Tungsten is known to be the hardest element present on earth. It is associated with many uses, owing to its hardness. But the recent trend of using tungsten rings calls for gaining an insight into the chemistry and the fundamentals behind. Rings are actually meant to stay with you forever. The characteristic features of ring are durability, scratch-resistance, hardness and polished and shining surface. It also demands flexibility in its casting and non-brittleness while it is being molded in the desired form.
Black tungsten rings satisfy all these basic requirements and impart some other unique features too. These rings are actually made of a chemical compound named tungsten carbide, which is the combined form of tungsten and carbon. It can be used as a substitute of diamond in its hardness and polishing capabilities. Being three times more dense than steel, it possesses weight also.
These tungsten rings are finding special places as tungsten wedding bands for both the bride and the groom. Wedding bands, in commonplace, should be water-resistant, scratch proof and durable enough to last long for years. They also require high polishing and shine which can actually be provided to tungsten carbide. Having extra high melting point, rings and bands made of tungsten carbide are less prone to melting or shape deformities.
This high melting point feature alone accounts for the ability of tungsten to be cast or molded in any desired shape and it remains as it is forever. They are less vulnerable to damages from environmental changes like rust or white oxide layer coating. Hence, they are always crystal clear and lustrous like a mirror.
Engraving process is also possible on tungsten made rings as in the molten state, the engraved matter is affixed and it remains unchanged once the ring solidifies in the given shape. So the chemistry behind tungsten rings can help form a good chemistry between the couples!
December 31st, 2009 at 5:05 am
Does free really mean free???
January 7th, 2010 at 11:50 am
The visual effects are great, even though a lot of it was :”Look, we have 3-D!” They stayed very close to the original story, though they added a miniaturization segment that was unnecessary. Carrey was muted and did a great job with some occasional clowning around. It was actually scary in some parts, as it should be, but not overwhelmingly, and there were some laughs as well.