Recent News

Rishi Raj Reseach group bids farewell to Thomas and Niriaina. Goodbye, Thomas and Niriaina!

Abstract A novel, non-radiative mechanism is reported by which Frenkel pairs of vacancies and interstitials are generated in molar concentrations far above thermal equilibrium. This mechanism is demonstrated in molecular dynamics (MD) simulations of an aluminum single crystal with a free surface. They suggest that three conditions must be fulfilled:...

Abstract The original flash sintering experiment was carried out by applying an electric field, and switching to current control at the onset of the flash, signaled by a rise in conductivity. Here, we consider experiments where the experiment is controlled from the very start, by injecting current, which is increased...

Abstract We show that flash experiments with three phase mixed‐powders of yttria stabilized zirconia (8YSZ), MgO, and α‐Al2O3 not only produce polycrystals of high density, but also the transformation of magnesia and alumina into single phase spinel. The presence of zirconia facilitates the onset of the flash. The sintering experiments...

Congratulations to Rushi on completion of his thesis and defense!

We are pleased to announce our lab member's, Rushi Kathiria's, M.S. defense! Title: In-Situ Measurements of the Elastic Modulus of zirconia polycrystals held in a state of Flash Induced by an Electric Field Research Advisor: Professor Rishi Raj Date: August 27, 2018 Time: 1:00 PM Location: ECEE 1B55C (Electrical Eng...

Mini-Symposium on Flash Sintering to Celebrate Marco Cologna’s Original Contribution: An Emphasis on In-Situ Methods and Interpretation August 7-8, 2018; University of Colorado Boulder Location: University Memorial Center(UMC) 415 (1669 Euclid Ave, Boulder, CO 80309) Since Marco Cologna’s seminal paper in 2010, flash sintering has expanded, drawing interest from many...

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

Devinder ended his postdoctoral researcher position in the Raj Group to begin his career at Indian Institute of Technology Patna. Congratulations Devinder! https://www.iitp.ac.in/index.php/departments/engineering/metallurgical-a...

In-situ synchrotron experiments at XPD at NSLS-II (BNL) with Daniel Shoemaker's Group!