Effects of the second phase on hot tearing susceptibility of Mg-Zn-Y alloy

Highly Efficient and Stable White Light‐Emitting Diodes Using Perovskite Quantum Dot Paper

“…We compared the operation lifetime of the PQD paper based LED with other PQD LEDs in the literature, as shown in Figure 3b and Table S3 (Supporting Information). [9,10,18,19,42,43] Our PQD paper device reveals a much longer operation lifetime (240 h) than others, thus confirming the high stability of the PQD paper based LED and its potential for next-generation PQD lighting applications.…”

“…Most importantly, the studied LED exhibits a long operation lifetime of 240 h, which is much longer than other PQD-based white LEDs (Figure 3b). [9,10,18,19,42,43] The enhanced performance of our PQD paper LED device can be attributed to the QD structure within the cellulose paper. Surface engineering using controlling ligands to generate strong complexation on PQD surface is proven a useful technique for improving PQD stability.…”

Hot crack susceptibility of cast Mg97Y2Zn1

“…In References 19,26,30,33,34, 2 in terms of the first hot crack initiation temperature (T i ) and the temperature, at which the hot crack propagation is terminated (T f ). However, it should be noted that these data were obtained in solidification experiments, in which the temperature decrease was accompanied by a concurrent increase of the load, which was produced by the thermal contraction of the cooled material.…”

Influence of a low-frequency alternating magnetic field on hot tearing susceptibility of EV31 magnesium alloy

“…Figure 6 shows the cooling curve and its first derivative for EV31 with different magnetic field parameters. The baseline was determined using the Newton baseline method [6] . When the cooling curve has an inflection point and the temperature gradient shows a convex peak, latent crystallization heat is released, and a new phase precipitates within the liquid phase.…”

“…Addition of proper rare earth elements can refine the grain and reduce the hot tearing susceptibility (HTS) of the cast magnesium alloy. However, when the content of rare earth elements in the alloy is too high, the solidification temperature range of the alloy becomes larger and the HTS of the alloy increases [6] . In recent years, the alloy EV31 has drawn increasing attention in aerospace and biomedical R&D due to its strong solution strengthening and precipitation strengthening characteristics as well as its good creep resistance and corrosion resistance [7,8] .…”