麻豆视频

Raj group wishes Prof. Lilian Menezes a happy birthday!

In-situ X-ray Diffraction and Pair Distribution Function analysis at XPD at NSLS-II!

Abstract Recent work on reactive flash sintering of powders of two oxides, bismuth and of iron oxide, into pure single phase bismuth ferrite, which was accomplished in a few seconds at low furnace temperatures, is expanded to four constituents, alumina, lithia, zirconia and lanthana, to produce reasonably dense polycrystals of...

Rishi Raj Reseach group bids farewell to Rushi. Goodbye, Rushi!

Abstract Higher electric fields lower the temperature for the onset of flash. We explore the question 鈥渨hat can be the lowest temperature for initiating flash?鈥�. Constant heating rate experiments at increasing electric fields reveal a surprising characteristic: the Debye temperature emerges as a the lower bound for the onset of...

Raj group celebrated Spencer's birthday. Happy Birthday agian!

Viviana's poster titled "Powders of four elemental oxides transformed and sintered by reactive flash" and Bola's poster titled "Insights into reactive flash sintering of MgO-Al2O3-(8YSZ) by in situ synchrotron X-ray diffraction" win Best Poster award in the Graduate Student Poster Competition at the ECI conference in Tomar Portugal - Electric...

Abstract There is growing evidence that oxides of complex chemistries can be formed in one step by reactive flash sintering of their elemental constituents. Here we explore the temporal relationship between phase transformation and sintering by combining measurements of sintering with in鈥恠itu measurements of phase transformation. The experiments are carried...

Abstract The ionic conductivity of flash-sintered, polycrystalline 8鈥塵ol% yttria stabilized zirconia (8YSZ) was enhanced compared with that of conventionally-sintered specimens. Flash sintering was carried out at a furnace temperature of 850鈥壜癈 with an electric field of 100鈥塚 cm 鈥�1 to initiate flash. The current density limit was varied between 60...

Abstract We measure the sintering behavior of thin and thick films of ceramics made by stacking several layers of tapes. The stack thickness was varied from 0.12 to 0.50 mm. A powder pressed dog鈥恇one sample, ~1 mm thick served as the baseline. While all specimens exhibit flash sintering, the following...