Publications

Ashwin Shahani

Pronouns: He/Him/His

Associate Professor

shahani@umich.edu

2034 H.H. Dow
T: (734) 764-5648

Bio

Publications


  1. P. Chao, G. Lindemann, and A.J. Shahani, “Pseudo-4D View of the Growth and Form of Locked Eutectic Colonies,” submitted (2021).

  2. I. Han, K.L. Wang, A.T. Cadotte, Z. Xi, H. Parsamehr, X. Xiao, S.C. Glotzer, and A.J. Shahani, “Formation of a Single Quasicrystal upon Collision of Multiple Grains,” Nature Comm. 12, 5790 (2021). DOI: 10.1038/s41467-021-26070-9

  3. Y. Wang, J. Gao, W. Sun, and A.J. Shahani, “In situ Observation of Faceted Growth and Morphological Instability of a Complex-regular Eutectic in Zn-Mg-Al System,” Scripta Mater. 206, 114224 (2022). DOI: 10.1016/j.scriptamat.2021.114224

  4. N. Lu, S. Moniri, M. Wiltse, J. Spielman, N. Senabulya, and A.J. Shahani, “Dynamics of Ga Penetration in Textured Al Polycrystal Revealed through Multimodal Three-dimensional Analysis,” Acta Mater. 217, 117145 (2021). DOI: 10.1016/j.actamat.2021.117145

  5. M.J. Higgins, J. Kang, G. Huang, D. Montiel, N. Lu, H. Liu, Y.-F. Shen, P. Staublin, J.-S. Park, J.D. Almer, P. Kenesei, P.G. Sanders, R.M. Suter, K. Thornton, and A.J. Shahani, “Anomalous Strain-energy-driven Macroscale Translation of Grains during Non-isothermal Annealing,” Phys. Rev. Mater. 5, L070401 (2021). DOI: 10.1103/PhysRevMaterials.5.L070401

  6. N. Arai, T. Stan, S. Macfarland, P.W. Voorhees, N.S. Muyanja, A.J. Shahani, and K.T. Faber, “Coarsening of Dendrites in Freeze-cast Ceramic Systems,” Acta Mater. 215, 117039 (2021). DOI: 10.1016/j.actamat.2021.117039

  7. C.W. Reese, A. Gladstein, P. Shevchenko, X. Xiao, A.J. Shahani, and A.I. Taub, “Real-time Visualization of Particle Evolution during Reactive Flux-assisted Processing of Aluminum Melts,” Scripta Mater. 201, 113978 (2021). DOI: 10.1016/j.scriptamat.2021.113978

  8. Y. Wang, J. Gao, P. Chao, N.S. Muyanja, R.H. Mathiesen, and A.J. Shahani, “In situ Evidence for Impurity-induced Formation of Eutectic Colonies in an Interdendritic Liquid” Mater. Lett. 292, 129637 (2021). DOI: 10.1016/j.matlet.2021.129637

  9. P. Chao, X. Xiao, and A.J. Shahani, “Flexible Unsupervised Binary Change Detection Algorithm Identifies Phase Transitions in Continuous Image Streams,” Integr. Mater. Manuf. Innov. 10, 72 (2021). DOI: 10.1007/s40192-021-00199-3. Read paper →

  10. N. Lu,* J. Kang,* and A.J. Shahani, “Origins of Non-random Particle Distributions and Implications to Abnormal Grain Growth in an Al-3.5wt%Cu Alloy,” Metall. Mater. Trans. A 52, 914 (2021). (*equal contribution) DOI: 10.1007/s11661-020-06125-0

  11. R.J. Shalloo, S.J.D. Dann, J.-N. Gruse, C.I.D. Underwood, A.F. Antoine, C. Arran, M. Backhouse, C.D. Baird, M.D. Balcazar, N. Bourgeois, J.A. Cardarelli, P. Hatfield, J. Kang, K. Krushelnick, S.P.D. Mangles, C.D. Murphy, N. Lu, J. Osterhoff, K. Poder, P.P. Rajeev, C.P. Ridgers, S. Rozario, M.P. Selwood, A.J. Shahani, D.R. Symes, A.G.R. Thomas, C. Thornton, Z. Najmudin, M.J.V. Streeter, “Automation and Control of Laser Wakefield Accelerators using Bayesian Optimisation,” Nature Comm. 11, 6355 (2020). DOI: 10.1038/s41467-020-20245-6

  12. A.J. Shahani and A.J. Clarke, “Processing Metallic Materials far from Equilibrium,” MRS Bull. 45, 906 (2020). DOI: 10.1557/mrs.2020.269

  13. I. Han, J.T. McKeown, L. Tang, C.-Z. Wang, H. Parsamehr, Z. Xi, Y.-R. Lu, M.J. Kramer, and A. J. Shahani, “Dynamic Observation of Dendritic Quasicrystal Growth upon Laser-induced Solid-state Transformation,” Phys. Rev. Lett. 125, 195503 (2020). DOI: 10.1103/PhysRevLett.125.195503

  14. Y. Wang, P. Chao, S. Moniri, J. Gao, T. Volkenandt, V. De Andrade, and A.J. Shahani, “Integrated Three-dimensional Characterization of Reactive Phase Formation and Coarsening during Isothermal Annealing of Metastable Zn-3Mg-4Al Eutectic,” Mater. Char. 170, 110685 (2020). DOI: 10.1016/j.matchar.2020.110685

  15. (invited) A.J. Shahani, X. Xiao, E.M. Lauridsen, and P.W. Voorhees, “Characterization of Metals in Four Dimensions,” Mater. Res. Lett. 8, 462 (2020). DOI: 10.1080/21663831.2020.1809544

  16. (invited) Y. Wang, J. Gao, Y. Ren, V. De Andrade, and A.J. Shahani, “Formation of a Three-phase Spiral Structure due to Competitive Growth of a Peritectic Phase with a Metastable Eutectic,” JOM 72, 2965 (2020). DOI: 10.1007/s11837-020-04237-x

  17. S. Moniri, X. Xiao, and A.J. Shahani, “Singly-twinned growth of Si Crystals upon Chemical Modification,” Phys. Rev. Mater. 4, 063403 (2020). DOI: 10.1103/PhysRevMaterials.4.063403

  18. N. Lu,* J. Kang,* N. Senabulya, R. Keinan, N. Gueninchault, and A.J. Shahani, “Dynamics of Particle-assisted Abnormal Grain Growth Revealed through Integrated Three-dimensional Microanalysis,” Acta Mater. 195, 1 (2020). (*equal contribution) DOI: 10.1016/j.actamat.2020.04.049

  19. C.W. Reese, A. Gladstein, J.M. Fedors, V. De Andrade, B. Mishra, A.J. Shahani, and A.I. Taub, “In situ Al-TiC Composites Fabricated by Self-propagating High-temperature Reaction: Insights on Reaction Pathways and their Microstructural Signatures,” Metall. Mater. Trans. A 51, 3587 (2020). DOI: 10.1007/s11661-020-05786-1

  20. S. Antonelli, A. Ronne, I. Han, M. Ge, B. Layne, A.J. Shahani, K. Iwamatsu, J. Wishart, S. Hulbert, W.-K. Lee, Y.-C. Chen-Wiegart, and X. Xiao, “Versatile Compact Heater Design for In situ Nano-tomography by Transmission X-ray Microscopy,” J. Synchrotron Rad. 27, 746 (2020). DOI: 10.1107/S1600577520004567

  21. G.R. Lindemann and A.J. Shahani, “Accelerated Discovery of the Al-Ag-Cu Eutectic Coupled Zone through Genetic Optimization,” J. Alloy Compd. 827, 154124 (2020). DOI: 10.1016/j.jallcom.2020.154124

  22. (cover) S. Moniri, H. Bale, T. Volkenandt, Y. Wang, J. Gao, T. Lu, K. Sun, R.O. Ritchie, and A.J. Shahani, “Multi-step Crystallization of Self-organized Spiral Eutectics,” Small 16, 1906146 (2020). DOI: 10.1002/smll.201906146. Highlighted in Physics World and The Michigan Engineer.

  23. N. Senabulya and A.J. Shahani, “Growth Interactions between Icosahedral Quasicrystals,” Phys. Rev. Mater. 3, 093403 (2019). DOI: 10.1103/PhysRevMaterials.3.093403

  24. J. Kang,* N. Lu,* I. Loo, N. Senabulya, and A.J. Shahani, “PolyProc: A Modular Processing Pipeline for X-ray Diffraction Tomography,” Integr. Mater. Manuf. Innov. 8, 388 (2019). DOI: 10.1007/s40192-019-00147-2. (*equal contribution) See also our GitHub repository for codes.

  25. H. Parsamehr, T.-S. Chen, D.-S. Wang, M.-S. Leu, I. Han, Z. Xi, A.-P. Tsai, A.J. Shahani, and C.-H. Lai, “Thermal Spray Coating of Al-Cu-Fe Quasicrystals: Dynamic Observations and Surface Properties,” Materialia 8, 100432 (2019). DOI: 10.1016/j.mtla.2019.100432

  26. S. Moniri, X. Xiao, and A.J. Shahani, "The Mechanism of Eutectic Modification by Trace Impurities," Sci. Rep. 9, 3381 (2019). DOI: 10.1038/s41598-019-40455-3

  27. A.E. Hussein, N. Senabulya, M.J.V. Streeter, S.J.D. Dann, B. Kettle, F. Albert, N. Bourgeois, S. Cipiccia, J.M. Cole, E. Gerstmayr, I. G. González, A. Higginbotham, D.A. Jaroszynski, K. Falk, K. Krushelnick, N. Lemos, N.C. Lopes, C. Lumsden, O. Lundh, Y. Ma, S.P.D. Mangles, Z. Najmudin, P.P. Rajeev, M. Shahzad, M. Smid, R. Spesyvtsev, D.R. Symes, G. Vieux, J.C. Wood, A.J. Shahani, and A.G.R. Thomas, “Laser-wakefield Accelerators as Hard X-ray Sources for High-Resolution Imaging of Complex Microstructures,” Sci. Rep. 9, 3249 (2019). DOI: 10.1038/s41598-019-39845-4.

  28. Han, I, Xiao, X, Sun, H, and Shahani, A (2019). A Side-By-Side Comparison of the Solidification Dynamics of Quasicrystalline and Approximant Phases in the Al-Co-Ni System,  ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES, 75:281–296.

  29. Moniri, S and Shahani, A (2019). Chemical Modification of Degenerate Eutectics: A Review of Recent Advances and Current Issues,  JOURNAL OF MATERIALS RESEARCH, 34(1):20–34.

  30. Moniri, S, Xiao, X, and Shahani, A (2019). The Mechanism of Eutectic Modification by Trace ImpuritiesSCIENTIFIC REPORTS, 9:3381.

  31. Senabulya, N, Xiao, X, Han, I, and Shahani, A (2018). On the Kinetic and Equilibrium Shapes of Icosahedral Al-Pd-Mn Quasicrystals,  SCRIPTA MATERIALIA, 146:218–221.

  32. Zhou, J, Taylor, M, Melinte, G, Shahani, A, Dharmawardhana, C, Heinz, H, Voorhees, P, Perepezko, J, Bustillo, K, Ercius, P, and Miao, J (2018). Quantitative Characterization of High Temperature Oxidation Using Electron Tomography and Energy-Dispersive X-Ray Spectroscopy,  SCIENTIFIC REPORTS, 8:10239.

  33. Han, I, Xiao, X, and Shahani, A (2017). Probing the Growth and Melting Pathways of a Decagonal Quasicrystal in Real-Time,  SCIENTIFIC REPORTS, 7:17407.

  34. Shahani, AJ and Voorhees, PW (2016). Twin-Mediated Crystal Growth,  Journal Of Materials Research, 31(19):2936-2947.

  35. Shahani, AJ, Gulsoy, EB, Poulsen, SO, Xiao, X, and Voorhees, PW (2016). Twin-Mediated Crystal Growth: An Enigma Resolved,  Scientific Reports, 6.

  36. Shahani, AJ, Xiao, X, and Voorhees, PW (2016). The Mechanism of Eutectic Growth in Highly Anisotropic Materials,  Nature Communications, 7.

  37. Shahani, AJ, Xiao, X, Skinner, K, Peters, M, and Voorhees, PW (2016). Ostwald Ripening of Faceted Si Particles in An Al-Si-Cu Melt,  Materials Science And Engineering A-Structural Materials Properties Microstructure and Processing, 673:307-320.

  38. Weatherup, RS, Shahani, AJ, Wang, Z, Mingard, K, Pollard, AJ, Willinger, M, Schloegl, R, Voorhees, PW, and Hofmann, S (2016). In Situ Graphene Growth Dynamics on Polycrystalline Catalyst Foils,  Nano Letters, 16(10):6196-6206.

  39. Gibbs, JW, Mohan, KA, Gulsoy, EB, Shahani, AJ, Xiao, X, Bouman, CA, De Graef, M, and Voorhees, PW (2015). The Three-Dimensional Morphology of Growing Dendrites,  Scientific Reports, 5.

  40. Shahani, AJ, Gulsoy, EB, Roussochatzakis, VJ, Gibbs, JW, Fife, JL, and Voorhees, PW (2015). The Dynamics of Coarsening in Highly Anisotropic Systems: Si Particles in Al-Si Liquids,  Acta Materialia, 97:325-337.

  41. Gulsoy, EB, Shahani, AJ, Gibbs, JW, Fife, JL, and Voorhees, PW (2014). Four-Dimensional Morphological Evolution of an Aluminum Silicon Alloy Using Propagation-Based Phase Contrast X-ray Tomographic Microscopy,  Materials Transactions, 55(1):161-164.

  42. Shahani, AJ, Gulsoy, EB, Gibbs, JW, Fife, JL, and Voorhees, PW (2014). Integrated Approach to the Data Processing Of Four-Dimensional Datasets from Phase-Contrast X-Ray Tomography,  Optics Express, 22(20):24606-24621.

  43. Shahani, AJ, Wu, J, Wu, L, Wang, Q, and Zhou, X (2011). Morphological Transformations and Electrochemical Properties of Hydrothermally Synthesized MnO2 Nanostructures,  In: Solid State Ionic Devices 8 - Nemca, ed. by Wachsman, ED and Bock, C and Hunter, G and Traversa, E, vol. 33(40), pp. 185-193, Electrochem Soc (ECS); Luminescence & Display Mat (LDM); Sensor; Corrosion; High Temp Mat; Energy Technol; Battery; Phys & Analyt Electrochem; New Technol Subcomm. ECS Transactions (ISBN: 978-1-60768-250-9).