Chansoon Kang, Ph.D., Materials Science And Engineering Email & Phone Number

Philadelphia, Pa, Us

Iselin, New Jersey, United States

🥼 𝐌𝐚𝐭𝐞𝐫𝐢𝐚𝐥𝐬 𝐂𝐡𝐚𝐫𝐚𝐜𝐭𝐞𝐫𝐢𝐳𝐚𝐭𝐢𝐨𝐧 𝐚𝐧𝐝 𝐄𝐥𝐞𝐜𝐭𝐫𝐨𝐧 𝐌𝐢𝐜𝐫𝐨𝐬𝐜𝐨𝐩𝐲I brought my deep electron microscopy experience in Focused Ion Beam (FIB) technology to lead initiatives introducing and integrating FIB applications within BASF North America.My responsibilities include SEM and TEM analyses, electron microscopy instrument maintenance, lab operations management, and budget oversight for cathodoluminescence spectroscopy projects.💡 𝐏𝐢𝐨𝐧𝐞𝐞𝐫𝐢𝐧𝐠 𝐒𝐄𝐌 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 𝐚𝐧𝐝 𝐀𝐈-𝐁𝐚𝐬𝐞𝐝 𝐈𝐦𝐚𝐠𝐞 𝐀𝐧𝐚𝐥𝐲𝐬𝐢𝐬In electron microscopy, accurately representing global material data is challenging due to small observation areas.When a field-returned product showed significant surface morphology changes, we needed to prove these were isolated cases. I leveraged an SEM automation technique using AI-based image analysis that enhanced BASF products' reliability and aided customer decisions. This technique now comprises 30% of our SEM requests and is growing.🧪 𝐈𝐧𝐭𝐫𝐨𝐝𝐮𝐜𝐢𝐧𝐠 𝐅𝐈𝐁 𝐀𝐩𝐩𝐥𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬 𝐭𝐨 𝐂𝐚𝐭𝐚𝐥𝐲𝐬𝐭𝐬I introduced FIB applications to the catalyst field, developing new methods like single-particle lift-off, large-area TEM sample preparation, and TOF-SIMS one-pot process analysis for Li-ion battery electrodes.In one urgent case, a customer sample with a low-loading level catalyst core required precise analysis. Conventional TEM methods fell short, but FIB enabled targeted, efficient sample preparation and analysis within a day. 🔬 𝐋𝐞𝐚𝐝𝐢𝐧𝐠 𝐂𝐚𝐭𝐡𝐨𝐝𝐨𝐥𝐮𝐦𝐢𝐧𝐞𝐬𝐜𝐞𝐧𝐜𝐞 𝐒𝐩𝐞𝐜𝐭𝐫𝐨𝐬𝐜𝐨𝐩𝐲 𝐏𝐫𝐨𝐣𝐞𝐜𝐭Traditionally, EDS and WDS offer elemental insights but lack in-depth chemical analysis for catalysts.I initiated a cathodoluminescence spectroscopy project, leading a regional product team to explore this rarely-used technique. My leadership revealed new insights into material aging, performance degradation, and QC.

Plymouth, Michigan, United States

🔬 𝐀𝐝𝐯𝐚𝐧𝐜𝐞𝐝 𝐌𝐚𝐭𝐞𝐫𝐢𝐚𝐥𝐬 𝐂𝐡𝐚𝐫𝐚𝐜𝐭𝐞𝐫𝐢𝐳𝐚𝐭𝐢𝐨𝐧 𝐚𝐧𝐝 𝐈𝐧𝐧𝐨𝐯𝐚𝐭𝐢𝐨𝐧This engineering recruitment firm contracted me to support General Motors in performing comprehensive materials characterization, primarily using electron microscopy and FIB, as well as XRD, TGA, DSC, and Raman spectroscopy.I aimed to develop new methodologies of sulfuric solid-state electrolytes with enhanced ionic conductivity, thermal, and mechanical stability, paving the way for more efficient and stable solid-state batteries.This effort involved synthesizing solid-state electrolytes, fabricating and testing solid-state batteries, conducting microstructure and thermal analysis, and compiling technical reports and manuscripts for publication in SCI journals and patent filings.⚡ 𝐈𝐧𝐧𝐨𝐯𝐚𝐭𝐢𝐯𝐞 𝐔𝐬𝐞 𝐨𝐟 𝐏𝐥𝐚𝐬𝐦𝐚 𝐅𝐈𝐁Conventional wisdom suggests that higher energy ion beams cause more damage to samples, especially sulfuric solid-state electrolytes with low melting temperatures.When using Ar-ion and Ga-ion beams, I found that the prolonged exposure caused significant thermal damage, making it difficult to observe the internal microstructure. However, I realized that a high-energy beam applied for a very short duration could minimize this damage.I researched the available tools and discovered that Plasma FIB, installed at the University of Michigan facility, could provide a solution. Using high-energy Plasma FIB, I cut the materials quickly and observed a clean surface without beam damage. This method eliminated the need for expensive and complicated cryo systems, which could expose samples to air and cause additional damage.

Portland, Oregon Area

🔬 𝐒𝐡𝐚𝐫𝐢𝐧𝐠 𝐄𝐥𝐞𝐜𝐭𝐫𝐨𝐧 𝐌𝐢𝐜𝐫𝐨𝐬𝐜𝐨𝐩𝐲 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞In March 2019, I moved to the US to search for new opportunities. During this time, I volunteered as a research scholar in a professor's research group at Portland State University.This experience enabled me to stay engaged in the academic community. I attended meetings with students and external collaborators, advising and consulting on electron microscopy techniques, including SEM, FIB, and EBSD. 💡 𝐌𝐞𝐧𝐭𝐨𝐫𝐢𝐧𝐠 𝐚𝐧𝐝 𝐆𝐮𝐢𝐝𝐢𝐧𝐠 𝐅𝐮𝐭𝐮𝐫𝐞 𝐒𝐜𝐢𝐞𝐧𝐭𝐢𝐬𝐭𝐬One of my key contributions was mentoring students and helping them build their confidence and understanding in applying advanced electron microscopy methodologies and analytical tools in their research.

Seoul, South Korea

🔋 𝐄𝐧𝐡𝐚𝐧𝐜𝐢𝐧𝐠 𝐋𝐢-𝐢𝐨𝐧 𝐁𝐚𝐭𝐭𝐞𝐫𝐲 𝐏𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞While pursuing my Ph.D. in Materials Science and Engineering, I dedicated 6 years to improving the performance of Li-ion batteries, focusing on the failure analysis of silicon alloy and silicon oxide/graphite blended electrodes.Working in a postdoc capacity, I built upon this work in silicon anode materials and electron microscopy (SEM/FIB/TEM) to support the final phase of a 10-year project to discover and develop new silicon alloys for anode materials.🔄 𝐈𝐧𝐧𝐨𝐯𝐚𝐭𝐢𝐧𝐠 𝐅𝐚𝐢𝐥𝐮𝐫𝐞 𝐀𝐧𝐚𝐥𝐲𝐬𝐢𝐬 𝐌𝐞𝐭𝐡𝐨𝐝𝐬When I joined the team, our goal was to develop anode materials. Our team reached this goal ahead of schedule.We set a new objective for the project's final phase, which focused on supporting small businesses in the failure analysis of anode electrodes. Existing methods were costly and inaccessible to these businesses, so I sought a more efficient solution.While conducting failure analysis, I observed an intriguing phenomenon: some graphite particles appeared brighter than others under SEM observation. I designed a new experiment to isolate the factors affecting brightness, discovering that local resistance due to physical disconnection from the electron path was the key variation. I validated my hypothesis using voltage contrast imaging, a technique from semiconductor fault isolation.My approach led to a breakthrough: an easier, cheaper, and faster method for failure analysis that could be performed on-site without external analytic services. Our findings were published in an SCI journal.One company even purchased sample preparation tools and a table SEM to implement this method. I visited their site to train them on sample preparation and failure analysis techniques, enabling them to conduct these analyses independently.

Seoul, South Korea

🔋 𝐒𝐢𝐥𝐢𝐜𝐨𝐧 𝐀𝐥𝐥𝐨𝐲 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐟𝐨𝐫 𝐋𝐢-𝐢𝐨𝐧 𝐁𝐚𝐭𝐭𝐞𝐫𝐢𝐞𝐬I participated in government and privately funded projects to develop silicon alloy as an anode material for Li-ion batteries and managed the FIB-SEM lab, overseeing one FIB-SEM and one SEM.I also spent 2 years as a Visiting Research Fellow at Brown University, enriching my knowledge of material behavior.🌟 𝐀𝐢𝐫-𝐋𝐨𝐜𝐤 𝐒𝐚𝐦𝐩𝐥𝐞 𝐓𝐫𝐚𝐧𝐬𝐟𝐞𝐫 𝐒𝐲𝐬𝐭𝐞𝐦 𝐈𝐧𝐧𝐨𝐯𝐚𝐭𝐢𝐨𝐧A mid-sized company faced challenges with its silicon alloy's market performance and development direction.Using the air-lock sample transfer system developed by my group a few years ago, I observed the microstructure evolution during battery cycling, identified root causes, and developed a new alloy design. This design improved the initial capacity and retention rate by 10%, leading to publication in an SCI journal and the design's patent in South Korea and the US.🥼 𝐑𝐞𝐝𝐮𝐜𝐢𝐧𝐠 𝐕𝐨𝐥𝐮𝐦𝐞 𝐄𝐱𝐩𝐚𝐧𝐬𝐢𝐨𝐧 𝐢𝐧 𝐒𝐢𝐥𝐢𝐜𝐨𝐧 𝐀𝐧𝐨𝐝𝐞𝐬Silicon anodes can expand up to 300% in volume. My team and I devised a novel FIB method to measure thickness changes during battery cycling and volume expansion behavior.We found that electrode thickness nearly doubled, indicating other contributing factors. We successfully reduced thickness changes to less than 30% by designing an electrode with additional frame materials.🔬 𝐔𝐫𝐠𝐞𝐧𝐭 𝐒𝐚𝐦𝐩𝐥𝐞 𝐏𝐫𝐞𝐩𝐚𝐫𝐚𝐭𝐢𝐨𝐧 𝐚𝐧𝐝 𝐑𝐞𝐬𝐞𝐚𝐫𝐜𝐡 𝐒𝐮𝐜𝐜𝐞𝐬𝐬A collaborator, under pressure with a looming deadline, struggled with sample preparation.After 2 years and multiple failed attempts with other facilities, he turned to me. Drawing on my FIB experience, I prepared 14 samples in 2 days, enabling successful in-situ experiments.My timely support led to the submission and acceptance of a manuscript to a peer-reviewed journal and my collaborator's on-time graduation.

Doctor Of Philosophy - Phd, Materials Science And Engineering

Visiting Research Fellow, Materials Science And Engineering, Mechanical Engineering

Bachelor'S Degree, Materials Science And Engineering, ....