mohsenzaeem's blog

Phase-field modeling of crack propagation in polycrystalline materials

Submitted by mohsenzaeem on Mon, 09/28/2020 - 16:17

phase-field modeling; crack; fracture; polycrystalline

A phase-field model based on a modified form of the regularized formulation of Griffith’s fracture theory is presented to investigate intergranular and transgranular crack propagations in polycrystalline brittle materials. Grains and grain boundaries are incorporated in the crack initiation and propagation model based on a phase-field model for grain growth, in which the elastic anisotropy varies based on the grain orientation angle, and the grain boundary energy is related to the misorientation angle of the adjacent grains.

A new planner BCN lateral heterostructure with outstanding strength and defect-mediated superior semiconducting to conducting properties

Submitted by mohsenzaeem on Tue, 09/22/2020 - 04:56

Motivated by the recent synthesis of boron-carbon-nitride (BCN) monolayers with different atomic compositions, we propose a novel planar BCN lateral heterostructure with a combination of graphene and hexagonal boron nitride (h-BN) counterparts. Density functional theory (DFT) and classical molecular dynamics (CMD) simulations are integrated to examine the effects of defects (vacancy and Stone-Wales (SW) defects) and temperature on the physical properties of the BCN heterostructure.

Predicting effective fracture toughness of ZrB2-based ultra-high temperature ceramics by phase-field modeling

Submitted by mohsenzaeem on Mon, 06/01/2020 - 19:27

research

fracture toughness; phase-field modeling; composite cermics; ZrB2

Open Access
A. Emdadi, J. Watts, W.G. Fahrenholtz, G.E. Hilmas, and M. Asle Zaeem. Predicting effective fracture toughness of ZrB2 based ultra-high temperature ceramics by phase-field modeling. Materials & Design 192 (2020) 108713 (11 pages).

On the elastocaloric effect in CuAlBe shape memory alloys: A quantitative phase-field modeling approach

Submitted by mohsenzaeem on Thu, 05/28/2020 - 00:44

research

Elastocaloric; Phase-Field Modeling; CuAlBe

C. Cissé and M. Asle Zaeem. On the elastocaloric effects in CuAlBe shape memory alloys: A quantitative phase-field modeling approach. Computational Materials Science 183 (2020) 109808 (12 pages).

Strain-induced work function in h-BN and BCN monolayers

Submitted by mohsenzaeem on Fri, 05/22/2020 - 06:11

research

2D Materials; h-BN; BCN; work function; strain

Thomas, M.S. Manju, K.M. Ajith, S.U. Lee and M. Asle Zaeem. Strain-induced work function in h-BN and BCN monolayers. Physica E: Low-dimensional Systems andNanostructures 123 (2020) 114180 (9 pages).

A Phase-Field Model for Non-Isothermal Phase Transformation and Plasticity in Polycrystalline Yttria-Stabilized Tetragonal Zirconia

Submitted by mohsenzaeem on Mon, 04/20/2020 - 03:18

research

Phase field model; Elastoplastic; Zirconia

C. Cissé and M. Asle Zaeem. A phase-field model for non-isothermal phase transformation and plasticity in polycrystalline yttria-stabilized tetragonal zirconia. Acta Materialia 191 (2020) 111-123.

Stone–Wales Defect Induced Performance Improvement of BC3 Monolayer for High Capacity Lithium-Ion Rechargeable Battery Anode Applications

Submitted by mohsenzaeem on Sat, 03/14/2020 - 05:00

research

2D Materials; Boron Carbide; Lithium-Ion Rechargeable Battery

S. Thomas, A. Kulangara Madam, and M. Asle Zaeem. Stone-Wales defect induced performance improvement of BC3 monolayer for high capacity lithium-ion rechargeable battery anode applications. The Journal of Physical Chemistry C (2020) (10 pages).

Fatigue-resistant high-performance elastocaloric materials made by additive manufacturing. Science 366 (6469) (2019) 1116-1121

Submitted by mohsenzaeem on Thu, 01/30/2020 - 16:34

research

elastocaloric materials; additive manufacturing

H. Hou, E. Simsek, T. Ma, N.S. Johnson, S. Qian, C. Cissé, D. Stasak, N. Al Hasan, L. Zhou, Y. Hwang, R. Radermacher, V.I. Levitas, M.J. Kramer, M. Asle Zaeem, A.P. Stebner, R.T. Ott, J. Cui, I. Takeuchi. Fatigue-resistant high-performance elastocaloric materials made by additive manufacturing. Science 366 (6469) (2019) 1116-1121.

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