Journal of Geophysical Research Solid EarthV. Swamy and S. K. Saxena, “A Thermodynamic Assessment of Silica Phase Diagram,” J. Geophys. Res. 99 (B6), 11 787–11 794 (1994).Swamy V, Saxena SK, Sundman B, Zhang J (1994) A thermodynamic assessment of silica phase diagram. J ...
Properties of high-temperature phase diagram and critical point parameters in silica. Some uncertainties are discussed on the high-temperature phase boundaries and critical point parameters for gas-liquid phase transition in silica (SiO2). T... IOSILEVSKIY,IGOR,GRYAZNOV,... - High Temperatures --...
- 《Physics & Chemistry of Minerals》 被引量: 313发表: 1996年 A thermodynamic assessment of silica phase diagram An internally consistent data set on the thermodynamic properties of the silica polymorphs stable up to 15 GPa (-quartz, -quartz, tridymite, cristobalite, ... V Swamy,SK Saxena,B...
The study of the high-pressure behavior of coesite is important to better constrain the metastable phase diagram of silica. Further crystallographic investigations are necessary for characterizing the structures of these metastable coesite forms. Crystalline or amorphous metastable phases derived from coe...
However, experimental determination of the nano-phase diagram is scarce since calorimetric measurements remain quite challenging at the nanoscale. Based on the size- dependent cohesive energy model, we developed a unified nano-thermodynamic model to investigate the effects of the size, shape, and ...
Provided the molecular weight of the polymer is high enough (10 6 or higher), near-equilibrium bridging flocculation of silica sphere suspensions by poly(ethylene oxide) (PEO) can be observed at high pH (8 or above) and low ionic strength (10 2 M or below). A diphasic zone, limited ...
and magnetic properties of the ThCr2Si2-type solid solution LaMn2(Ge1−xSix)2 (x = 0.0 to 1.0) have been investigated employing a combination of X-ray diffraction, magnetization and neutron diffraction measurements, which allowed establishing a magnetic composition-temperature phase diagram. ...
Synthesis of Metastable Phases in the Magnesium Spinel−Alumina System Intermediate compositions exhibit phases that fall well outside of the established phase diagram and provide insight into the structure of transition aluminas... TR Hinklin,RM Laine - 《Chemistry of Materials》 被引量: 51发表...
phase_diagram CHAPTER10:PHASEDIAGRAMS ISSUESTOADDRESS...•Whenwecombinetwoelements...whatequilibriumstatedoweget?•Inparticular,ifwespecify...then...--acomposition(e.g.,wt%Cu-wt%Ni),and--atemperature(T)Howmanyphasesdoweget?Whatisthecompositionofeachphase?Howmuchofeachphasedoweget?1 THE...
We map out a theoretical phase diagram of curved spherocylinders that displays stable NTB, twist-splay-bend, and splay-bend phases, and test the predictions against simulations. We show that the twist-splay-bend and splay-bend (smectic) phases present periodic density modulations due to non-...