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https://www.autoblog.com/2017/11/22/boschs-new-brakes-tungsten-coated-last-longer-keep-wheels-clean-reduce-emissions/ Bosch has announced its new iDisc tungsten-coated brakes, which will reduce brake dust up to 90 percent compared to what's currently on the road. Rotors will last about twice as long, and wheels won't get as dirty, something particularly prevalent on European cars. Bosch says that braking performance is roughly the same as a carbon ceramic rotor in terms of stopping power and brake fade. These rotors won't rust, either.

By MERLIN LAFLEUR, 2009/12/02 http://gold-quote.net/en/articles/fake-tun...n-gold-bars.php The counterfeit story This October, bankers in Hong Kong were in for a rude shock when they discovered some gold bars from the US to be actually gold plated tungsten i.e., fake gold bars. Acting fast, the Chinese officials found the perpetrators within hours. It seems that fake Tungsten blanks, between 1.3 and 1.5 million 400 oz, were manufactured in the US about fifteen years ago during the Clinton administration. Said to have been done by a very sophisticated refiner, 640,000 of these tungsten planks were gold plated and shifted to Fort Knox. The remaining also gold plated, but sold into the international market. (Fort Knox , as you may be aware, is the United States Bullion Depository, where the official gold reserves of the federal government are stored. This depository of about 4,603 tons (4 176 metric tonness) is the second highest gold depository in the US after the Federal Reserve Bank of New York's underground vault in Manhattan (5,000 metric tonness of gold). Whoever pulled this one on the gold bars had connections inside the government, big banks and also a top-of-the-line fabrication facility. For, counterfeit is not something new for the US government, it did this is 1964 when zinc dimes clad in silver were introduced. That's why the pre 1964 coins are valued more. Elsewhere, early this year, another counterfeit story made rounds as some of the gold bars in the vaults of the National bank of Ethiopia were found to be gold plated steel. It made news when the shipment of gold was returned by South Africa. It only could have been the work of a genius as fake gold bars made of steel are among the easiest to detect as they are lighter. Among gold coins, 22k Gold coins such as Krugerrand, are less likely to be counterfeited because the density of 22k gold minted from gold alloy that is 91.67 percent pure, is far apart from that of tungsten. Tungsten has the same density (19.25g/cm3) as gold, so a fake bar is indistinguishable by weighing it. In comparison the density of pure 24k gold is within 0.26% of tungsten.