Talk:Tungsten carbide
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[edit] Preparation
How do you make Tungsten Carbide?
- By reacting tungsten and carbon at high temperatures. I can't yet find a reference for exactly how high. Physchim62 20:50, 22 August 2005 (UTC)
I found this patent http://www.freepatentsonline.com/7108831.html which seems to suggest that it can be produced by high temperature reaction of tungsten oxides with a carbon dioxide/monoxide mixture. This one in particular mentions the inclusion of hydrogen in the gas mixture, but several other patents do not. I'm not sure of the exact industrial method that is most widely used. Naffer 01:27, 5 December 2006 (UTC)
- The method most commonly used in the industry is sintering followed by grinding.
Veddan 10:00, 19 March 2007 (UTC)
[edit] Neutron reflector
There was a "trivia" section here mentioning the death of Louis Slotin; I removed it, since trivia sections suck. (Except maybe for articles on episodes of television shows, where nobody cares. :-) What is worth adding to the article is that tungsten carbide has been/is used as a neutron reflector, but I have no idea how to put in any more than "tungsten carbide has been used as a neutron reflector", which is a bit lacking. If anyone has more details (besides the lame "there once was a criticality accident involving tungsten carbide"), do add. JRM · Talk 10:04, 7 July 2006 (UTC)
[edit] copy(paste)vio?
This series of additions seems to have grabbed information directly from hardmaterials.sandvik.com (like this page. --Splarka (rant) 07:06, 26 August 2006 (UTC)
- I removed the copyrighted material and warned the user with {{subst:nothanks|Tungsten carbide}}. —Keenan Pepper 14:50, 26 August 2006 (UTC)
[edit] 71.113.22.200's "Ditungsten Carbide" edits
Is this "Ditungsten Carbide" business legit? —Ben FrantzDale 05:26, 2 January 2007 (UTC)
Yes, it is. It seems very weird that a ionic compound would have an organic prefix, but the same occures with Manganese (IV) Oxide, it is more commonly known as manganese dioxide. Assume that ditungsten carbide refers to the lower oxidation state, tungsten 2+ and mono refers to the higher oxidation state 4+. Kyanite 23:56, 27 March 2007 (UTC)
[edit] In fiction ???
The "In fiction" section adds nothing to our knowledge of tungsten carbide; if they are of interest to anyone at all, it would be Monty Python fans or Halo fans, not tungsten carbide users. Tungsten carbide is probably mentioned thousands of times in fiction of various sorts, why would an encyclopedia mention any of them? How does one decide which fictional mentions are encyclopedic and which aren't? I think this section should be deleted, any other opinions? Sparohok 06:53, 4 February 2007 (UTC)
[edit] Armor-piercing ammunition?
The article seems to be stating that bulk tungsten carbide has been used to fashion AP rounds, but I wonder about this.
Tungsten carbide is very brittle. It is a dense material, with density around 15 g/cc, but not nearly as dense as tungsten or depleted uranium, which are in the 18-19 g/cc range. Pure tungsten and the "heavy metal" compositions of cemented tungsten bound with sintered nickelbronze are still very hard, but more malleable and ductile and less prone to shattering on impact with armor. As far as I am aware, "heavy metal" is in common use today in AP projectiles, but tungsten carbide is not.
Not to long ago i watched a video on youtube about the .50 BMG, one of the marines in the video refered to the M-2(?) armor peircing round as having a tungsten carbide core. just a thought.Kyanite 23:59, 27 March 2007 (UTC)
