In this paper, we introduce second-order numerical schemes for the modified phase field crystal (MPFC) model that are decoupled, linear, positivity-preserving, and unconditionally energy-stable. These schemes a
Modified phase field crystal equationEnergy stabilityFourier spectral methodThe phase field crystal (PFC) model was extended to the modified phase field crystal (MPFC) model, which is a sixth-order nonlinear damped wave equation, to include not only diffusive dynamics but also elastic interactions. ...
Phase-field crystals; Solid-liquid; Nano-structure; 机译:相场晶体固液纳米结构; 入库时间 2022-08-18 09:40:05 相似文献 外文文献 中文文献 专利 1. A modified two-mode phase-field crystal model applied to face-centered cubic and body-centered cubic orderings [J] . Asadi Ebrahim, Zaeem...
www.nature.com/scientificreports OPEN Reversible electric‑field‑induced phase transition in Ca‑modified NaNbO3 perovskites for energy storage applications Seiyu Aso 1, Hiroki Matsuo 2* &Yuji Noguchi 3* Sodium niobate (NaNbO3) is a potential material for lead-free...
(Fig. 3d). XRD results show that the phase keeps unchanged after adding a small amount of CNTs (Fig. 4). However, the intensity of NOF-0.5CNTs sample decreases rapidly, compared with that of pure NOF. The possible cause is that the crystallinity of CNTs is much lower than that of NOF...
6. However, the so called "non-polar phase" is too stable to induce a ferroelectric state out of a relaxor state under the same external applied electric field in N5 and N6, as shown in Figs. 6(e) and 6(f), respectively. The discharged energy density is obtained by integrating the ...
photonic crystal microcavities and plasmonic metal nanoparticles. These two systems have largely been developed independently, but the underlying physical mechanisms are the same. Comparing the two provides insight into emission modification and illustrates some of the subtleties involved in interpreting experi...
Regarding the crystal phase compositions, it is well known that anatase – due to its large band gap (3.2 eV) – does not absorb visible light, whereas rutile has a narrower band gap (3.02 eV) making the absorption of visible light possible to a certain extent; a fact that can have a...
First, surface morphology of clay/fumed silica nanoparticles (CS-NPs) dispersed in the bitumen sample was studied using observations from field emission scanning electron microscopy (FESEM). Then, modified bitumen samples were prepared with different volume fractions of CS-NPs, to study the impact ...
(f) The filtrate of (a) was mixed with the gel of (e) and mixed until a homogeneous phase appeared. The overall molar composition of the obtained reaction mixture was: SiO2 /B2 O3 =390.7 Na/SiO2 =0.28 TPA/SiO2 =0.08 OH- /SiO2 =0.092 H2 O/SiO2 =40.49 Zn/SiO2 =0.078 ...