phase field. A peritectic reaction occurred at 538.7 °C when Mg 2 Pb decomposed into a Mg-rich liquid and β' (a Mg-Pb compound containing 35.15 at. pct Pb, or 0.3515 N Pb , the atomic fraction of Pb) which melted congruently at 548.5 °C, confirming the work of Eldridge et al....
In the Mg-Pb phase diagram shown, the intermediate phase (also an intermetallic compound) is Mg2 Pb, and is referred to as δ (delta) phase. At 200∘C, what is the relative amount of the δ (delta) phase in a 50wt% Pb alloy? A) 5...
The phase diagram mapped indicated that this quaternary system possesses the similar MPB region with that of other binary and ternary systems. The quaternary system PMN–PFN–PZ–PT possessed more competitive d33, kp, and Tr−t than that of Fe-free ternary 0.59Pb(Mg1/3Nb2/3)O3–0.05Pb...
samples of (1-x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 (PMN-xPT) with 30%<~x<~39% as a function of temperature around the morphotropic phase boundary, which is the line separating the rhombohedral and tetragonal phases in the phase diagram. The experiments have revealed very interesting features pr...
As can be seen from the Mg–Pb binary phase diagram in Fig. 4 (a), with the decrease of temperature, α-Mg is precipitated firstly, then Mg2Pb is precipitated in α-Mg, and the final solidification structure is α-Mg + Mg2Pb. As shown in the Mg–Al binary phase diagram in Fig. ...
一般得自己动手查文献，再把发表的数据做成数据库文件。这是一个费时间的工作，所以得靠自己。任何不...
The phase diagram of (PbMg1/3Nb2/3O3)1?x–(PbTiO3)x (PMN–PT) has been determined to high accuracy over the whole compositional range using birefringence imaging. A steep change has been detected in the thermal hysteresis of phase transitions in the morphotropic phase boundary region at x...
一般得自己动手查文献，再把发表的数据做成数据库文件。这是一个费时间的工作，所以得靠自己。任何不...
Ceramic samples of the solid solutions PbMg⅓Nb[sub 2/3]O[sub 3]-SrTiO[sub 3] are synthesized. The dielectric properties are studied and a phase diagram is constructed. The results obtained are discussed in terms of ideas concerning relaxor ferroelectrics for solid solutions on the PMN side...
Xu.Fragile phase stability in (1-x)Pb (Mg1/3Nb2/3O3)-xPbTiO3 crystals: A comparison of [001] and [110] field-cooled phase diagrams. Physical ... C Hu,J Li,D Viehland,... - 《Phys.rev.b》 被引量: 77发表: 2006年 Phase diagram of the ferroelectric relaxor $(1\\ensuremath{...