Towards unraveling the sintering process of two polystyrene particles polystyrene particles

Caroline Balemans; Prakhyat Hejmady; Ruth Cardinaels; Patrick D. Anderson

Korea-Australia Rheology Journal, Vol.31, No.4, 285-295, November, 2019

DOI10.1007/s13367-019-0028-z Export Citation

Towards unraveling the sintering process of two polystyrene particles polystyrene particles

Caroline Balemans^{1, 2}, Prakhyat Hejmady^{1, 2}, Ruth Cardinaels³, and Patrick D. Anderson^{3, †}

¹Polymer Technology, Department of Mechanical Engineering, indhoven University of Technology, Eindhoven 5600 MB, The Netherlands
²Brightlands Materials Center, Geleen 6167 RD, The Netherlands
³Polymer Technology, Department of Mechanical Engineering, Eindhoven University of Technology, Eindhoven 5600 MB, The Netherlands

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In this work, we study different rheological and thermal phenomena present during laser sintering of two polystyrene (PS) particles using fully resolved numerical simulations. In our analysis, we varied the laser power, the initial temperature and the thermal convection coefficient, used different rheological descriptions for the flow behavior and in addition studied the effect of the substrate (used in the experiments) on the temperature distribution of the system. Although we are not able to fully describe the results of the experiments with our simulations for the given parameter set, we obtained important insights in the significance of thermal initial and boundary conditions by systematically studying the sintering process.

Keywords:sintering;polymers;additive manufacturing;SLS;numerical simulations

[References]

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[1] Aid S, Eddhahak A, Ortega Z, Froelich D, Tcharkhtchi A, J. Mater. Sci., 52(19), 11725 (2017)

[2] Balemans C, Hulsen MA, Anderson PD, Appl. Sci., 7, 516 (2017)

[3] Balemans C, Hulsen MA, Anderson PD, Chem. Eng. Sci., 2019.

[4] Balemans C, Jaensson NO, Hulsen MA, Anderson PD, Addit. Manuf., 24, 528 (2018)

[5] Bellehumeur CT, Kontopoulou M, Vlachopoulos J, Rheol. Acta, 37(3), 270 (1998)

[6] Bellehumeur CT, Bisaria MK, Vlachopoulos J, Polym. Eng. Sci., 36(17), 2198 (1996)

[7] Berretta S, Wang Y, Davies R, Ghita OR, J. Mater. Sci., 51(10), 4778 (2016)

[8] Eshelby JD, Metall. Trans., 185, 796 (1949)

[9] Frenkel J, J. Phys., 9, 385 (1945)

[10] Grosser J, Furstenberg R, Kendziora CA, Papantonakis MR, Borchert J, McGill RA, Int. J. Heat Mass Transf., 55(25-26), 8038 (2012)

[11] Hejmady P, van Breemen LCA, Anderson PD, Cardinaels R, Soft Matter, 15, 1373 (2019)

[12] Hejmady P, Cleven L, van Breemen LCA, Anderson PD, Cardinaels R, Rev. Sci. Instrum., 90, 083905 (2019)

[13] Hooper R, Macosko CW, Derby JJ, Chem. Eng. Sci., 55(23), 5733 (2000)

[14] Hopper RW, J. Fluid Mech., 231, 349 (1990)

[15] Hornsby PR, Maxwell AS, J. Mater. Sci., 27, 2525 (1992)

[16] Hulsen MA, TFEM, a Toolkit for the Finite Element Method: User’s Guide, 2019.

[17] Jagota A, Dawson PR, Acta Metall., 36, 2551 (1988)

[18] Jagota A, Dawson PR, J. Am. Ceram. Soc., 73, 173 (1990)

[19] Kuczynski GC, Neuville B, Toner HP, J. Appl. Polym. Sci., 14, 2069 (1970)

[20] Kuiken HK, J. Fluid Mech., 214, 503 (1990)

[21] Martinezherrera JI, Derby JJ, AIChE J., 40(11), 1794 (1994)

[22] Martinez-Herrera JI, Derby JJ, J. Am. Ceram. Soc., 78, 645 (1995)

[23] Pokluda O, Bellehumeur CT, Vlachopoulos J, AIChE J., 43(12), 3253 (1997)

[24] Ross JW, Miller WA, Weatherly GC, J. Appl. Phys., 52, 3884 (1981)

[25] Scribben E, Baird D, Wapperom P, Rheol. Acta, 45(6), 825 (2006)

[26] van de Vorst GAL, J. Fluid Mech., 257, 667 (1993)

[27] van de Vorst GAL, Eng. Anal. Bound. Elem., 14, 193 (1994)

[28] van de Vorst GAL, Mattheij RMM, Computing, 49, 239 (1992)

[29] van de Vorst GAL, Mattheij RMM, Kuiken HK, J. Comput. Phys., 100, 50 (1992)

[30] Zhou H, Derby JJ, J. Am. Ceram. Soc., 81, 533 (1998)