naa a22 4500 510771270 CHVBK 20180411083215.0 cr unu---uuuuu 180411e20131001xx s 000 0 eng 10.1007/s11837-013-0717-x doi (NATIONALLICENCE)springer-10.1007/s11837-013-0717-x A Predictive Model for Whisker Formation Based on Local Microstructure and Grain Boundary Properties [Elektronische Daten] [P. Sarobol, Y. Wang, W. Chen, A. Pedigo, J. Koppes, J. Blendell, C. Handwerker] Whisker and hillock formation in thin films is well known as a highly local mechanism for stress relaxation, where in many cases, only a few whiskers form out of thousands of grains in a film. In this article, the microstructural characteristics for specific grains to form whiskers in β-Sn films are discussed in light of our recent whisker growth model, establishing a relationship among grain boundary sliding limited Coble creep, surface grain geometry, and film stress for different stress conditions, including for thermal cycling. Through our recent finite-element simulations of stresses induced by room-temperature aging and thermal cycling of textured microstructures, the role of elastic and thermoelastic anisotropy in creating preferred whisker formation sites and the general propensity of a film to form whiskers have been proposed for a range of β-Sn film textures. Taken together, these models suggest a strategy for identifying the effects of local microstructure and β-Sn anisotropy on whisker formation. If these predictions are accurate, then whisker growth risk may be effectively reduced by engineering film microstructures and textures for specific applications and stress conditions. TMS, 2013 Sarobol P. School of Materials Engineering, Purdue University, 47907, West Lafayette, IN, USA aut Wang Y. School of Materials Engineering, Purdue University, 47907, West Lafayette, IN, USA aut Chen W. School of Materials Engineering, Purdue University, 47907, West Lafayette, IN, USA aut Pedigo A. School of Materials Engineering, Purdue University, 47907, West Lafayette, IN, USA aut Koppes J. School of Materials Engineering, Purdue University, 47907, West Lafayette, IN, USA aut Blendell J. School of Materials Engineering, Purdue University, 47907, West Lafayette, IN, USA aut Handwerker C. School of Materials Engineering, Purdue University, 47907, West Lafayette, IN, USA aut JOM Springer US; http://www.springer-ny.com 65/10(2013-10-01), 1350-1361 1047-4838 65:10<1350 2013 65 11837 https://doi.org/10.1007/s11837-013-0717-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11837-013-0717-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sarobol P. School of Materials Engineering, Purdue University, 47907, West Lafayette, IN, USA aut NATIONALLICENCE 700 1- Wang Y. School of Materials Engineering, Purdue University, 47907, West Lafayette, IN, USA aut NATIONALLICENCE 700 1- Chen W. School of Materials Engineering, Purdue University, 47907, West Lafayette, IN, USA aut NATIONALLICENCE 700 1- Pedigo A. School of Materials Engineering, Purdue University, 47907, West Lafayette, IN, USA aut NATIONALLICENCE 700 1- Koppes J. School of Materials Engineering, Purdue University, 47907, West Lafayette, IN, USA aut NATIONALLICENCE 700 1- Blendell J. School of Materials Engineering, Purdue University, 47907, West Lafayette, IN, USA aut NATIONALLICENCE 700 1- Handwerker C. School of Materials Engineering, Purdue University, 47907, West Lafayette, IN, USA aut NATIONALLICENCE 773 0- JOM Springer US; http://www.springer-ny.com 65/10(2013-10-01), 1350-1361 1047-4838 65:10<1350 2013 65 11837 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer