Hafnium Rings

[Diaboloclese]

Hello everyone,
I have been engaged for a few months and during this time i have been trying to find a unique metal for a wedding band. I'm close to just settling for a Cobalt ring from Boonerings website (assuming he is still active in ring manufacturing) since he seems to do good work... But What i would really like is ring made from Hafnium. I was wondering if anyone had ever seen one, made one, or even heard of one, and why there seems to be none being made? Can they even be done?

Thanks!

William

 

[Ravinmad]

72

Hf

Hafnium

178.49


Atomic Number: 72

Atomic Weight: 178.49

Melting Point: 2506 K (2233°C or 4051°F)

Boiling Point: 4876 K (4603°C or 8317°F)

Density: 13.3 grams per cubic centimeter

Phase at Room Temperature: Solid

Element Classification: Metal

Period Number: 6 Group Number: 4 Group Name: none


What's in a name? From the Latin word for the city of Copenhagen, Hafnia.

Say what? Hafnium is pronounced as HAF-neeem.

History and Uses:

Hafnium was discovered by Dirk Coster, a Danish chemist, and Charles de Hevesy, a Hungarian chemist, in 1923. They used a method known as X-ray spectroscopy to study the arrangement of the outer electrons of atoms in samples of zirconium ore. The electron structure of hafnium had been predicted by Niels Bohr and Coster and Hevesy found a pattern that matched. Hafnium is difficult to separate from zirconium and is present in all of its ores. It is obtained with the same methods used to extract zirconium.

Hafnium is a good absorber of neutrons and is used in the control rods of nuclear reactors. Hafnium is also used in vacuum tubes as a getter, a material that combines with and removes trace gases from vacuum tubes. Hafnium has been used as an alloying agent in iron, titanium, niobium and other metals.

Melting near 3890°C, hafnium carbide (HfC) has the highest melting point of any known two-element compound. Hafnium nitride (HfN) also has a high melting point, around 3305°C. Other hafnium compounds include: hafnium chloride (HfCl4), hafnium fluoride (HfF4) and hafnium oxide (HfO2).

http://education.jlab.org/itselemental/ele072.html

melting piont is likely one issue, demand and workability are others based upon what I can read up on it. Ask Boone Rings if they could or can do something with it, it cant hurt.

 

[Mastercraftsman]

Yes have played around with various metals and have some stratergy for fabricating settings and simple wedding bands I will be happy to help you mine have Blue garnets in the settings, I certainly understand why you desire such exotic material i do not know of any other person who has been sucsessful in fabricating in this metal as the melting point is way above platinum.