Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Ann Graeme-Barber"'
Autor:
Ming Zhang, Philippe Daniel, Hugues Leroux, Andrew M Clark, Ian Farnan, Ekhard K. H. Salje, Ann Graeme-Barber, Rodney C. Ewing
Publikováno v:
Journal of Physics: Condensed Matter. 12:1915-1925
Raman spectroscopy of radiation-damaged natural zircon samples shows increased line broadening and shifts of phonon frequencies with increasing radiation dose. Stretching and bending frequencies of SiO4 tetrahedra soften dramatically with increasing
Publikováno v:
European Journal of Mineralogy. 10:621-691
Autor:
B. Wruck, Michael A. Carpenter, Martin T. Dove, Ann Graeme-Barber, Kevin S. Knight, Ekhard K. H. Salje
Publikováno v:
American Mineralogist. 83:2-22
Spontaneous strains for the a ↔ b transition in quartz were determined from lattice parameter data collected by X-ray powder diffraction and neutron powder diffraction over the temperature range ;5‐1340 K. These appear to be compatible with previ
Autor:
Michael A. Carpenter, S.J.B. Reed, Ian Parsons, Ekhard K. H. Salje, Ming Zhang, H. Kroll, Ann Graeme-Barber
Publikováno v:
American Mineralogist. 82:849-857
An experimental method for the determination of Ab-Or exsolution and Al-Si ordering in alkali feldspar is described. Powder infrared spectroscopy was used to measure spectra in the spectral range between 50 and 1500 cm 21 using about 5 mg of sample m
Publikováno v:
Acta Crystallographica Section B Structural Science. 49:387-392
The temperature evolution of the lattice parameters of lead phosphate, Pb 3 (PO 4 ) 2 , indicates three lattice instabilities with anomalies near 530, 453 and ca 430 K. Only the phase transition at 453 K is ferroelastic with a spontaneous strain e=(e
Publikováno v:
Journal of Physics: Condensed Matter. 5:2961-2968
The kinetic and equilibrium behaviour of the order parameter, Qod, of Al,Si ordering in anorthite has been compared with the results of current rate theories (Ising-type Glauber, Ising-type Kawasaki and Landau-type rate equations). Although all rate
Publikováno v:
Physics and Chemistry of Minerals. 17
The kinetic rate laws of Al-Si disordering under dry conditions (T = 1353K, 1253 K, 1223 K, 1183 K) and in the presence of water (p = 1 kbar, T = 1023 K, 1073 K, 1103 K) were studied both experimentally and theoretically. A gradual change of the degr
Publikováno v:
Physics and Chemistry of Minerals. 16
The lattice parameters of anorthites An98Ab2 and An100 have been measured from 22 to 1100 K. The spontaneous strain arising from the $$I\overline 1 - P\overline 1$$ displacive transition in An98 follows second order Landau behaviour. The spontaneous
Publikováno v:
ResearcherID
The phonon spectra ofIR-active vibrations in alkali feldspars have been systematically investigated in the spectral range 50-2000 cm-I at temperatures between 20 and 900 K. Samples with high degrees of Al-Si order display IR absorption line profiles
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::82e3ac25de262fd02fb18e1b52dcb481
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=ORCID&SrcApp=OrcidOrg&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=WOS:A1996TW23300012&KeyUID=WOS:A1996TW23300012
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=ORCID&SrcApp=OrcidOrg&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=WOS:A1996TW23300012&KeyUID=WOS:A1996TW23300012
Autor:
Zhang, Ming, Salje, Ekhard K H, Farnan, Ian, Graeme-Barber, Ann, Daniel, Philippe, Ewing, Rodney C, Clark, Andrew M, Leroux, Hugues
Publikováno v:
Journal of Physics: Condensed Matter; 2/28/2000, Vol. 12 Issue 8, p1915-1925, 11p