Engineer Medical Device

MAHESH K. MATAM

**** ***** **** ***** *-mail:

************@*****.***

Zionsville, IN 46077 Phone: 814-***-****

Objective

Seeking a Materials Engineering and testing opportunity where my expertise

and experience in synthesis, characterization and testing of advanced

ceramics could be utilized.

Summary

. Over 7 years of Materials Engineering of advanced ceramics and ceramic

composite development for gas sensing and piezoelectric applications

. Ceramic films deposition using PLD and spin coating techniques

. Finite element analysis (FEA) using COMSOL Multiphysics

. Acoustic transducers engineering and design for medical, NDT, oil &

natural gas applications

. 7 plus years in product development

Technical skills

. Materials Engineering

. Advanced ceramic/epoxy composite fabrication

. Ceramic synthesis and characterization

. Chemistry of ceramic/epoxy composites

. Finite Element Analysis (FEA) using COMSOL Multiphysics

. Mechanical designing using Solid Works and analysis using COSMOS

. Piezoelectric materials equivalent circuit analysis using ZView

. LABVIEW and instrumentation

. Thorough knowledge of electronics required for ultrasound transducer

design and testing to ASTM standards

. Maintaining and upgrading documentation to ISO9001:2008 standards

. Quality control and maintenance of SOPs, and PWIs

Professional experience

Piezotechnologies Inc., Indianapolis, IN

Transducer Scientist - Jan, 2011 - On going

. Materials Engineering for ultrasonic products

. FEA analysis of acoustic devices and systems

. Advanced piezoelectric ceramic/composite synthesis and characterization

. Mechanical testing of the ceramics and composites

Senior Transducer Design Engineer, Jun, 2007 - Jan, 2011

. Piezoelectric ceramics and product development

. Knowledge of piezoelectric ceramics fabrication and process development

. Expertise in medical device mechanical design, materials, electronics,

testing, and failure analysis

. Acoustic calipers for oil well logging (25,000 psi, 180oC)

. High temperature NDT transducers (180oC) for flaw detection and

level sensing

. High temperature level sensing in molten sodium and bismuth (rated

550oC) and radiation environments

. Designing normal shear and wedge-type shear wave transducers for

rock and wood characterization

. Surface Acoustic Waves (SAW) to detect minute flaws on a meter long

stainless steel cylinders

. Acoustic arrays for imaging in oil wells

Omega Piezotechnologies, State College, PA

Product Development Engineer & Consultant, Mar. 2004-May 2007

Projects & responsibilities

Development of electrostirctive ceramics for high pyroelectric yield

Piezoelectric ceramics powder preparation, fabrication and delivery in

industry scale

Piezoelectric materials synthesis and characterization

. Other R&D activities in advanced and refractory ceramics

. Monitoring research activities in advanced ceramics

. Reports and proposals writing and technical support

. Designing ultrasound transducers for fluid dispensing

. Designing stack actuators using single crystal PMNT and ceramic

PZTs

. Stroke and blocking force measurements

. Designing Langevin type transducers (25 and 40 kHz) for large

volume acoustic cleaning tanks

National Research Council Canada, Ottawa, Canada

NSERC Fellow, Apr, 2003- Feb, 2006

Projects and responsibilities

. Pulsed Laser Deposition (PLD) of advanced ceramic films to sense

hydrocarbons

. Synthesis and characterization of advanced ceramics

. Spin-coating of advanced ceramics using chemical methods

. Fabricating and conducting experiments on gas sensing devices

. Single crystal growth and ceramic synthesis of Pb-based piezoelectrics

. Fabrication of actuators and acoustic transducers

. Modeling impedance data to electrical circuits using passive and

active elements

. System development for usage in auto exhausts or for industrial

environments

. Software integration with hardware using LabVIEW programming on GPIB

and RS232

Simon Fraser University, Vancouver, Canada

Post Doc Research Associate, Mar, 2000 - Feb, 2003

Projects and responsibilities

. Ferro-/piezoelectric ceramics and single crystals synthesis and

characterization

. Characterization using X-rays, Scanning Electron Microscopy, NMR and

others

. Performing dielectric, piezoelectric, pyroelectric, hysteresis loop

measurements

. Conducting ac impedance spectroscopy, ac and dc conductivity and V-I

characteristics as a function of temperature

. Overseeing the research of graduate and undergraduate students

Consulting with Govt. of Canada

A 65 page comprehensive review for Natural Resources Canada, Govt. of

Canada on 'Piezoelectric sensors and actuators in industrial process

control', Dec., 2005

Teaching

Instructor- Undergraduate course on "Inorganic Materials chemistry

(CHEM340)", Simon Fraser University, Burnaby, Canada, Spring 2002.

Education

Department of Physics, Osmania University, Hyderabad, India

Ph.D. 2000 (evaluated by Univ. of Toronto)

Subject: Solid State Physics/ Materials Science

Thesis title: Electrical, dielectric, magnetic, magnetoelectric properties

of BiFeO3-BaTiO3 solid solutions

. Synthesis of piezo-/ferroelectric ceramics using solid state reactions.

Characterization using X-ray diffraction (XRD) and Scanning Electron

Microscopy (SEM).

. Measurement of dielectric, piezoelectric, and ferroelectric properties.

Transport, impedance spectroscopy, analysis of the results.

. Measurement of magnetic and magnetoelectric properties and theoretical

modeling.

Professional Training

Finite Element Analysis (FEA) using COMSOL Multiphysics, Columbus, OH, Feb,

2012

Top five publications (out of 31)

1. Mahesh Kumar, M., et al, (2000) Appl. Phys. Lett. 76: 2764 (cited 332

times, source: Google scholar)

2. Mahesh Kumar, M., et al., (2000) J. Appl. Phys. 87: 855 (cited 147

times, Source: Google scholar)

3. Mahesh Kumar, M., et al., (1998) J. Magn. Magn. Mater. 188: 203 (cited

107 times, Source: Google scholar)

4. Mahesh Kumar, M., et al., (2005) Phys. Rev. B 72: 024104

5. Mahesh Kumar, M., et al., (2005) J. Appl. Phys. 97: 1149161-8

Non-refereed poster contributions - 8

Patent publications

1. Enhanced bandwidth transducer for well integrity measurements, Mahesh

Matam et al, (2011), No. 61,569,872

2. Logging while drilling pulse-echo transducer, Frans L. and Mahesh Matam

(2012), No. 61,592,294

3. Low Frequency broad band ultrasound transducers, Frans L., Mahesh Matam

and Eric Moltz (2012), No. 61, 673,823

Membership in professional bodies

1. IEEE, Ultrasonics and Ferroelctrics

2. Ultrasonic Industry Association

References at request

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