Browsing by Author "Lee, Dongwoo"
Now showing items 1-5 of 5
-
Kinetics of solid-gas reactions characterized by scanning AC nano-calorimetry with application to Zr oxidation
Xiao, Kechao; Lee, Dongwoo; Vlassak, Joost J. (AIP Publishing, 2014)Scanning AC nano-calorimetry is a recently developed experimental technique capable of measuring the heat capacity of thin-film samples of a material over a wide range of temperatures and heating rates. Here, we describe ... -
Low-Temperature Synthesis of Ultra-High-Temperature Coatings of ZrB 2 Using Reactive Multilayers
Lee, Dongwoo; Sim, Gi-Dong; Xiao, Kechao; Vlassak, Joost J. (American Chemical Society (ACS), 2014)We demonstrate a route to synthesize ultra-high-temperature ceramic coatings of ZrB2 at temperatures below 1300 K using Zr/B reactive multilayers. Highly textured crystalline ZrB2 is formed at modest temperatures because ... -
Nanocalorimetry Experiments and First-Principles Theoretical Studies of Solid-State Reactions in Nanolaminates
Lee, Dongwoo (2016-05-04)The extraordinary sensitivity and extremely small thermal mass of chip-based nanocalorimetry sensors allow the study of reactions in thin films over a broad range of heating rates, from isothermal to 10^5 K/s. First-principles ... -
Scanning AC Nanocalorimetry Study of Zr/B Reactive Multilayers
Lee, Dongwoo; Sim, Gi-dong; Xiao, Kechao; Seok Choi, Yong; Vlassak, Joost J. (American Institute of Physics, 2013)The reaction of Zr/B multilayers with a 50 nm modulation period has been studied using scanning AC nanocalorimetry at a heating rate of approximately \(10^3 K/s\). We describe a data reduction algorithm to determine the ... -
Spectral descriptors for bulk metallic glasses based on the thermodynamics of competing crystalline phases
Perim, Eric; Lee, Dongwoo; Liu, Yanhui; Toher, Cormac; Gong, Pan; Li, Yanglin; Simmons, W. Neal; Levy, Ohad; Vlassak, Joost J.; Schroers, Jan; Curtarolo, Stefano (Nature Publishing Group, 2016)Metallic glasses attract considerable interest due to their unique combination of superb properties and processability. Predicting their formation from known alloy parameters remains the major hindrance to the discovery ...