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EB3 2207

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911 Oval Drive
Raleigh, NC 27695
9195153024

February 2020

SEMINAR: Materials Challenges for the Next Generation Thermal Barrier Coatings

February 7 @ 11:00 am - 12:00 pm
EB3 2207, 911 Oval Drive
Raleigh, NC 27695

Abstract: One of the major successes of engineered ceramics has been the development of the thermal protection system for high-temperature gas turbines. For the last twenty-five years, the ceramic material of choice as a thermal barrier coating has, and continues to be, yttria-stabilized zirconia containing 8 weight percent yttria (8YSZ).  As the development of more efficient gas turbines proceeds there is a need for an oxide coating that can sustain higher operating temperatures than 8YSZ. However, no existing oxide has…

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SEMINAR: Minimizing the Impact of Uncertainties on Complex Systems Operation Using Stochastic Distribution Controls Theory

February 14 @ 11:00 am - 12:00 pm
EB3 2207, 911 Oval Drive
Raleigh, NC 27695

Abstract: Planning for inevitable uncertainties that have the potential to negatively impact the nation’s transportation infrastructure, power grid, and manufacturing base is a major challenge. Uncertainties are, by definition, unpredictable. Therefore, it’s critical to deploy effective controls and optimizations to ensure adverse impacts caused by uncertainties are eliminated or minimized, or even utilized such as cases in power grid operation. Dr. Wang will describe how stochastic controls and probability theory can be utilized to effectively address this challenge. In addition,…

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SEMINAR: Biomechanics of Atherosclerotic Plaque Rupture

February 28 @ 11:00 am - 12:00 pm
EB3 2207, 911 Oval Drive
Raleigh, NC 27695

Abstract: Fibrous cap rupture and the ensuing thrombus formation accounts for more than 50% of all cardiovascular deaths in the United States. While coronary calcification is clinically related to poor prognosis and used as a marker for the advancement of the disease it has not been successfully correlated with cap rupture. In a series of studies, we investigated the role of microcalcifications (μCalcs) in the vulnerability of plaque rupture.  In Vengrenyuk et al., (2006) it was first proposed that cap…

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May 2020

SEMINAR: Engineered Nanostructured Materials for Advanced Thermal Transport

May 1 @ 11:00 am - 12:00 pm
EB3 2207, 911 Oval Drive
Raleigh, NC 27695

Abstract: In this talk, I will give three examples about utilizing specially engineered nanostructured materials to develop advanced thermal components. First, I will demonstrate a "super-solder" consisting of a heterogeneous copper-tin nanowire array that has polymer-like compliance with a shear modulus 2-3 orders of magnitude lower than traditional solders and can reduce thermal resistance by two times as compared with the state-of-the-art thermal interface materials. The super-solder also exhibits exceptional long-term reliability with >1,280 thermal cycles over a wide temperature…

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