Conference Session

Teaching Methods for the 21st Century: Part 1

Collection

2007 Annual Conference & Exposition

Authors

Ilan Grave, Elizabethtown College; Nat Hager III, Elizabethtown College

Tagged Divisions

Materials

materials including High-PerformanceConcrete1 and Fiber-Reinforced Concrete.2The material is embedded with an inexpensive capacitance sensor and interrogated by broadbandTime-Domain-Reflectometry (TDR), providing a molecular rotation spectrum of water over anextremely wide frequency range (10 kHz - 8GHz.)Three separate states of water participating in the hydration reaction are identified, including afree-water rotational state, a bound-water rotational state, and an ion-hopping state. The threestates have been fit to appropriate models as a function of cure time, while a variation in cementchemistry revealed the nature of the processes involved.The results are: 1) a free-water relaxation which monitors the disappearance of water intohydration and

Conference Session

Teaching Methods for the 21st Century: Part 1

Collection

2007 Annual Conference & Exposition

Authors

Katherine Chen, California Polytechnic State University

Tagged Divisions

Materials

curator. a) b) Page 12.704.2Figure 1. a) The SciTechatorium at the Bellvue Santa-Fe K-6 Charter school in Avila,CA houses b) numerous demos and items that promote scientific inquiry for all ages.The SciTechatorium is open for a few hours per week (depending on docent volunteers),and is available to the K-6 students during recess and lunch. The children can come inand spend as much (or little) time as they wish to take out the reptiles, use the computers,look at displays, talk to Chick and the docents, and play with any of the numerousinteractive items at the museum. The museum is an amazingly fun and inviting

Conference Session

Teaching Methods for the 21st Century: Part 1

Collection

2007 Annual Conference & Exposition

Authors

Richard Savage, California Polytechnic State University; Linda Vanasupa, California Polytechnic State University; Jonathan Stolk, Franklin W. Olin College of Engineering

Tagged Divisions

Materials

Page 12.367.3resources for learning, choosing and implementing appropriate learning strategies, andevaluating learning outcomes.” Knowles points out that there is convincing evidence that peoplewho take the initiative in learning (proactive learners) learn and retain more than do people whosit at the feet of teachers passively waiting to be taught (reactive learners). They enter intolearning more purposefully and with greater motivation. Knowles’ popularized a four-stepprocess for SDL: 1. Diagnose & formulate learning needs 2. Identify resources for learning 3. Choose and implement learning strategies 4. Evaluate learning outcomesWe have attempted to integrate this process throughout our project activities. This

Conference Session

Teaching Methods for the 21st Century: Part 1

Collection

2007 Annual Conference & Exposition

Authors

Cindy Waters, North Carolina A&T State University

Tagged Divisions

Materials

” 1. Joseph Lowman in Mastering the Techniques of Teaching, statesthat “college classrooms are fundamentally dramatic arenas in which the teacher is the focalpoint, like the actor or orator on stage” 2. What better way to break the monotony of informationtransfer than a good story. Papadimitriou has recognized three main ways of using storytelling inthe teaching of a technical subject: (a) providing historical/biographical context to a subject, (b)illustrating a concept by a story, and (c) embedding educational material into a story 3. Thispaper provides examples of storytelling in a Materials Science class and student reactions to theclass. The paper is intended to serve as the starting point of an audience discussion during thepresentation

Conference Session

Hands-on Materials Science and Engineering

Collection

2007 Annual Conference & Exposition

Authors

Richard Griffin, Texas A&M University; Ibrahim Karaman, Texas A&M University; Ji Ma, Texas A&M University; Jeffrey Froyd, Texas A&M University; Jaime Grunlan, Texas A&M University

Tagged Divisions

Materials

project, but separate from the certificate program, we are developing aseries of experiments that will be introduced in the first-year engineering program at a large,research-intensive university. The goal of the experiments is to help students determine howdifferences in concentrations of nano-sized particles, which are added to common materials, canchange physical properties. In this exercise, student teams will fabricate composite films filledwith different concentrations of carbon black in two different types of polymers: 1. latex-basedcomposite with poly (vinyl acetate), and 2. solution-based composite with poly(vinylpyrrolidone). The concentrations vary from about 2 wt% to 15 wt%. For mechanicalproperties, the students will determine the

Conference Session

Creating 'Materials' Awareness

Collection

2007 Annual Conference & Exposition

Authors

John Bridge, Maine Maritime Academy; Barbara Fleck, Maine Maritime Academy

Tagged Divisions

Materials

Conference Session

Introductory Materials Science for the 21st Century

Collection

2007 Annual Conference & Exposition

Authors

Carolyn Skurla, Baylor University

Tagged Divisions

Materials

additional self-pacedmanufacturing exercises during the first half of the semester.This report describes the steps that were taken to maintain the quality of the hands-onexperiences of a greater number of students in a laboratory course with limited laboratory space,a description of the modifications and innovations that were attempted, and a review of whichmodifications were successful and which require future modification or replacement.IntroductionIn the second semester of their junior year, our mechanical engineering students take EGR3322 –Mechanical Engineering Materials and Manufacturing Processes (hereafter referred to asMaterials), a 3-credit course (i.e., 2 credits lecture / 1 credit laboratory) that is their first upper-division, hands-on

Conference Session

Introductory Materials Science for the 21st Century

Collection

2007 Annual Conference & Exposition

Authors

Sarah Leach, Purdue University

Tagged Divisions

Materials

Conference Session

Hands-on Materials Science and Engineering

Collection

2007 Annual Conference & Exposition

Authors

Gangbing Song, University of Houston; Richard Bannerot, University of Houston

Tagged Divisions

Materials

Interactive Shape Memory Alloy Demonstration for Smart Materials CurriculaAbstractThis paper presents the development, operation, and evaluation of an interactive Shape MemoryAlloy (SMA) demonstration. The hands-on device was developed to introduce Shape MemoryAlloys to anyone but especially to students in middle school and above. The device is designedto demonstrate the basic operations of an SMA and its common applications. The devicefeatures two independent processes with their own associated control buttons and dials, housedin a clear acrylic display case for easy visualization. The display features 1) an SMA wireweight-lifter to demonstrate the magnitude of the force exerted by the SMA wire and 2) anSMA wire actuated flexible

Conference Session

Curriculum Implementation of Materials Advances

Collection

2007 Annual Conference & Exposition

Authors

Yaomin Dong, Kettering University; Jacqueline El-Sayed, Kettering University

Tagged Divisions

Materials

software suite.1. IntroductionComposite materials are widely used in diverse applications due to their advantages in highstrength to weight ratios, high corrosion resistance, high fatigue life in cyclic loading, and greatpotential in styling design. From aircrafts, spacecrafts, submarines, and surface ships to civilstructures, automobiles, and sporting goods, advanced composite materials consisting of highstrength fibers embedded in matrix materials are gaining increasing popularity. The PlasticProduct Design Specialty (PPDS) is one of the six Mechanical Engineering’s specialties atKettering University. As a specialty, PPDS does not offer a course on composite materials inKettering University today. Our students often ask for help in the field of

Conference Session

Curriculum Implementation of Materials Advances

Collection

2007 Annual Conference & Exposition

Authors

Robert Simoneau, Keene State University

Tagged Divisions

Materials

positive aspects and limitations of this standard.Finally we will review some of the existing and emerging resources that can help facultymembers either locate or create curriculum materials that are pertinent to ISO 14000.IntroductionThe ISO 14000 standard was created to influence corporate policy with the ultimate goal ofpromoting environmental stewardship. Essentially ISO 14000 encourages the development ofenvironmental management systems (EMS) with the central aim of pollution prevention.1 Manystakeholders within a corporation are involved with ISO 14000 certification and performanceassessment. As our collective consciousness is raised regarding ecological issues it is becomingapparent that many of these problems will require engineering and

Conference Session

Creating 'Materials' Awareness

Collection

2007 Annual Conference & Exposition

Authors

Craig Johnson, Central Washington University; Beth Rogers, Yakima Valley Community College; OraLynn Manweller, Smiths Aerospace Corporation

Tagged Divisions

Materials

temperaturevs. inverse time before starting to cast. After making soap the student data was plotted, resultswere discussed and soap was compared.In consultation with the Central Washington University Human Subjects Review Committee,assessment questions were delivered to the group verbally, and responses were privately recordedby the instructors. Students unanimously indicated that the relationship (T vs. 1/t) ought to be a‘curve’. Results showed the linear relationship. Post-activity assessment showed a completereversal from the student’s earlier prediction to support the linear relationship. Studentcomments indicated support for this activity as having an ‘engineering’ component as opposed toother just ‘fun’ camp activities.IntroductionThis effort is

Conference Session

Creating 'Materials' Awareness

Collection

2007 Annual Conference & Exposition

Authors

Lawrence Genalo, Iowa State University; Scott Chumbley, Iowa State University

Tagged Divisions

Materials

the help of thisremote hook-up to the WebSEM. The excellent core of highly involved undergraduatestudents who have been recruited now form an integral part of the outreach andrecruitment efforts. The student Materials Advantage organization has been namedoutstanding chapter in the country the past three years.NeedThe need for more engineers in the United States, including materials engineers, has beenwell documented in recent years. “Rising Above The Gathering Storm: Energizing andEmploying America for a Brighter Economic Future,”1 a publication from the NationalAcademies, states that “Last year more than 600,000 engineers graduated frominstitutions of higher education in China. In India, the figure was 350,000. In America, itwas about 70,000

Conference Session

Teaching Methods for the 21st Century: Part 2

Collection

2007 Annual Conference & Exposition

Authors

Richard Savage, California Polytechnic State University

Tagged Divisions

Materials

method but often they arenot exposed to design methods until their capstone senior project. We have developed aseven-step method that guides students through projects and enables them to achieve theskills we have identified as essential to their success as global engineers. The stepsinclude 1) identifying user’s needs, 2) developing product concepts, 3) translatingperformance requirements from the language of the customer into technical functionalrequirements, 4) brainstorming several conceptual designs and choosing the optimumsolution, 5) developing a detailed design solution, 6) fabricating a prototype and testingto ensure that it meets the performance requirements and 7) determining the commercialfeasibility of the design solution. An example

Conference Session

Hands-on Materials Science and Engineering

Collection

2007 Annual Conference & Exposition

Authors

Otto Wilson, Catholic University of America

Tagged Divisions

Materials

processes. Hetero-coagulation is a termthat describes particle/particle adsorption interactions involving two or more types of particles1, 2.These interactions are typically driven by electrostatic (opposite charges attract), chemicalaffinity effects, or size effects. In size based hetero-coagulation, nanoparticles seek to lowertheir surface energy by adsorbing onto larger particles. In this demonstration, magneticnanoparticles are mixed with hydroxyapatite particles in suspension to allow visual observationof nanoscale heterocoagulation and adsorption interactions with the use of a strong magnet.ProcedureSynthesis of magnetic nanoparticlesA solution containing a 1:2 molar ratio of Fe2+ to Fe3+ (typically 0.5 M FeCl3 and 0.25 M FeCl2,50-100 ml) in

Conference Session

Teaching Methods for the 21st Century: Part 2

Collection

2007 Annual Conference & Exposition

Authors

Anastasia Micheals, San Jose State University; Emily Allen, San Jose State University; Jeanne Linsdell, San Jose State University

Tagged Divisions

Materials

and thecomplexity of the report format. Each assignment presents a short narrative, describing anengineering job and assignment, and presents some guidelines as to what content is appropriate.In the rest of the assignment, the audience is identified, and guidelines for length are given. Thestudent’s task is to extract relevant information from the experiment and effectivelycommunicate that information in writing.A short description of the laboratory experiment subject, the specific narratives and tasks for thewriting assignment are described below. For an example of a complete narrative, see Figure 1. ‚ Assignment 1. Metal Resistivity - Short Engineering Report o Your company fabricates copper wire. Elemental analysis of a metal

Conference Session

Introductory Materials Science for the 21st Century

Collection

2007 Annual Conference & Exposition

Authors

Dhananjay Kumar, North Carolina A&T State University; Devdas Pai, North Carolina A&T State University; Cindy Waters, North Carolina A&T State University; Jagannathan Sankar, North Carolina A&T State University

Tagged Divisions

Materials

supplementary learning methods including pre-quizzes, multidisciplinary learning throughextramural speakers and off-campus lab visits, and service learning.1. IntroductionTeaching is an unnatural act, an incursion on another person's learning-in-progress. In particular,demonstrating the gee-whiz applications for new materials in trendy commercial products thatare smaller or faster or just plain better-designed is the glamorous side of teaching materialsscience. The challenge lies in delivering along with the applications the underlying science andmath principles needed to understand materials topics that strike terror at first glance in manynovices’ hearts, such as crystal structure and phase diagrams. Therefore, it is necessary for thestudy material

Conference Session

Teaching Methods for the 21st Century: Part 2

Collection

2007 Annual Conference & Exposition

Authors

Mary Vollaro, Western New England College

Tagged Divisions

Materials

for the course; memory stickThe participants in this course were part-time Masters’ Degree students, who are young,working professionals looking to improve their engineering skills to better compete in theworkplace. Students have backgrounds in mechanical or industrial engineering and work asengineers in the areas of production support, test and project management. Only 1-3 years pastgraduation with their Bachelors’ degree and significant entry level experience at their companies,these students are eager learners. For most students, a Master’s Degree will be their highest levelof technical education attained. It is noted here that upper level undergraduates, who havecompleted courses in design, materials, manufacturing processes and

Conference Session

Curriculum Implementation of Materials Advances

Collection

2007 Annual Conference & Exposition

Authors

Ajit Kelkar, North Carolina A&T State University; Ronnie Bolick, North Carolina A&T State University; Ram Mohan, North Carolina A&T State University; Oladapo Akinyede, North Carolina A&T State University

Tagged Divisions

Materials

measure the viscosity. The viscosity of theoriginal mixture is approximately 40 centi-poise. After reduction, the viscosity is approximately500 centi-poise. The solution is then poured into a syringe and a tube is attached to the bluntneedle of the syringe. Another needle tip is placed on the end of the tubing. In step two, the syringe is placed into a syringe pump. An alligator clip from the positivevoltage of a high voltage power supply is attached to the needle tip. The negative or ground ofthe power is attached to a plate that fabric is clamped on. Figure 1 illustrates an XYZ table, theelectrified needle tip and the S2 fiberglass fabric on the mounting plate. Equipment such as theHigh Voltage power supply, the syringe pump which is

Conference Session

Creating 'Materials' Awareness

Collection

2007 Annual Conference & Exposition

Authors

Gukan Rajaram, North Carolina A&T State University; Devdas Pai, North Carolina A&T State University; Jagannathan Sankar, North Carolina A&T State University

Tagged Divisions

Materials

lasting two weeks. It is wellknown that laboratories and demonstrations add information and interest to science andengineering courses 1. Laboratory exercises provide a great opportunity to expose students to‘real materials’ in an active learning environment. Such exercises also provide a mean to satisfyimportant learning objectives and the ability to conduct experiments, analyze and interpret data 2.Our program centers on a series of interactive lectures in a lab setting, with relevant experimentsimmediately following. There are extensive pre-experiment discussions and comparison withactual results in post-experiment discussions. These are supplemented by lab tours of graduateand faculty research labs and interactions with those researchers, who

Conference Session

Curriculum Implementation of Materials Advances

Collection

2007 Annual Conference & Exposition

Authors

Santosh Kurinec, Rochester Institute of Technology; Surendra Gupta, Rochester Institute of Technology

Tagged Divisions

Materials

, polymeric and biomaterials with silicon electronics. The conventional top downmethodology for miniaturization has advanced to nanoscales, while bottom up and selfassembling methodologies at molecular and atomistic scales are evolving.The integrated circuit technology began with using essentially a few materials – doped silicon,silicon dioxide and aluminum in 1960s. Subsequently more and more materials have beenintegrated following extensive materials research. Figure 1 shows that today’s semiconductor Page 12.1037.2technology spans a much larger part of the periodic table. The elements manifest theirintegration through syntheses of materials with

Conference Session

Introductory Materials Science for the 21st Century

Collection

2007 Annual Conference & Exposition

Authors

Kathleen Kitto, Western Washington University

Tagged Divisions

Materials

complete the many tasks neededfor such a comprehensive transformation. First, recent research studies have shown that studentsdo understand more about what they are studying if the course environment includes active andconceptual learning opportunities 1-13. For example, the National Research Council (NRC)completed an in-depth study and reported on successful learning strategies 1. This report and thework of others1-13 show that it is important to build upon the “conceptual and cultural knowledgethat students bring with them to the classroom”.1 Second, students often view IntroductoryMaterials Engineering courses as difficult, abstract and less than exciting. It is usually the firstcourse in which they must integrate what they have learned in

Conference Session

Hands-on Materials Science and Engineering

Collection

2007 Annual Conference & Exposition

Authors

John Marshall, University of Southern Maine

Tagged Divisions

Materials

fluid to solidalmost instantaneously, the rheology of the material reverting to its original state uponremoval of the field.“Response, which takes only milliseconds, is in the form of a progressive gelling thatis proportional to field strength. With no field present, the fluid flows as freely ashydraulic oil”.1 As a result, MR technology provides fast and infinitely variablecontrol of energy dissipation of industrial and automotive devices.2 This change ofstate has the potential to revolutionize the control aspects of vibration and theresponsiveness of hydraulic power transmission systems. “The application ofmagneto-rheological fluids for damping is a unique and novel approach to an age-oldproblem”. 3

Conference Session

Teaching Methods for the 21st Century: Part 2

Collection

2007 Annual Conference & Exposition

Authors

Stephen Krause, Arizona State University; Amaneh Tasooji, Arizona State University

Tagged Divisions

Materials

supersaturated.(Increasing concentrations are illustrated by the increasing density of the dots in the diagrams.The dots represent the dissolved sugar molecules. The undissolved sugar in beaker B is shown asa darkened area at the bottom of the beaker.) (Correct answers are in bold)In the questions below, please circle the correct answer and then give an explanation.I.1. Solution A is (saturated, unsaturated, supersaturated). PLEASE EXPLAIN!I.2. Solution B is (saturated, unsaturated, supersaturated).PLEASE EXPLAIN!I.3. Solution C is (saturated, unsaturated, supersaturated).PLEASE EXPLAIN! Page 12.540.6The second question shown below is from the MCI and