1. 22050 Pinebrook Drive, New Caney, TX · USA
E-MAIL sckeen1988@gmail.com · PHONE 713.858.6458
Stephen Keen
Interests
Chemical synthesis, Fluid dynamics, Thin film deposition, Interfacial dynamics,
Nanomechanical characterization
Education
2013 B.S., Texas A&M University, College Station, TX, USA.
Department of Geosciences
Skills
Analysis Tribologicalfailure analysis, AFM, SEM, Nanoindentation, Nanoscratch,
ExperimentalTribological testing, Nanomechanical Characterization, Electrodeslurry creation,
Computer Matlab, Solidworks,Microsoft Office
WorkExperience
March 2015 – Present
Research Assistant: Texas A&M University Mechanical Engineering
I reported to Andreas Polycarpou,providing specific duties pertaining to research
activities including the evaluation, selection, and application of standard techniques of
routine research. My responsibilities included building a Li-Ion battery station and a
chemical vapor deposition chamber as wellas managing research withfour
tribometers, an atomic forcemicroscopeand a nanoindenter. A general project
overview is listed below.
January 2012- March 2015
Sales Specialist
Generate new customers by building positive relationships, analyzing all competitions
and providing superior solutions. I managed multiple installation projects at any given
time including project planning, design, and execution. I assisted customers in
visualizing and achieving their goals using all available products and services to insure
each customer’s needs were met while consistently exceeding all sales goals forthe
department. I was also responsible formaintaining accurate inventory counts logical
merchandising.
Affiliations
January 2012 – January 2014

2. American Association of Petroleum Geologists
Research Experience
March – May 2015
ATSP Innovations
Characterization of the tribological properties of Aromatic Thermosetting Polyester
(ATSP) films on different substrates as well as with different compositions, in general
varying percentage of PTFE in the film. A high pressure tribometer with a pin on disk
apparatus is used to test varying conditions, then a profile obtained and SEM analysis
done todetermine cause and type of failure.
March 2015 – Present
Lithium Ion Battery
Set up a mass flow controller and chemical vapor deposition chamber. Testing of
different material combinations for optimal cycleefficiency and performance. Further
development of novel Si based battery electrodes to further increase cycleefficiency.
May 2015
Seagate
Extremely shallow indentation on hard disks to create a detailed depth versus
Hardness/Elastic Modulus plot for depths starting below 10nm. This outlined
mechanical properties of the many layers in a hard disk surface, and gives valuable
information to hard disk failure mechanism
May 2015 - Present
Nanomechanical Properties of PVA and Graphene Oxide Films
Nanomechanical characterization of a 140nm – 200nm thick layer by layer assembly
thin film,determining the effectsof Graphene Oxide reduction and cross linking of PVA
on the hardness, elastic modulus, elastic recovery and friction of the materials.
Substrate effectsare also probed for to determine true filmproperties.
July 2015 – Present
Solar Glass Mechanical Properties
Experimental methods of nanoindentation and nanoscratch are used to test sand
damage on solar protectant glass, and the effect of this damage on light transmittance
and overall efficiency. An FEM model is developed from experimental results to
correspond to different storm situations.
August 2015
United Research Center
Investigation of the lubricity effects of three different environmentally friendly
refrigerants. Identical steel discs were tested using a high pressure tribometer with a
pin on disk apparatus set up with varying conditions, then a profile obtained and SEM
analysis done to determine cause and type of failure.
September 2015
Cryogenic Testing Apparatus
I designed and built an apparatus to test samples at temperatures between -40°C and -
129° C, with the capability to test much colder. Low temperatures can be achievedvery
quickly, cooling rate limited by the thermal contraction of sample. Set up is less than
10% as expensive to create as industry coolingapparatus.