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Niranjan Parab
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Keyhole threshold and morphology in laser melting revealed by ultrahigh-speed x-ray imaging
R Cunningham, C Zhao, N Parab, C Kantzos, J Pauza, K Fezzaa, T Sun, ...
Science 363 (6429), 849-852, 2019
7582019
Critical instability at moving keyhole tip generates porosity in laser melting
C Zhao, ND Parab, X Li, K Fezzaa, W Tan, AD Rollett, T Sun
Science 370 (6520), 1080-1086, 2020
3952020
Pore elimination mechanisms during 3D printing of metals
SMH Hojjatzadeh, ND Parab, W Yan, Q Guo, L Xiong, C Zhao, M Qu, ...
Nature communications 10 (1), 3088, 2019
3132019
Defects and anomalies in powder bed fusion metal additive manufacturing
A Mostafaei, C Zhao, Y He, SR Ghiaasiaan, B Shi, S Shao, N Shamsaei, ...
Current Opinion in Solid State and Materials Science 26 (2), 100974, 2022
2462022
In-situ full-field mapping of melt flow dynamics in laser metal additive manufacturing
Q Guo, C Zhao, M Qu, L Xiong, SMH Hojjatzadeh, LI Escano, ND Parab, ...
Additive Manufacturing 31, 100939, 2020
2082020
In-situ characterization and quantification of melt pool variation under constant input energy density in laser powder bed fusion additive manufacturing process
Q Guo, C Zhao, M Qu, L Xiong, LI Escano, SMH Hojjatzadeh, ND Parab, ...
Additive Manufacturing 28, 600-609, 2019
2072019
Direct observation of pore formation mechanisms during LPBF additive manufacturing process and high energy density laser welding
SMH Hojjatzadeh, ND Parab, Q Guo, M Qu, L Xiong, C Zhao, LI Escano, ...
International Journal of Machine Tools and Manufacture 153, 103555, 2020
2052020
Ultrafast X-ray imaging of laser–metal additive manufacturing processes
ND Parab, C Zhao, R Cunningham, LI Escano, K Fezzaa, W Everhart, ...
Journal of synchrotron radiation 25 (5), 1467-1477, 2018
1862018
Types of spatter and their features and formation mechanisms in laser powder bed fusion additive manufacturing process
ZA Young, Q Guo, ND Parab, C Zhao, M Qu, LI Escano, K Fezzaa, ...
Additive Manufacturing 36, 101438, 2020
1592020
Real time observation of binder jetting printing process using high-speed X-ray imaging
ND Parab, JE Barnes, C Zhao, RW Cunningham, K Fezzaa, AD Rollett, ...
Scientific reports 9 (1), 2499, 2019
1522019
Universal scaling laws of keyhole stability and porosity in 3D printing of metals
Z Gan, OL Kafka, N Parab, C Zhao, L Fang, O Heinonen, T Sun, WK Liu
Nature communications 12 (1), 2379, 2021
1422021
Effect of Laser-Matter Interaction on Molten Pool Flow and Keyhole Dynamics
N Kouraytem, X Li, R Cunningham, C Zhao, N Parab, T Sun, AD Rollett, ...
Physical Review Applied 11 (6), 064054, 2019
1382019
Effect of laser-matter interaction on molten pool flow and keyhole dynamics
N Kouraytem, X Li, R Cunningham, C Zhao, N Parab, T Sun, AD Rollett, ...
Physical Review Applied 11 (6), 064054, 2019
1382019
In-situ high-speed X-ray imaging of piezo-driven directed energy deposition additive manufacturing
SJ Wolff, H Wu, N Parab, C Zhao, KF Ehmann, T Sun, J Cao
Scientific reports 9 (1), 962, 2019
1232019
Bulk-Explosion-Induced Metal Spattering During Laser Processing
C Zhao, Q Guo, X Li, N Parab, K Fezzaa, W Tan, L Chen, T Sun
Physical Review X 9 (2), 021052, 2019
1222019
Revealing particle-scale powder spreading dynamics in powder-bed-based additive manufacturing process by high-speed x-ray imaging
LI Escano, ND Parab, L Xiong, Q Guo, C Zhao, K Fezzaa, W Everhart, ...
Scientific reports 8 (1), 15079, 2018
1162018
Experimental assessment of fracture of individual sand particles at different loading rates
ND Parab, B Claus, MC Hudspeth, JT Black, A Mondal, J Sun, K Fezzaa, ...
International Journal of Impact Engineering 68, 8-14, 2014
992014
High speed synchrotron x-ray phase contrast imaging of dynamic material response to split Hopkinson bar loading
M Hudspeth, B Claus, S Dubelman, J Black, A Mondal, N Parab, ...
Review of Scientific Instruments 84 (2), 2013
992013
Crash analysis of a conceptual electric vehicle with a damage tolerant battery pack
J Kukreja, T Nguyen, T Siegmund, W Chen, W Tsutsui, K Balakrishnan, ...
Extreme Mechanics Letters 9, 371-378, 2016
912016
In situ X-ray imaging of pore formation mechanisms and dynamics in laser powder-blown directed energy deposition additive manufacturing
SJ Wolff, H Wang, B Gould, N Parab, Z Wu, C Zhao, A Greco, T Sun
International Journal of Machine Tools and Manufacture 166, 103743, 2021
892021
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