Andrew Mereness has over 13 years of experience in research chemistry focusing on composite materials, electrochemical devices, and catalysis. He has successfully developed several new technologies including improving the strength of PETI-330 resins, creating a conductive and transparent film for space applications, and designing a low-cost reactor for catalyst testing. Mereness also co-invented a hybrid lithium battery intended for use on Mars that outperformed commercial devices. He has expertise in materials handling, instrumentation, microscopy, and analytical chemistry.
IONIC LIQUIDS can replace traditional industrial processes such as electrodeposition, pyro and hydrometallurgy (solid-liquid extraction, liquid-liquid extraction, precipitation) for new eco-friendly, no volatile organic solvents containing, no energy- intensive, and cost effective processes .
ThermaLogix is a full-service advanced thermographic nondestructive testing (NDT) solution provider offering a complete suite of turnkey solutions ranging from field inspection services to co-located service models. We work closely with clients to develop and deploy value added solutions. Our team includes certified operators, engineers, and scientists with decades of real world experience in thermographic NDT.
The measurement of chlorine is a mainstay of many disinfection and drinking water treatment processes. Higher levels of accuracy in measurement of chlorine increase the surety of the disinfection process while limiting use of disinfection chemical products to only what is necessary.
IONIC LIQUIDS can replace traditional industrial processes such as electrodeposition, pyro and hydrometallurgy (solid-liquid extraction, liquid-liquid extraction, precipitation) for new eco-friendly, no volatile organic solvents containing, no energy- intensive, and cost effective processes .
ThermaLogix is a full-service advanced thermographic nondestructive testing (NDT) solution provider offering a complete suite of turnkey solutions ranging from field inspection services to co-located service models. We work closely with clients to develop and deploy value added solutions. Our team includes certified operators, engineers, and scientists with decades of real world experience in thermographic NDT.
The measurement of chlorine is a mainstay of many disinfection and drinking water treatment processes. Higher levels of accuracy in measurement of chlorine increase the surety of the disinfection process while limiting use of disinfection chemical products to only what is necessary.
Construction and Test of a Magnetic Field CloakNils Feege
Results from the Electron Ion Collider Detector R&D project to build and test a magnetic field cloak for charged particle beams. Presentation given at the Electron Ion Collider User Group Meeting in Trieste, Italy, on July 21st, 2017.
LED, BGA, and QFN assembly and inspection case studiesBill Cardoso
In this tutorial we cover the manufacturing of the most challenging surface mount parts to assemble and inspect today: LEDs, BGAs, and QFNs. The tutorial focuses on the pitfalls of manufacturing and inspecting PCBs with these devices. Presentations will provide content to solve many of the technical challenges encountered by luminaire integrators and contract manufacturers. This tutorial is targeted at manufacturing, process, and quality personnel responsible for designing, implementing and/or controlling the surface mount device application and inspection process. Those personnel responsible for training operators and technicians to perform assembly inspection or control the manufacturing process would also benefit from this tutorial.
We will use a library of assemblies inspected at Creative Electron’s Advanced Solutions Lab to provide attendees with real life examples of assembly issues. Attendees are welcome to send their own assemblies to Creative Electron prior to the webtorial so that the material can be used during training.
Topics Covered:
How LED material handling and storage impact assembly performance
LED x-ray inspection: How voids cost you money
Case study: How lack of quality killed a successful LED company
Process design for BGA and QFN assembly and rework
BGA and QFN x-ray inspection: How to see what often goes wrong
X-Ray as a tool for quality process design and control
- All x-ray images taken with TruView X-Ray Inspection systems.
Process and Input Material Control Using Handheld X-Ray FluorescenceOlympus IMS
This presentation from AISTech 2018 covers the following topics:
- X-Ray Fluorescence (XRF) Theory
- Handheld X-Ray Fluorescence (HHXRF) Alloy Verification
- Compositional Results
- Other Process-Related Material Analyses
- Integration/Management of Process Data
For more information, visit: https://www.olympus-ims.com/en/xrf-xrd/xrf-handheld/
Weldability Study of AISI 1035 Steel Using Hydrated E6013 Electrode in Wet Tr...Yuga Lendistanu
DISCLAIMER. This document was presented in International Conference on Design & Application of Engineering Materials (ICDAEM) and Seminar Nasional Metalurgi dan Material (SeNaMM) in Institut Teknologi Bandung, 2018. This document and all the contents are free for educational use with attribution to the authors. Complete bibliography is listed on https://drive.google.com/file/d/1inX2ufF9M9XLDuX0pmTuniQMCNSkC5nx/view?usp=sharing .Some of them was not uploaded on the presentation unintendedly.
ABSTRACT. In wet tropical climate regions, ambient water vapor tends to be rapidly picked up by welding electrode flux. Arc contaminated by hydrogen derived from the damp flux will increase risk of defects in welded joint, especially hydrogen cracking. In this work, weldability of AISI 1035 steel is studied based on modified Welding Institute of Canada (WIC) Test and variation of moisture picked-up by AWS A5.1 E6013 electrode in a conditioned atmosphere. On the third day after welding, surface crack was examined using dye penetrant technique. In consequence of no preheat implemented, solidification cracking occurred along 37% of the weld length although the flux was dried with 0% absorbed moisture relative to the flux weight, whereas more severe crack was found 48% on the sample welded using damp electrode with 7% absorbed moisture due to solidification and diffusible hydrogen. Preheat at 150°C reduced the risk of cracking which did not present on the sample welded by electrode containing 0% and 1.42% absorbed moisture, but 3% crack still appeared on the sample welded using electrode having 1.83% absorbed moisture because of hydrogen contribution. As the one of analysis result, preheating at 150°C and 1.42% maximum absorbed moisture in the flux is recommended for the E6013 electrode.
The Tekes project Structural integrity of Ni-base alloy welds (SINI) was carried out at Aalto University and VTT during the period from 2010 to 2014. In nuclear industry applications, the degradation of Ni-base alloy dissimilar metal welds (DMWs), both in pressurised water reactor (PWR) and in boiling water reactor (BWR) plants, is an extensive international problem. The project participates with ongoing international cooperation in USA (Electric Power Research Institute EPRI, Alloy 690/52/152 PWSCC Research Collaboration) and in Japan (Tohoku University) for the conduction of new Ni-base alloy research. The research need is actual, especially because indications have been found in the DMWs in the reactor pressure vessel nozzle of BWRs similar to Finnish BWR designs and European pressurised water reactor (EPR PWR) -plant under construction contains a large number of varying and new types of dissimilar metal welds of which no previous experience is available.
The main focus of the project was to investigate the weldability of Alloy 690 base metal corresponding filler metal Alloy 52 and the properties of the welded joint. Comparable reactor pressure vessel (RPV) safe-end weld joint was made by narrow-gap tungsten inert gas (TIG) welding with Alloy 52 filler metal for research purposes. Also prototypical BWR reactor pressure vessel (RPV) safe-end weld joint was made with Alloy 82/182 filler metals. Determination of the mechanical properties and characterization of the microstructures of the welded joints were conducted. Crack initiation tests in autoclave were made in different environments. After PINC (Program for the Inspection of Nickel Alloy Components) round-robin program new PARENT (Program to Assess Reliability of Emerging Non-destructive Techniques for Dissimilar Metal Welds) round-robin program was started where VTT participated. Based on the PINC results, new non-destructive testing methods were developed to enhance the reliability of detection and accuracy of sizing of flaws in nickel-based alloy dissimilar metal welds.
Separate reports:
1. Holmström, P. (2012), The effect of mismatch on the mechanical properties of a dissimilar metal weld. M.Sc. Thesis, Aalto University, Espoo, Finland, 162 p. + app. 4 p.
2. Mouginot, R. and Hänninen, H. (2013), Microstructures of nickel-base alloy dissimilar metal welds. Aalto University publication series SCIENCE + TECHNOLOGY, 5/2013, https://aaltodoc.aalto.fi/handle/123456789/9006, Aalto University, Espoo, Finland, 178 p.
3. Keinänen, H. (2013), Computational estimation of the risk of hot cracking in narrow gap welding. Research report VTT-R-08369-13, VTT Technical Research Centre of Finland, Espoo, Finland, 27 p. + app. 10 p.
Advanced Materials International Forum, Bari 18-19 settembre, conferenza internazionale dedicata ai materiali avanzati e alle loro possibili applicazioni nei settori industriali, con un focus particolare sui trasporti (aerospazio, automotive, navale e cantieristico).
Construction and Test of a Magnetic Field CloakNils Feege
Results from the Electron Ion Collider Detector R&D project to build and test a magnetic field cloak for charged particle beams. Presentation given at the Electron Ion Collider User Group Meeting in Trieste, Italy, on July 21st, 2017.
LED, BGA, and QFN assembly and inspection case studiesBill Cardoso
In this tutorial we cover the manufacturing of the most challenging surface mount parts to assemble and inspect today: LEDs, BGAs, and QFNs. The tutorial focuses on the pitfalls of manufacturing and inspecting PCBs with these devices. Presentations will provide content to solve many of the technical challenges encountered by luminaire integrators and contract manufacturers. This tutorial is targeted at manufacturing, process, and quality personnel responsible for designing, implementing and/or controlling the surface mount device application and inspection process. Those personnel responsible for training operators and technicians to perform assembly inspection or control the manufacturing process would also benefit from this tutorial.
We will use a library of assemblies inspected at Creative Electron’s Advanced Solutions Lab to provide attendees with real life examples of assembly issues. Attendees are welcome to send their own assemblies to Creative Electron prior to the webtorial so that the material can be used during training.
Topics Covered:
How LED material handling and storage impact assembly performance
LED x-ray inspection: How voids cost you money
Case study: How lack of quality killed a successful LED company
Process design for BGA and QFN assembly and rework
BGA and QFN x-ray inspection: How to see what often goes wrong
X-Ray as a tool for quality process design and control
- All x-ray images taken with TruView X-Ray Inspection systems.
Process and Input Material Control Using Handheld X-Ray FluorescenceOlympus IMS
This presentation from AISTech 2018 covers the following topics:
- X-Ray Fluorescence (XRF) Theory
- Handheld X-Ray Fluorescence (HHXRF) Alloy Verification
- Compositional Results
- Other Process-Related Material Analyses
- Integration/Management of Process Data
For more information, visit: https://www.olympus-ims.com/en/xrf-xrd/xrf-handheld/
Weldability Study of AISI 1035 Steel Using Hydrated E6013 Electrode in Wet Tr...Yuga Lendistanu
DISCLAIMER. This document was presented in International Conference on Design & Application of Engineering Materials (ICDAEM) and Seminar Nasional Metalurgi dan Material (SeNaMM) in Institut Teknologi Bandung, 2018. This document and all the contents are free for educational use with attribution to the authors. Complete bibliography is listed on https://drive.google.com/file/d/1inX2ufF9M9XLDuX0pmTuniQMCNSkC5nx/view?usp=sharing .Some of them was not uploaded on the presentation unintendedly.
ABSTRACT. In wet tropical climate regions, ambient water vapor tends to be rapidly picked up by welding electrode flux. Arc contaminated by hydrogen derived from the damp flux will increase risk of defects in welded joint, especially hydrogen cracking. In this work, weldability of AISI 1035 steel is studied based on modified Welding Institute of Canada (WIC) Test and variation of moisture picked-up by AWS A5.1 E6013 electrode in a conditioned atmosphere. On the third day after welding, surface crack was examined using dye penetrant technique. In consequence of no preheat implemented, solidification cracking occurred along 37% of the weld length although the flux was dried with 0% absorbed moisture relative to the flux weight, whereas more severe crack was found 48% on the sample welded using damp electrode with 7% absorbed moisture due to solidification and diffusible hydrogen. Preheat at 150°C reduced the risk of cracking which did not present on the sample welded by electrode containing 0% and 1.42% absorbed moisture, but 3% crack still appeared on the sample welded using electrode having 1.83% absorbed moisture because of hydrogen contribution. As the one of analysis result, preheating at 150°C and 1.42% maximum absorbed moisture in the flux is recommended for the E6013 electrode.
The Tekes project Structural integrity of Ni-base alloy welds (SINI) was carried out at Aalto University and VTT during the period from 2010 to 2014. In nuclear industry applications, the degradation of Ni-base alloy dissimilar metal welds (DMWs), both in pressurised water reactor (PWR) and in boiling water reactor (BWR) plants, is an extensive international problem. The project participates with ongoing international cooperation in USA (Electric Power Research Institute EPRI, Alloy 690/52/152 PWSCC Research Collaboration) and in Japan (Tohoku University) for the conduction of new Ni-base alloy research. The research need is actual, especially because indications have been found in the DMWs in the reactor pressure vessel nozzle of BWRs similar to Finnish BWR designs and European pressurised water reactor (EPR PWR) -plant under construction contains a large number of varying and new types of dissimilar metal welds of which no previous experience is available.
The main focus of the project was to investigate the weldability of Alloy 690 base metal corresponding filler metal Alloy 52 and the properties of the welded joint. Comparable reactor pressure vessel (RPV) safe-end weld joint was made by narrow-gap tungsten inert gas (TIG) welding with Alloy 52 filler metal for research purposes. Also prototypical BWR reactor pressure vessel (RPV) safe-end weld joint was made with Alloy 82/182 filler metals. Determination of the mechanical properties and characterization of the microstructures of the welded joints were conducted. Crack initiation tests in autoclave were made in different environments. After PINC (Program for the Inspection of Nickel Alloy Components) round-robin program new PARENT (Program to Assess Reliability of Emerging Non-destructive Techniques for Dissimilar Metal Welds) round-robin program was started where VTT participated. Based on the PINC results, new non-destructive testing methods were developed to enhance the reliability of detection and accuracy of sizing of flaws in nickel-based alloy dissimilar metal welds.
Separate reports:
1. Holmström, P. (2012), The effect of mismatch on the mechanical properties of a dissimilar metal weld. M.Sc. Thesis, Aalto University, Espoo, Finland, 162 p. + app. 4 p.
2. Mouginot, R. and Hänninen, H. (2013), Microstructures of nickel-base alloy dissimilar metal welds. Aalto University publication series SCIENCE + TECHNOLOGY, 5/2013, https://aaltodoc.aalto.fi/handle/123456789/9006, Aalto University, Espoo, Finland, 178 p.
3. Keinänen, H. (2013), Computational estimation of the risk of hot cracking in narrow gap welding. Research report VTT-R-08369-13, VTT Technical Research Centre of Finland, Espoo, Finland, 27 p. + app. 10 p.
Advanced Materials International Forum, Bari 18-19 settembre, conferenza internazionale dedicata ai materiali avanzati e alle loro possibili applicazioni nei settori industriali, con un focus particolare sui trasporti (aerospazio, automotive, navale e cantieristico).
Practical Implementation Of Renewable Hydrogen & Fuel Cell Installations in t...guest083950
Paper presented at the conference Detail Design in Architecture 8 at University of Wales Institute Cardiff, on the 4th September 2009.
Authors: Gavin D. J. Harper & Ross Gazey
Test Plan Development using Physics of Failure: The DfR Solutions ApproachCheryl Tulkoff
oProduct test plans are critical to the success of a new product or technology
oStressful enough to identify defects
oShow correlation to a realistic environment
oPoF Knowledge can be used to develop test plans and profiles that can be correlated to the field.
oChange control processes and testing should not be overlooked (reliability engineer needs to stay involved in sustaining).
oOn-going reliability testing can be a useful (but admittedly imperfect) tool.
oPoF Modeling is an excellent tool to help tailor & optimize physical testing plans
Advanced Materials International Forum, Bari 18-19 settembre, conferenza internazionale dedicata ai materiali avanzati e alle loro possibili applicazioni nei settori industriali, con un focus particolare sui trasporti (aerospazio, automotive, navale e cantieristico).
This paper explains the fabrication of thin film using modified Physical Vapor Deposition (PVD) Module. Physical Vapor Deposition (PVD) is a variety of vacuum deposition and is a general term used to describe any of a variety of methods to deposit thin films by the condensation of a vaporized form of the material onto various surfaces. The surface morphology of various such as Titanium Dioxide and Aluminum thin film has been studied. The Titanium Dioxide and Aluminum thin film has been fabricated on Silicon (Si) substrate using modified Physical Vapor Deposition (PVD) module system. The process started with the establishment of process flow, process modules, and process parameters. Two modules were developed. The characteristics prior to the thin film fabrication namely surface morphology, metal thickness characterization and V-I characteristic were recorded. The samples were characterized by Optical Microscope, Atomic Force Microscope (AFM),X-ray diffraction (XRD) and I - V characterization. The result and data were analyzed and applied in the fabrication of thin film using various materials. The thin film fabrication process used Titanium Dioxide (TiO2) nanopowder and Aluminum (Al2O3) nanopowder for the coating process. The result for each processes are presented in this paper.
OECD Global Forum on the Environment dedicated to Per- and Polyfluoroalkyl Su...OECD Environment
PFAS, which stands for per- and polyfluoroalkyl substances, are a diverse group of chemicals that include PFCAs, PFOA, PFSAs, PFHxS, and thousands of others. These chemicals have been in commercial production since the 1950s and are now widely used in consumer and industrial applications. One characteristic of PFAS is their persistence in the environment, as they are extremely resistant to degradation. PFAS have emerged as contaminants of global concern because of their potential to accumulate in the human body and food chains.
On 12-13 February 2024, a wide range of stakeholders, including governments, industry, non-governmental organisations (NGOs), and academics came together to discuss various topics related to PFAS. These topics covered areas such as country risk management approaches, innovation challenges for finding safer alternatives, effective risk communication strategies, monitoring techniques, waste management, and approaches to managing contamination.
ITMA Materials Technology is a Research and Technology Organization, aiming at providing solutions to industry by means of R&D Projects, Technical Assistances and Technological Services. Check out more info at our website.
1. Andrew S. Mereness
Email: amarinus11@yahoo.com
LinkedIn: http://www.linkedin.com/pub/andrew-mereness/b/270/90b
Phone: 303-501-7855
950 Juniper Hills Ln, Parachute, CO 81635
Career Summary
Research chemist with 13 years of experience developing and implementing innovative
technologies, with a primary focus on composite materials development, electrochemical devices,
and gas phase catalysis
Work Experience
Research Chemist 2000-2014
Eltron Research and Development, Boulder, Colorado
Successful Development ofNewTechnologies
Improved the strength of PETI-330 resins cured outside of an autoclave by 20%. Peti-330 cure
results in evolved gasses at atmospheric pressures found outside an autoclave, filling composite
parts with strength-reducing voids, like Swiss cheese. The patentable technology removed these
gasses,resulting in a lower void volume for the finished part.
Co-invented and characterized a monatomic oxygen resistant, semi-transparent and conductive
film (Conductran™) for use in Multi-Layer Insulation blankets for the space industry.
Incorporation of carbon particles into state-of-the-art electrostatic discharge (ESD) films results
in a solid black color. Several patentable discoveries were made that allowed the incorporation
different conductive material(s) without the loss of the film’s mechanical properties.
Designed and implemented a reactor for gas-to-liquids catalyst testing which was able to control
flows of 15 sccm (standard cubic centimeters per minute) at 200°C through a 500 psi pressure
drop for less than $3,000 in equipment costs. A senior scientist developed a catalyst, but wished
to control gas flows through the test reactor. On hand equipment included surplus mass flow
controllers that were two orders of magnitude too large, and pressure regulators that were three
orders too large. Perseverance,ingenuity, and technical expertise resulted in a usable test reactor
system.
Prevented employee exposure to chemical vapors, kept vapors below ignition concentrations and
prevented contamination of finished Conductran™ films with dust particles using an engineered
enclosure. Cure of the Conductran ™ films results in the liberation of flammable organic vapors.
Engineered and fabricated a ventilated dust control enclosure and film casting booth to ensure
quality and prevent mishaps.
Co-invented a hybrid Lithium battery capacitor device intended for use on Mars that
outperformed commercial devices by 10%. Mars’s surface is cold, but substantial heating of
equipment can occur during daylight hours, rendering conventional electrolytes unusable.
Suitable materials and fabrication methods were developed and tested to overcome the limitations
of conventional electrolytes. The team accomplished a substantial portion of the work with
unpaid overtime, ensuring a successfuloutcome.
2. Key Skills
Electrical: Setup and wiring of electronic control hardware;; soldering; multimeters
Materials handling: machine shop experience; Drybox; Cryogenics; Environmental test chambers;
Composite materials manufacture and characterization
Instrumentation: Custom reactor setup and operation; Arbin battery testing equipment; HP dataloggers;
Keithley electrometers; Instron mechanical test rigs; Fast and accurate use of measuring tools
such as pipettors, laboratory scales,and micrometers; Gas Chromatographs; UV-VIS, FTIR,
DSC, TGA, TMA, BET
Microscopy: Opticalmicroscopy; Colorview III soft imaging system (camera) with Olympus soft
imaging solutions software; Sample polishing; SEM sample prep; XRD sample prep; Microscope
photography
Wet Chemistry: Acid digestion; Titration; Dilution; Distillation; Water analysis; Chemical waste
handling and disposal
Computer and other skills: Data reduction and presentation with statistical analysis using Excel;
Generation of documents in report-ready format using MS Word; Solidworks; Research,
procurement, and assembly of custom computer systems (AMD and Intel), 8/15 is the most
recent; Windows 95 thru Windows 10; Setup and use of Linux computers; Training; Technical
writing; SOP generation
Essential Knowledge and Application ofResearch and Development Processes
Lithium Cell Manufacture and Characterization: As part of a team effort, codeveloped and
characterized a battacitor device with a non-standard electrolyte for use under conditions found
on Mars
Composite Materials: As part of a team effort,tested novel epoxy composites for use in the International
Thermonuclear Experimental Reactor (ITER).
Microscopy: Developed a method for post-run catalyst particle analysis utilizing microscopy. Automated
particle counting process.
Materials Handling: Knowledge and application of safe handling practices of toxic and flammable
materials. Experience conducting work in the drybox environment.
Analytical Chemistry: Used instrumentation and techniques for quantitative and qualitative chemical
analysis.
Electrical/Electronics: Rewired an industrial kiln for use with a programmable temperature controller.
Familiar with safe practices for working with high voltage/high current systems.
Catalyst Manufacture and Characterization: Co-developed reverse water-gas shift catalyst for use in
the space program, including reactor construction, as well as operation and manufacture of
catalyst pellets.
Education
B.A. Chemistry, English minor, completed December 1999
Western State College, Gunnison, Colorado
Publications
Fabrication, Evaluation and Radiation Behavior of S2-Glass Fiber Reinforced Polyimide
Laminates for Cryogenic Applications, The Journal of High Performance Polymers,August 2007
High Service Temperature Polymer Matrix Composite Process Development,Proceedings of the
Society for Advancement of Material and Process Engineering (SAMPE) October 19, 2009)