Joseph Eun Email & Phone Number

Boston, Ma, Us

Boston, Ma, Us

Northborough, Massachusetts, United States

Northborough, Massachusetts, United States

Atlanta, Ga

Responsibilities include determining fabrication parameters for creating fully dense undoped and Yb-doped Lutetium Oxide (Lu2O3) optical ceramics for use as a gain media in solid-state laser systems. Goals are (1) to create a process using commercially available materials and commercially viable ceramic manufacturing methods and (2) to extend the process to creating theoretically transmissive doped Lutetium Oxide optical ceramicsProcesses used in sample fabrication include:- Ball… Show more Responsibilities include determining fabrication parameters for creating fully dense undoped and Yb-doped Lutetium Oxide (Lu2O3) optical ceramics for use as a gain media in solid-state laser systems. Goals are (1) to create a process using commercially available materials and commercially viable ceramic manufacturing methods and (2) to extend the process to creating theoretically transmissive doped Lutetium Oxide optical ceramicsProcesses used in sample fabrication include:- Ball milling of ceramic powder(s) with organics (binders, plasticizers)- Spray drying ceramic powders- Cold and Warm Isostatic Pressing (CIP/WIP)- Vacuum sintering and Hot Isostatic Pressing (HIP)- Grinding and polishing samplesCharacterization methods used include:- Density measurements (gravimetric, buoyancy method)- X-Ray Diffraction (XRD) of powders and sintered samples- Optical and Scanning Electron Microscopy (SEM) of fracture surfaces- Grain size measurements of thermally-etched samples- Weight-loss, rate-controlled, thermal gravimetric analysis (TGA) for optimal organic burnout schedules- ToF-SIMS for chemical analysis of samples- Transmittance and Photoluminescence measurements of transparent, undoped and doped samples. Show less

Atlanta, Ga

Responsibilities were to (1) convert 3D surface and 3D scans into solid bodies for future manipulation in CAD, (2) prototype fixture/ejection plates in wood, brass, and aluminum, and (3) prototype procedures for wrapping ceramic tiles utilizing G-code.

New York, Ny

Responsibilities were to help maintain the cleanroom and inventory of chemicals, garments, and tools used for the cleanroom and various shared laboratory spaces.

New York, Ny

Responsibilities were to translate the MATLAB programs and code for automation and use of measurement devices (e.g., Agilent 4155c Semiconductor Parameter Analyzer and Cascade probe system) and the auto-probe into Python using the PyVISA Python package with Matan Markind (SEAS '15 Mechanical Engineering).

New York, Ny

Responsibilities were to study the effects of laser crystallization of Zinc Oxide thin films using the Excimer laser system, to characterize the samples using Optical Microscopy, Scanning Electron Microscopy, and Atomic Force Microscopy.

Denver, Co

Responsibilities were to teach students concepts and material covered on the mathematics portion of the College Board’s SAT exam, concepts and material covered in College Board’s AP Calculus BC course, high-school level Algebra 2, Honors Chemistry, and Physics.

Columbia University In The City Of New York

Responsibilities were to provide Information Services at the University Development & Alumni Relations Office, to work with Athena (Advance) databases purging, verifying, and updating alumni information, and to research alumni to ensure information is as up-to-date as possible.

Doctor Of Philosophy (Ph.D.), Materials Science And Engineering, 3.90

Recipient of the Jewell Family Fellowship Endowment for the Fall 2018 semester

Bachelor Of Science (B.S.), Materials Science And Engineering, 3.7955

Activities and Societies: New York Alpha Chapter of Tau Beta Pi Engineering Honor Society, Liberty in North Korea (LiNK), The Fu.

Bachelor Of Science (B.S.), Petroleum Engineering, 4.00

Colorado School of Mines Dean's Honor Roll: Fall 2011 and Spring 2012 ***Transferred to Columbia University's School of Engineering.

High School, 3.80

Activities and Societies: Speech and Debate, Technology Student Association