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Scientific Reports - nature.com science feeds

Sunday, 30 August 2015

Life Cycle Management-from The Nickel Institute

http://www.nickelinstitute.org/Sustainability/LifeCycleManagement.aspx

Nickel Containing Stainless Steel from The Nickel Institute_Life Cycle Assessment

http://www.nickelinstitute.org/Home/Sustainability/LifeCycleManagement/LifeCycleAssessments/LCAProgresoPier.aspx

Friday, 21 August 2015

Abrasion Resistance Defined

Materials Selection for Resistance to Abrasion_eg. for applications such as Iron Ore Slurry Transportation http://materialsscienceengineeringdefined.blogspot.com/2015/08/materials-selection-for-resistance-to.html

Wednesday, 19 August 2015

Materials Selection for Resistance to Abrasion_eg. for applications such as Iron Ore Slurry Transportation

An impressive and succinct presentation of materials,mainly special steels for use in ore mineral transportation as slurry often over huge distances.

This most usefull graphical representation of types of materials that can be transported via pipeline, slurries, is given below. On the upper left (LHS) of the diagonal, the materials to be transported are plotted according their Mohr's hardness on a log10 scale (y-axis) against pipeline candidate materials mainly steels, with some ceramic (coatings) classified according to their hardness, both Brinell and Rockwell tests, on the lower right (X-axis)  The inclusion of  soft materials such as general plastics, talc and the more and more in view graphite, (nanoapplics)  provide a strong contrast which highlights the resistance of the steel tube contenders.


A table of contents from his short and to the point publications reads as follows:

     -Typical Mine Applications.
     -Types of Wear.
     -Hardness.
     -Piping Materials.
     -Material Alloying: metallurgy for strength and harndess.
               -Heat treatment (quenching technology) to harden inner surface,
                while maintaining a more ductile exterior surface.
     -Wear Tiles and Inserts: tiles are of course made from materials that are harder and more abrasion        resistant than the base steel piping.
     -Rubber/Poly Lined Pipe.
     -Double Wall Pipes.
     -BiMetallic Pipes. (advantages, but without the disadvantages of the double wall pipes).
     -System Design Considerations:
           Particle size, shape, and hardness, Particle Velocity,

A most instructive read (link to full paper by Robert E. Klemm, P.E. of UltraTech.  )


   

Monday, 17 August 2015

Non-Destuctive Testing-NDT_New way to find tiny flaws in aircraft parts - Info Centre - Research_EU

A new way to find tiny flaws in aircraft parts - Information Centre - Research: "new way to find tiny flaws in aircraft parts" reports collaborated work by the following 5 countries namely:  Belgium  |  France  |  Germany  |  Israel  |  Spain



EU-funded project claims, to have developed the first terahertz scanners for non-destructive testing of aeroplane parts. Outperforming existing technologies, these systems detect small defects on and deep within composite materials - improving safety in the air and helping manufacturers and airline operators optimise maintenance and lower costs.


EU-Research & Innovation.






'via Blog this'

Sunday, 28 June 2015

MIT Technology Review’s 50 Smartest Companies 2015, from Tesla to Uber | MIT Technology Review


Nice work by MIT researchers and MIT Review team. Great graphics and graphical interactivity via the link to MIT Review's site beneath the picture:

MIT Technology Review’s 50 Smartest Companies 2015, from Tesla to Uber | MIT Technology Review: "50 Smartest Companies 2015"

Cheers.and enjoy the info.
'via Blog this'

Thursday, 11 June 2015

Taking the heat off the chip_Global Thermal Interface Materials Report 2015 - Status, Opportunities, Market Forecasts to 2025 -- DUBLIN, June 5, 2015 /PRNewswire/ --


Here is a short rapid introduction and overview to a still hot topic-materials to markets 


"Overheating is the most critical issue in the computer industry. It limits further miniaturisation, power, performance and reliability. The escalation of power densities in electronic devices has made efficient heat removal a crucial issue for progress in information, communication, energy harvesting, energy storage and lighting technologies. As long as electronic systems aren't monolithic, but are built from a wide range of materials such as metals, polymers, ceramics and semiconductors, there will be a need for thermal interface materials." from PRNewswire


The contact area between high power, heat generating components and heat sinks can be as low as 3%, due to the micro-scale surface roughness. Thermal interface materials are required to enhance the contact between the surfaces, and decrease thermal interfacial resistance, and increase heat conduction across the interface. 

Proper selection of Thermal Interface Materials (TIM) is crucial for the device efficiency. Instead of sophisticated cooling technique, it is often better to invest in the interface material. Without good thermal contact, the use of expensive thermally conducting materials for the components is a waste. 


1. Innovation Drivers in this industry

2. Thermal Interface Materials 2015-2025 includes a technology appraisal of the ten key technologies: 


1. Pressure-Sensitive Adhesive Tapes
2. Thermal Adhesives
3. Thermal Greases
4. Thermal Gels, Pastes and Liquids
5. Elastomeric Pads
6. Phase Change Materials
7. Graphite
8. Solders and Phase Change Metals
9. Compressible Interface Materials
10. Liquid Metals 
3. Current and growing opportunities for these technologies

4. The Companies. 

- 3M Electronic Materials
- AI Technology
- AIM Specialty Materials
- AOS Thermal
- DK Thermal
- Dow Corning
- Dymax Corporation
- Ellsworth Adhesives
- Enerdyne
- European Thermodynamics Ltd
- Fralock
- Fujipoly
- GrafTech
- Henkel
- Indium Corporation
- Inkron
- Kitagawa Industries
- LORD
- Laird Tech
- MH&W International
- Minteq
- Momentive
- Parker Chomerics
- Resinlab
- Schlegel Electronics Materials
- ShinEtsu
- Timtronics
- Universal Science 


Global Thermal Interface Materials Report 2015 - Status, Opportunities, Market Forecasts to 2025 -- DUBLIN, June 5, 2015 /PRNewswire/ --:



LINK_for more information.



'via Blog this'

High Purity Cr sources for Superalloys

Energy for th Future:Phil.Trans.A-Vol. 365, N° 1853 / April 15, 2007, curtesy The Royal Soc. London

Engineered foams and porous materials: Phil Trans A. Vol 364, N° 1838 / 06 curtesy_The R Soc. Lond