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MSEGSA Halloween Costume Contest
by Benjamin Thomas Stegman 28 Oct '21

28 Oct '21

Hi All, In the spirit of Halloween, MSEGSA is putting on a Halloween Costume Contest on this coming Friday, 10/29, as a way of having some fun in the middle of the semester. Since there is no MSE 690 seminar on that Friday, we are planning to use ARMS 1010 as a sort of "runway" to model the spooky and silly costumes. The event will begin at 3:30PM and we will have some various pre-packaged candies for everyone to take home with them. Prizes for the top 3 are a $20 gift card of their choice, a $10 gift card of their choice, and an official MSEGSA mug, respectively. We would love 3-4 judges to rate all of the costumes and we figured the best people suited would be our professors, with their many years of trick-or-treating. So, if any professor is willing to take about an hour out of their schedule on Friday and partake in this fun event, we would really appreciate it! If you are interested, please reach out to me, and hope to see everyone there next Friday! Regards, Benjamin T. Stegman He/Him/His Ph.D. Candidate Materials Engineering Graduate Student Association President Materials Engineering Purdue University (513) 680-8121

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Preliminary Exam Seminar
by Morgan, Yuan-Yu Karen 28 Oct '21

28 Oct '21

Please consider attending this seminar: MATERIALS ENGINEERING SEMINAR "Mechanical Properties and Deformation Mechanisms of Ball Milled Nanocrystalline Al Alloys" By Xuanyu Sheng Purdue MSE Preliminary Exam Advisor: Professor Xinghang Zhang ABSTRACT Nanocrystalline aluminum alloys have gained specific interest in aerospace and automotive industries as they exhibit superior mechanical properties when comparing with their coarse grain counterparts. Mechanical milling (also referred to as ball milling frequently) is an effective method to produce nanostructured metals and composite powders and has been commonly employed to prepare nanocrystalline aluminum alloys. Ball milling techniques also promote significant grain refinement and alloying at atomic level, thus give rise to the significant improvement of mechanical properties. In this report, the microstructure, mechanical properties, and deformation mechanisms of ball-milled nanocrystalline aluminum alloy are discussed. When the grain size of nanocrystalline Al is below a critical value, competition of different deformation mechanisms may occur. The proposed models shed light on improving the mechanical properties of nanocrystalline aluminum alloys. Date: Nov 1, 2021 Time: 1:00 PM WebEx: https://purdue.webex.com/meet/xzhang98 Yuan-Yu Karen Morgan,Ph.D. Academic Advisor-Graduate Program School of Materials Engineering Neil Armstrong Hall of Engineering, Room 2217 765-494-4103 ymorgan(a)purdue.edu<mailto:ymorgan@purdue.edu>

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FW: ME Distinguished Seminar Series: Hawkins Lecture 10/28/21
by Stacey, Lisa A 28 Oct '21

28 Oct '21

Forwarding on behalf of Mechanical Engineering, reminder of today’s Distinguished Lecture, Dr. John Bischof, Depts. of Mechanical and Biomedical Engineering, Univ. of Minnesota Lisa Stacey Administrative Assistant to the Department Head School of Materials Engineering Neil Armstrong Hall of Engineering o: 765-494-4095 f: 765-494-1204 [3749DD84]<https://urldefense.proofpoint.com/v2/url?u=https-3A__www.purdue.edu_-3Futm-…> ________________________________ [cid:image002.png@01D7CBD9.A87F0F40]

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FW: Chemistry Analytical Seminar, Tuesday, Oct 26, 2021
by Son, Rosemary E 25 Oct '21

25 Oct '21

From: Hanna, Thomas J Sent: Monday, October 25, 2021 7:52 AM To: Mechanical Engineering Graduate Office <megradoffice(a)purdue.edu>; Elwell, Cathy L <celwell(a)purdue.edu>; Golden, Matt <goldenm(a)purdue.edu>; Ricksy, Jennifer R <jricksy(a)purdue.edu>; Zimmerman, Nicole K <nzimmerm(a)purdue.edu>; Son, Rosemary E <son39(a)purdue.edu>; Johnson, Beverly J <bevjohnson(a)purdue.edu>; Delaney, Morgan J <mdelane(a)purdue.edu> Subject: Chemistry Analytical Seminar, Tuesday, Oct 26, 2021 Please distribute the attached Analytical Seminar announcement for Tomorrow, Tuesday, Oct 26, 2021 ASAP in your respective areas or departments. Thank you, Tom Hanna Administrative Assistant to: Analytical Division of Chemistry Professors Claridge, Kenttämaa, A. Laskin, J. Laskin, McLuckey, Simpson, Wirth, C. Zhang Organic Division of Chemistry Professors Axelrod, Chmielewski, Lipton, Mao, Mei, Sintim Department of Chemistry BRWN 5171A Purdue University 560 Oval Drive West Lafayette, IN 47907-2084 hanna9(a)purdue.edu<mailto:hanna9@purdue.edu> 765-494-5267

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MSE 690 Oct 22 Susana Diaz-Amaya, WebEx, 3:30 PM
by Ku Blanco, Aury Y 22 Oct '21

22 Oct '21

Hi all, Please join us today at 3:30 PM (WebEx Link<https://purdue.webex.com/purdue/j.php?MTID=md69cee28213ddab33cabd21a00adb502> | Password: mse1022). [cid:22b47a12-8b65-4874-8131-3df651b68e7b] Best, Aury Ku she/her/hers Administrative Assistant Materials Engineering Neil Armstrong Hall of Engineering 701 W Stadium Ave, ARMS 2300 West Lafayette, IN 47906 o: 765-494-4100 f: 765-494-1204

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Preliminary Exam Seminar, Nov. 5, Friday at 11:00 am
by Morgan, Yuan-Yu Karen 22 Oct '21

22 Oct '21

Please consider attending this seminar: MATERIALS ENGINEERING SEMINAR "Kinetics of Liquid-Solid Displacement Reactions" By Glenn Peterson Purdue MSE Preliminary Exam Advisors: Professor Michael Sangid and Professor Kenneth Sandhage ABSTRACT Defense, aerospace, and nuclear applications rely heavily on materials able to withstand extreme environments. Of potential solutions, ceramic-metal (cermet) composites can address several fundamental concerns such as temperature, mechanical behavior, and oxidation/corrosion resistance. Forming refractory metal/ultra-high temperature ceramic composites is not intuitive. A novel method of processing these materials is through reactive melt infiltration. In general terms, this is a process where a liquid fills a porous perform, and a displacement reaction occurs. A thermodynamic analysis is presented, and several models for reaction rate are developed for evaluating various controls of solid-liquid displacement reactions. Two common rate limiting steps are chemical reaction or diffusion controlled. Knowledge of reaction constants-necessary data points-must be experimentally determined and can be subsequently used to derive activation energies. These activation energies are one of the tools used to identify the rate limiting step for a given reaction. Fundamentally, determining the reaction rate for a system enables the capability to scale up a process and make usable engineering components. Date: Friday, November 5, 2021 Time: 11:00 AM Join from the meeting link https://purdue.webex.com/meet/sandhage?_ga=2.42913062.268434666.1632831811-…

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MSE 690 Oct 22 Susana Diaz-Amaya, WebEx, 3:30 PM
by Ku Blanco, Aury Y 21 Oct '21

21 Oct '21

Good afternoon all, Please join us tomorrow at 3:30 via WebEx - link below! [cid:image001.jpg@01D7C68D.01C27AD0] WebEx Link<https://purdue.webex.com/purdue/j.php?MTID=md69cee28213ddab33cabd21a00adb502> | Password: mse1022 Best, Aury Ku she/her/hers Administrative Assistant Materials Engineering Neil Armstrong Hall of Engineering 701 W Stadium Ave, ARMS 2300 West Lafayette, IN 47906 o: 765-494-4100 f: 765-494-1204

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REMINDER: Preliminary Exam Seminar of Matthew Binkley, Oct 22, Friday at 12:30 pm
by Morgan, Yuan-Yu Karen 21 Oct '21

21 Oct '21

Please consider attending this seminar: MATERIALS ENGINEERING SEMINAR "The Influence of Pore Characteristics on the Impact of Pores on Mechanical Properties of Castings" By Matthew Binkley Purdue MSE Preliminary Exam Advisor: Professor Matthew Krane and Professor Kevin Trumble ABSTRACT Porosity has been a problem for mechanical properties since castings have become common use in structure components. Historically, research has been focused on the removal of porosity by control of alloying elements, casting conditions, or post-processing. But as castings have become more complex, pores inevitably still make it into the final products due to casting or post-processing limitations. It is well known that porosity is detrimental but there has been little research in the quantification of this impact. Pores exist within a microstructure that will respond differently to their existence based on its experienced process and varies by alloy. This makes it difficult to create a defect measurement parameter without a level of control on microstructure and porosity properties. Focusing expressly on the pores themselves, historically, the bulk % porosity has been used to predict the reduction of mechanical properties. This method has been shown to act better as a guide instead of a measurement of change in mechanical properties as it has been shown to overestimate the effects of porosity on tensile properties and can have multiple orders of magnitude variation for fatigue failure. This variation has shown that the actual forms of the pores themselves matter in their impact. The size and location of individual pores can impact interaction between the pores or surfaces, the shape of the pores can create higher stress concentrations when deviating from spherical, and the distribution of the pores can cause high-porosity zones to have complete failure while a nearby fully dense region will not have any signs of weakness. Despite these broad understandings of porosity, there has been little focus in a systematic understanding of these impacts on the mechanical properties for predictive purposes. Date: Oct 22, 2021 Time: 12:30 PM ARMS 1109 Or WebEx: https://purdue.webex.com/meet/krane Yuan-Yu Karen Morgan,Ph.D. Academic Advisor-Graduate Program School of Materials Engineering Neil Armstrong Hall of Engineering, Room 2217 765-494-4103 ymorgan(a)purdue.edu<mailto:ymorgan@purdue.edu>

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Preliminary Exam Seminar
by Morgan, Yuan-Yu Karen 21 Oct '21

21 Oct '21

Please consider attending this seminar: MATERIALS ENGINEERING SEMINAR "The Impact of Strain on Bismuth-Based Oxides" By James Barnard Purdue MSE Preliminary Exam Advisor: Professor Haiyan Wang ABSTRACT The field of thin film materials with multiferroic properties (simultaneous ferromagnetism and ferroelectricity) has drawn much attention toward nanoelectronic device applications. An appealing new Bismuth oxide system has been discovered in thin film form. This BiFeMnO system, discovered by the study of a nanocomposite of BiFeO3 and BiMnO3, is strongly multiferroic. However, there are multiple phases that grow preferentially under various conditions, including a pseudocubic structure and a layered supercell structure. The growth of the desirable multiferroic layered supercell phase is contingent on a large film strain. The impact of strain on the film has been examined through lattice misfit by substrate and buffer layer selection. Film thickness has also played a role in the film characteristics. In this review, the history of the system and its recent development and tuning will be discussed, as well as the promising future work towards device applications. Date: Nov 5, Friday, 2021 Time: 8:30 AM Room: ARMS 1103 Or WebEx: https://purdue.webex.com/purdue/j.php?MTID=mab828a9cc840b6da6ef72a7363b1ca36

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Final Exam Seminar, Nov. 2, Tuesday, at 12:00 (noon)
by Morgan, Yuan-Yu Karen 21 Oct '21

21 Oct '21

Please consider attending this seminar: MATERIALS ENGINEERING SEMINAR "Data Driven Microstructural Design of Porous Electrodes" By Abhas Deva Purdue MSE Ph.D. Final Exam Advisor: R. Edwin García ABSTRACT Porous lithium ion battery (LIB) electrodes are comprised of electrochemically active material particles that store lithium and a surrounding conductive binder, liquid electrolyte, carbon black mixture that facilitates ionic and electronic transport. Typically, lithium diffusivity is several orders of magnitude smaller in the active material as compared to the surrounding electrolyte, making the electrode microstructure a governing factor in determining the balance between its lithium storage capacity and transport rate. Here, the effects of microstructure on the performance of LIBs are systematically analyzed at three length scales - the single particle length scale, the spatially resolved multiple particle length scale, and the porous electrode layer (homogenized) length scale. At the single particle length scale, a thermodynamically consistent variational framework is presented to examine the effects of crystallographic anisotropy, crystallographic texture, grain size, and grain morphology on the LiNi1/3Mn1/3Co1/3O2 (NMC111) chemistry. The theory was extended to the spatially resolved multiple particle length scale and the porous electrode layer length scale to explain the microstructural origin of experimentally observed instances of apparent phase separation in NMC111. At the electrode length scale, a data driven framework is presented to evaluate the electrochemical performance of a wide range of particle morphologies and battery architectures. Specifically, microstructural characteristics of 53 356 microstructures are assessed, and strategies to optimize electrode design parameters such as active particle morphology, spatial orientation, electrode porosity, and cell thickness are presented. Place: https://purdue.webex.com/purdue/j.php?MTID=md76713504103add582720df99d2bc8cb Time: Tuesday, Nov 2, 2021 12:00 pm | 1 hour | (UTC-04:00) Eastern Time (US & Canada) Meeting number: 2622 861 5362 Password: e2jCJ26N6b4 Yuan-Yu Karen Morgan,Ph.D. Academic Advisor-Graduate Program School of Materials Engineering Neil Armstrong Hall of Engineering, Room 2217 765-494-4103 ymorgan(a)purdue.edu<mailto:ymorgan@purdue.edu>

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