe, CdS, InP and Si semiconductor nanocrystals. Nanocrystals transform via single nucleation of the phase transition with a kinetic barrier that increases in increasing cluster size
Publikováno v:
Science. 276:398-401
The kinetics of a first-order, solid-solid phase transition were investigated in the prototypical nanocrystal system CdSe as a function of crystallite size. In contrast to extended solids, nanocrystals convert from one structure to another by single
Autor:
Yibing Zhang, Limin Song, Cary N. Marzinsky, Geoff Keiser, Alan Mark Schilowitz, Amy B. Herhold
Publikováno v:
2011 IEEE SENSORS Proceedings.
Optical fiber distributed sensing technologies, consisting of many sensors in one single fiber, present unique and cost-effective solutions for the oil refining and petrochemical industries to optimize process operations and improve reliability and s
Publikováno v:
Science (New York, N.Y.). 293(5536)
The transition between four- and six-coordinate structures in CdSe nanocrystals displays simple transition kinetics as compared with the extended solid, and we determined activation volumes from the pressure dependence of the relaxation times. Our me
Autor:
E. B. Sirota, A. B. Herhold
Publikováno v:
ACS Symposium Series ISBN: 9780841236448
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c40b22b5051315f303d22a0b14f16c34
https://doi.org/10.1021/bk-2000-0739.ch015
https://doi.org/10.1021/bk-2000-0739.ch015
Publikováno v:
Physical review letters. 84(5)
X-ray diffraction was used to monitor the structure of 45 A diameter CdSe nanocrystals as they transformed repeatedly between fourfold and sixfold coordinated crystal structures. Simulations of the diffraction patterns reveal that a shape change occu
Autor:
Eric B. Sirota, A. B. Herhold
Publikováno v:
Science (New York, N.Y.). 283(5401)
A transient metastable rotator phase occurring on crystallization of hexadecane into its triclinic phase from the supercooled melt was directly observed with time-resolved synchrotron x-ray scattering. In this system, the limit of supercooling (the c