<div dir="ltr"><br clear="all"><div class="gmail_quote"><div dir="ltr"><p style="text-align:center;clear:both"><img src="cid:07c2c5fe-c0c8-4606-a898-a132bf4fe474" alt="SDSU_CSRC Logo.jpg" style="margin-left:1em;margin-right:1em"></p><p class="MsoNormal" align="center" style="line-height:normal;text-align:center"><span style="font-family:Verdana,sans-serif;color:black"><br><br>DATE:</span><span style="font-size:10pt;font-family:Verdana,sans-serif;color:black"> </span><span style="font-size:13.5pt;font-family:Verdana,sans-serif;color:black"> <br></span><b><span style="font-family:Verdana,sans-serif"><font size="4">Friday, May 29, 2020</font></span></b></p><p class="MsoNormal" align="center" style="line-height:normal;text-align:center"><b><span style="font-size:18pt;font-family:Verdana,sans-serif"><br></span></b></p><p class="MsoNormal" align="center" style="line-height:normal;text-align:center"><span style="font-size:10pt;font-family:Verdana,sans-serif;color:black"></span></p><p class="MsoNormal" align="center" style="line-height:normal;text-align:center"><span style="font-family:Verdana,sans-serif;color:black"><br></span></p><div dir="ltr"><p class="MsoNormal" align="center" style="margin-top:1em;margin-bottom:1em;line-height:normal;text-align:center"><span style="font-size:10pt;font-family:Verdana,sans-serif;color:black"></span></p><p class="MsoNormal" align="center" style="margin-top:1em;margin-bottom:1em;line-height:normal;text-align:center"><span style="font-family:Verdana,sans-serif;color:black"></span></p><p class="MsoNormal" align="center" style="margin-top:1em;margin-bottom:1em;line-height:normal;text-align:center"><span style="font-family:Verdana,sans-serif;color:black">TITLE:</span><span style="font-size:10pt;font-family:Verdana,sans-serif;color:black"><br></span></p><p class="MsoNormal" align="center" style="margin-top:1em;margin-bottom:1em;line-height:normal;text-align:center"><span style="font-size:10pt;font-family:Verdana,sans-serif;color:black"></span></p><p class="MsoNormal" align="center" style="margin-top:1em;margin-bottom:1em;line-height:normal;text-align:center"><font size="6"><span style="font-family:verdana,sans-serif"></span></font></p><p class="MsoNormal" align="center" style="margin-top:1em;margin-bottom:1em;line-height:normal;text-align:center"><font size="6"><span style="font-family:verdana,sans-serif"><b><span style="background-image:none;background-position:0% 0%;background-repeat:repeat"></span></b></span></font></p><div style="text-align:center"><span style="color:rgb(0,0,0);text-align:left"><font face="verdana, sans-serif" size="4"><b>Silica-Based Glasses: Realizing Process-Structure-Property Connections Through Computational Modeling</b></font></span><br></div><div style="text-align:center"><span style="font-family:verdana,sans-serif"><font size="6"><b><br></b></font></span><span style="font-family:verdana,sans-serif"><font size="6"><b></b></font></span><p class="MsoNormal" style="margin-top:1em;margin-bottom:1em;line-height:normal"><b><span style="font-size:11pt;font-family:Arial,sans-serif;color:black"></span></b></p><span style="font-family:verdana,sans-serif"><font size="6"><b></b></font></span><span style="font-family:verdana,sans-serif"><font size="6"><b><span style="font-size:12pt;font-family:"Times New Roman",serif"></span></b></font></span><span style="font-family:verdana,sans-serif"><font size="6"><b></b></font></span><span style="font-family:verdana,sans-serif"><font size="6"><b><span style="font-size:11pt"></span></b></font></span></div><p class="MsoNormal" align="center" style="margin-top:1em;margin-bottom:1em;line-height:normal;text-align:center"><span style="font-family:Verdana,sans-serif;color:black"></span></p><p class="MsoNormal" align="center" style="margin-top:1em;margin-bottom:1em;line-height:normal;text-align:center"><span style="font-family:Verdana,sans-serif;color:black"></span></p><p class="MsoNormal" align="center" style="margin-top:1em;margin-bottom:1em;line-height:normal;text-align:center"><span style="font-family:Verdana,sans-serif;color:black"><br></span></p><p class="MsoNormal" align="center" style="margin-top:1em;margin-bottom:1em;line-height:normal;text-align:center"><span style="font-family:Verdana,sans-serif;color:black">TIME:</span><span style="font-size:10pt;font-family:Verdana,sans-serif;color:black"> </span><span style="font-size:13.5pt;font-family:Verdana,sans-serif;color:black"> <br></span><b><span style="font-family:Verdana,sans-serif"><font size="4">3:00-4:00PM</font></span></b></p><p class="MsoNormal" align="center" style="margin-top:1em;margin-bottom:1em;line-height:normal;text-align:center"><br><b><span style="font-size:18pt;font-family:Verdana,sans-serif"><span style="color:black"></span></span></b></p><p class="MsoNormal" align="center" style="margin-top:1em;margin-bottom:1em;line-height:normal;text-align:center"><span style="font-size:10pt;font-family:Verdana,sans-serif;color:black"> </span></p><p class="MsoNormal" align="center" style="margin-top:1em;margin-bottom:1em;line-height:normal;text-align:center"><span style="font-family:Verdana,sans-serif;color:black">LOCATION:<br></span><font face="verdana, sans-serif" size="4" style="font-weight:bold"><span style="color:black">Join Zoom Meeting -  </span><font color="#000000"><a href="https://sdsu.zoom.us/j/99859040967" target="_blank">https://SDSU.zoom.us/j/99859040967</a> <br></font></font><span style="font-weight:bold;font-family:Verdana,sans-serif"><font size="4"><br></font></span></p><p class="MsoNormal" align="center" style="margin-top:1em;margin-bottom:1em;line-height:normal;text-align:center"><span style="font-size:10pt;font-family:Verdana,sans-serif;color:black"> </span></p><p class="MsoNormal" align="center" style="margin-top:1em;margin-bottom:1em;line-height:normal;text-align:center"><span style="font-family:Verdana,sans-serif;color:black"></span></p><p class="MsoNormal" align="center" style="margin-top:1em;margin-bottom:1em;line-height:normal;text-align:center"><span style="font-family:Verdana,sans-serif;color:black">SPEAKER/BIO:</span><span style="font-size:13.5pt;font-family:Verdana,sans-serif;color:black"> </span></p><p class="MsoNormal" align="center" style="margin-top:1em;margin-bottom:1em;line-height:normal;text-align:center"><b><span style="font-size:18pt;font-family:Verdana,sans-serif"></span></b></p><p class="MsoNormal" align="center" style="margin-top:1em;margin-bottom:1em;line-height:normal;text-align:center"><span style="color:rgb(0,0,0);text-align:left"><font face="verdana, sans-serif" size="4"><b>Dr. Mark Wilson, Computational Materials and Data Science, Sandia National Laboratory</b></font></span><br></p><p class="MsoNormal" align="center" style="margin-top:1em;margin-bottom:1em;line-height:normal;text-align:center"><font size="4"><span style="font-family:verdana,sans-serif"><b><b><span style="font-size:18pt;font-family:Verdana,sans-serif"><span style="color:black"></span></span></b></b></span></font></p><p class="MsoNormal" align="center" style="margin-top:1em;margin-bottom:1em;line-height:normal;text-align:center"><b><span style="font-size:18pt;font-family:Verdana,sans-serif"></span></b></p><p class="MsoNormal" align="center" style="margin-top:1em;margin-bottom:1em;line-height:normal;text-align:center"><span style="font-family:Verdana,sans-serif;color:black"> </span></p><p class="MsoNormal" style="margin-top:1em;margin-bottom:1em;line-height:normal"><font size="2"><span style="font-family:Verdana,sans-serif;color:black"><br></span></font></p><p class="MsoNormal" style="margin-top:1em;margin-bottom:1em;line-height:normal"><font size="2"><span style="font-family:Verdana,sans-serif;color:black"><br></span></font></p><p class="MsoNormal" style="margin-top:1em;margin-bottom:1em;line-height:normal;text-align:center"><span style="font-family:Verdana,sans-serif;color:black"><font size="2">ABSTRACT:</font></span></p></div><div dir="ltr"><br></div><div dir="ltr"><font face="verdana, sans-serif"><font size="4"><span style="color:rgb(0,0,0)">Silica-based glasses are increasingly becoming vital components in our current technology, from data transmission lines, to electronics, to optical lenses, to smartphone screens. These materials are inherently brittle and subject to failure under shock, non-equilibrium stress states, or corrosive environments. Identifying new compositions and processing conditions that result in improved fracture resistance (i.e. a higher fracture toughness) is achievable through materials design approaches. However, discovery primarily remains an empirically determined procedure. Atomistic molecular dynamics can be a powerful tool in this application, providing a capability to probe how glass breaks and what compositions or microstructural features result in better material performance. In this talk, a novel numerical method to determine the fracture toughness from atomistic material representations will be demonstrated on vitreous silica-based glass compositions. Process-structure-property connections will then be explored using this measure to highlight the relationships between processing conditions, chemical composition, microstructural content, and material performance.</span><br style="color:rgb(0,0,0)"><br style="color:rgb(0,0,0)"><span style="color:rgb(0,0,0)">Sandia National Laboratories is a multi-mission laboratory managed and operated by National Technology and Engineering Solutions of Sandia, LLC., a wholly owned subsidiary of Honeywell International, Inc., for the U.S. Department of Energy’s National Nuclear Security Administration under contract DE-NA0003525.</span><br style="color:rgb(0,0,0)"></font><br></font></div><div dir="ltr"><font size="4"><font face="verdana, sans-serif"> </font><br></font></div><div dir="ltr"><font size="4"><span style="font-family:verdana,sans-serif"><br></span></font><p class="MsoNormal" style="margin:0in 5.2pt 0.0001pt 0in;line-height:13.91px"><br></p><span style="font-family:arial,sans-serif"><font size="4"></font></span></div><font size="4" face="verdana, sans-serif">Host: Jose Castillo and Arlette Baljon</font><br><div><span style="font-family:arial,sans-serif"><font size="4"><br></font></span></div><div><p class="MsoNormal" style="margin-top:1em;margin-bottom:1em;line-height:normal"><font face="verdana, sans-serif" size="4"><span style="font-weight:bold">Note:</span><span style="font-weight:bold"> </span>Recent videos from previous colloquium talks for <span style="text-align:center">Spring 2020 can be seen on the CSRC website in the colloquium archive section or on the </span><a href="https://www.youtube.com/channel/UCN0ZEztlmyDqG2pm-Rle_Eg/feed" style="text-align:center" target="_blank">CSRC YouTube page here</a><span style="text-align:center">.</span></font></p></div></div>

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