Electrical conduction in sintered Cd2Sb2O7 pyrochlore

Li, B. R.; Zhang, J. L.

doi:10.1007/bf00722887

Cited by 2 publications

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“…Part of 18R‐LPSO phase located at the grain boundaries transformed into lamellar phase, which was uniformly distributed in the grain interior. According to the SAED patterns (Figure d), EDS results (Figure e,f), and XRD (Figure ) patterns, the uniformly lamellar phase was identified to be 14H‐LPSO phase, which is one type of LPSO phase . In addition, some novel spherical particles were observed, whereas the reticular W phase vanished.…”

Section: Resultsmentioning

confidence: 93%

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Enhanced Performance of Mg–Zn–Y–Mn Alloy via Minor Ca Addition

et al. 2019

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Herein, the effect of calcium (Ca) microalloying on the microstructure and mechanical properties of Mg94Zn2.5Y2.5Mn1 alloy is identified. The long‐period stacking‐ordered (LPSO) phase transformation mechanism during solid‐solution treatment and hot deformation behavior during extrusion process are analyzed. The role of minor (0.34 at%) Ca addition in the as‐cast alloy is related to the fine microstructure and abundant 18R‐LPSO phase. Furthermore, the precipitation of 14H‐LPSO phase is greatly induced by Ca addition in subsequent solid‐solution treatment. As for as‐extruded alloys, the dynamic precipitation behavior of W phase nanoparticles is found. The high‐density W phase nanoparticles suppress the dynamic recrystallization (DRX) behavior and inhibit the growth of dynamical recrystallized (DRXed) grains. The as‐extruded Ca‐modified alloy shows a superior mechanical property with yield strength (YS), ultimate tensile strength (UTS), and elongation of 400, 434 MPa, and 19.5%, respectively. The tiny microstructure, W phase nanoparticles, and kinky LPSO (both 18R and 14H type) phase are the reasons for the outstanding mechanical properties.

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Section: Resultsmentioning

confidence: 93%

“…However, few researches have reported the W phase nanoparticles' dynamic precipitation behavior in Mg–Zn–Y alloys containing LPSO and W phase during plastic deformation. In addition, in the Mg–Zn–Y alloys, the introduction of Mn element can refine the microstructure and enhance the thermostability of the alloys …”

Section: Introductionmentioning

confidence: 99%