Tungsten Oxide Surface Coating Makes Steel Stronger And More Durable II
- Category: Tungsten's News
- Published on 20 November 2015
- Hits: 644
The coating not only withstood all these tests but was also found to make steel stronger compared to the uncoated ones.
The researchers said that the concept of combining durability and anti-fouling properties in a coating was not as successfully made into reality until now, because rough texture often required to resist fouling makes coated metals weaker.
The team made this possible by making an ultrathin film of thousands of small tungsten oxide islands to directly coat the steel surface. If one part of one island is destroyed, the damage does not spread to the other islands due to the lack of connection among them. This helps the coating retain its repelling properties while helping the steel improve its durability.
Aizenberg said that the team's success proved that careful surface engineering is capable of combining two conflicting functions to work together in a way that doesn't hinder each other's performances.
The coating material had potential to be used on different industrial and commercial applications like non-fouling medical devices and tools, 3-D printers, large scale use on buildings and on marine vessels or vehicles. The beneficial properties the coating provided could save industries millions in production and maintenance costs.
"This research is an example of hard core, classic material science," said Aizenberg. "We took a material that changed the world and asked, how can we make it better?"
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Tungsten Oxide Surface Coating Makes Steel Stronger And More Durable I
- Category: Tungsten's News
- Published on 20 November 2015
- Hits: 680
A newly made surface coating for steel can make it stronger and more resistant to rust and corrosion, according to its developers.
Scientists from Harvard's John A. Paulson School of Engineering and Applied Sciences (SEAS) were able to create a surface coating for steel that not only repels corrosion but also makes the metal stronger.
"Our (coating material) is...more durable than any anti-fouling material that has been developed before," said Joanna Aizenberg, a core member of the Wyss Institute for Biologically Inspired Engineering at Harvard University.
Aizenberg and her team developed a new surface coating made from rough, nanoporous tungsten oxide. It was found to be the most durable, anti-corrosive and anti-fouling coating material to date, tried and tested to resist rust and repel any kind of liquid even after the coated metal has sustained considerable structural damage.
The team tested the coating's durability by scratching with stainless steel tweezers, diamond-tipped scribers, screwdrivers and beating it hard, heavy beads.
Anti-wetting properties were tested by soaking the metals on various liquids like oil, water, blood and corrosive chemicals.
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New Report Sheds Light on the Sodium Tungstate Sales Global Market
- Category: Tungsten's News
- Published on 20 November 2015
- Hits: 609
The report focuses on global major leading companies providing information such as company profiles, sales, sales revenue, market share and contact information. Then the Sodium Tungstate OEM market and Sodium Tungstate production market status is discussed.
The report provides a basic overview of the Sodium Tungstate industry including definitions, classifications, applications and industry chain structure.
Development policies and plans are discussed as well as manufacturing processes and cost structures are also analyzed. This report also states import/export consumption, supply and demand figures, cost, price, revenue and gross margins.
The report then analyzes the global Sodium Tungstate market size (volume and value), and the sales segment market is also discussed by product type, application and region.
The major Sodium Tungstate market (including USA, Europe, China, Japan,.) is analyzed, data including: market size, import and export, sale segment market by product type and application. Then we forecast the 2016-2021 market size of Sodium Tungstate.
Finally the marketing, feasibility of new investment projects are assessed and overall research conclusions offered.
With 183 tables and figures the report provides key statistics on the state of the industry and is a valuable source of guidance and direction for companies and individuals interested in the market.
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Commodity Index of Ammonium Paratungstate is 33.62 on November 12
- Category: Tungsten's News
- Published on 18 November 2015
- Hits: 973
Commodity Index of Ammonium Paratungstate is 33.62 on November 12, unchanged from yesterday, which make a historical new low record in cycle, compared with the highest point of 100.00 points on September 1, 2011 decreased by 66.38%.

|
Date |
08-19 |
08-28 |
09-06 |
09-15 |
09-24 |
10-03 |
10-12 |
10-21 |
10-30 |
11-08 |
11-17 |
|
Commodity Index |
44.89 |
43.83 |
43.40 |
43.06 |
42.64 |
42.30 |
41.45 |
38.38 |
37.73 |
37.02 |
33.62 |
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New Detectors Allow Search for Lightweight Dark Matter Particles
- Category: Tungsten's News
- Published on 17 November 2015
- Hits: 749
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Wolf Minerals' Boss Confident of Tungsten Price Rebound
- Category: Tungsten's News
- Published on 17 November 2015
- Hits: 823
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W Resources Now Fine-Tuning Plans for Tungsten Production
- Category: Tungsten's News
- Published on 16 November 2015
- Hits: 1078

Michael Masterman has once again put his money where his mouth is by investing significant money into the company he chairs, W Resources (LON:WRES).
W Resources Shares up as it Reports "Significant" Régua Resource Upgrade
- Category: Tungsten's News
- Published on 16 November 2015
- Hits: 788
W Resources shares pushed higher as it unveiled a significant increase in resources at the Régua project in northern Portugal.
W Resources (LON:WRES) shares pushed higher as it unveiled a "significant" increase in resources at the Régua project in northern Portugal.
Notably, the higher confidence indicated resources now stand at 3.76 million tonnes at 0.304% tungsten trioxide - a 76% increase on the previous figure of 2.14 million tonnes at 0.367% WO3 from three years ago.
The total resource tonnage increased by 22% to 5.46 million tonnes at a grade of 0.28% tungsten, up from 4.46 million tonnes.
The group's chairman Michael Masterman told investors: "The drilling campaign at Régua exceeded our initial expectations and we are delighted that the work to date has resulted in this significant increase in the indicated resources at Régua.
"The results to date provide us with a strong basis for the next phase of mine planning as we move the project nearer to production.
"The next step is now to complete the mine planning and reserve estimation process, which is targeted for the first quarter 2016.
"Metallurgical work has progressed well over the last quarter with good metal recoveries. A full update on the metallurgical programme and results will be provided in the next two months."
The latest resource is based on thick, high grade sections of tungsten at or near surface.
In August this year, the firm said it was considering a shallow open pit mine design in a first phase with the second phase to be a larger scale high grade underground operation.
W Resources shares added 3.17% in early deals to 0.65p
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Commodity Index of Ammonium Paratungstate is 34.26 on November 12
- Category: Tungsten's News
- Published on 13 November 2015
- Hits: 681
Commodity Index of Ammonium Paratungstate is 34.26 on November 12, 0.78 lower than yesterday, which make a historical new low record in cycle, compared with the highest point of 100.00 points on September 1, 2011 decreased by 65.74%.

|
Date |
08-14 |
08-23 |
09-01 |
09-10 |
09-19 |
09-28 |
10-07 |
10-16 |
10-25 |
11-03 |
11-12 |
|
Commodity Index |
45.04 |
44.89 |
43.40 |
43.15 |
42.81 |
42.30 |
42.30 |
38.98 |
38.30 |
37.02 |
34.26 |
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The Tungsten Lifecycle Chart
- Category: Tungsten's News
- Published on 13 November 2015
- Hits: 907
Our all-purpose Lifecycle chart serves particularly well, in the case of Tungsten, to show the state of progress of the various players vis-à-vis each other on the exploration-production continuum (not that some players, irrespective of which metal, imagine themselves production-bound).
This chart raises the interesting question of how to deal with juniors. During the years of the Supercycle any junior in a given metal could be seen as a potential player. As it wended its way through the Resource/PEA/PFS/BFS continuum there was always an assumption that financing would be forthcoming by hook or by crook for a worthy project. That is now not the case. So do we position a no-hope junior on the Lifecycle Chart at all or just cast them into the outer darkness?
The second issue relates to “naming names” because it is not particularly a company that it somewhere on the timeline but rather individual projects. A good example is Almonty, which has a producing mine in Spain, a near producing mine in Australia and a more distant prospect in South Korea. The stricken North American Tungsten has a producing mine in the Yukon and a project that is way at the other end of the lifecycle and likely to stay there because of its owner's travails.


Looking back at the Lifecycle Chart (below) we published in 2011, the companies at the very right were Malaga and North American Tungsten, now both in administration or bankruptcy, and Malaga's property is in the hands of new owners.
Geodex sold its project to Northcliff. Largo mothballed its Brazilian mine almost as soon as it got into operation. Woulfe was bought by Almonty and the “other” Wolf has advanced mightily. King Island Scheelite had a management and project reconfiguration (for the better) but that has put it no further ahead of where it was. Colt has oscillated around trying to decide if it will be a Tungsten project or a gold venture. Almonty did not even figure on our radar screen!
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