The changes in c(p) values at T-g were related only to the changes in configurational entropy. In our approach the changes in thermal, anharmonic or wobbling types of motion, contributing to the thermal entropy term, have been taken into account and these changes quantitatively result in ...
The dominance of entropy over the Gibbs free energy led to the formation of a single-phase HEO, where the cation sublattice was substituted with equimolar amounts of five different cations. This led to increased configurational entropy; thus the principles of HEO formation were similar to those ...
(3) Here the last term accounts for the configurational entropy in the alloy. At each temperature, this gives us a x (Se content) dependent function: i.e. ΔG(x, mixture at T = 0 K, where the entropy term iTn)E. Fqo. r(3a)prseeduudcoe-sbtionzaerryoa.lAlotyvoefry...
Here we show that changes in configurational entropy due to metastable micro(scopic)states can lead to quantitative prediction of these anomalies. We integrate the Maxwell relation, statistic mechanics, and first-principles calculations to demonstrate that when the entropy is increased by pressure, NTE...
231.12 221.65 Ec, kJ mol−1 Mahadevan 105.17 97.59 94.09 Modified Augis and Bennett 99.14 93.12 89.62 Kissinger 97.02 88.65 85.14 Affify 80.31 92.87 92.87 Many theories have been put forth discussing the glass transition phenomenon.1,5 Viscosity and entropy are involved in many of them. ...
configurational entropy of mixing (fig. S8). The CTS process leads to solid solution MMNPs (i.e., HEA-NPs), where arbitrary metallic elements are completely mixed to maximize the mixing entropy (DS mix ) (Fig. 2A). We demonstrated the versatility by synthesizing a series of multi- element...
Investigated HECs are high entropy based rare earth aluminate, rare earth phosphate, rare earth zirconate, rare earth silicate and pyrochlore. Full size image While the APS-based GZO coating has shown its ability to effectively combat the molten CMAS, there exhibits a few shortcomings for the GZO...
The very large magnitude of S is suggested to originate from the configurational entropy of charge carriers enhanced by their spin and orbital degeneracy between Co3+ and Co4+ sites. In addition, based on the analysis of the temperature dependence of S(T) and ρ(T), the high temperature ...
High-entropy alloys (HEAs) are a new generation of materials that exhibit unique characteristics and properties, and are demonstrating potential in the for
(related to free energy of mixing) to achieve the same moisture content. Changing the crosslink density also affects the configurational entropy of the polymer network on swelling and the glass transition temperature [157]. This crosslinking can occur by the formation of covalent bonds due to ...