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Showing posts with label metals. Show all posts
Showing posts with label metals. Show all posts

Wednesday, April 29, 2009

What is Niobium?


Electric Rainbow Earrings at You've Got Maille

This weekend I sold a pair of these earrings online and a pair at the Renaissance faire. Last night, as I worked on an argentium and niobium choker, I decided I needed to talk about niobium.

It's my favorite metal. It's cooperative to work with (it won't break your hands like steel or titanium and it closes seamlessly without an argument). It anodizes in glimmering colors no photo I seem to be able to take does justice. Unanodized, it's a grey-silver color with just a touch of a glimmer that gives no hint of the iridescent rainbow it can become.

This is a relatively "new" metal, having been discovered in 1801. It's used in alloy with titanium and steel for lots of technology applications, including the space program.

The glory of niobium is the color. When it takes color, it takes it in a subtle range. I get a packet of multicolor rings and for some projects sort them into colors, and often there's no clear division - for example the bronze has purple highlights and the violet has gorgeous blue. As a result, you can get a beautiful gradient effect when weaving it into chainmaille.

The other tremendous benefit is that the stuff is as hypoallergenic as you can get. While a few people react to niobium, it's extremely rare. As a result it's used extensively in body piercings. So if you've got sensitive ears and you haven't tried niobium hooks, try them. A search on Etsy should turn up several. Niobum and titanium alloys, unlike surgical steel, should be free of nickel (which causes most metal reactions).

As I said, a search on Etsy should turn up quite a bit of niobium, but if you're a jewelry maker you're probably wondering where to get this great stuff. The suppliers I know of include The Ring Lord, Blue Buddha Boutique, and Spiderchain, although I cannot attest to their niobium because I haven't bought it from anyone. I bought first from someone on eBay but since the rings were "snipped" niobium wire, they had rough edges that weren't colored.

Every bit of niobium I buy now comes from C&T Designs, and I'll tell you why. One, customer service is the best. Secondly, Curt takes great care in winding, cutting and anodizing his wire, so you end up with very few "trash" rings (unlike TRL; I haven't bought the niobum but sometimes I'm disgusted with how many aluminum rings I have to throw away). The ends are carefully anodized and the color is gorgeous. Third, as far as I know, C&T is the only place you can get "rainbow" niobium rings, where each ring has 2-3 colors on it, and this makes for some beautiful stuff, and even prettier ear hooks. And finally, he does custom rings and custom anodizing so pretty much, if you can imagine it and he can manage it, he's up for it. Prices are really reasonable, too.


Niobium Ear Wire Selection from C&T Designs (rainbow bottom center)

I really love the mostly circular shape, they hang very nicely.

People seem to like "cheap" earrings so I'm still using surgical steel wires. If I had my choice, though, I'd go to all niobium and to eliminate reactions, although sometimes they don't look right on silver earrings. Also, if anyone knows of a good supplier of niobium or titanium posts with loops, I'd love to hear about it. I've found a few here and there but no reliable supplier.

Friday, July 25, 2008

What I'm Working on


I keep running out of rings :) This past Saturday Brandon and I made a choker sort of similar to Rhiannon (see my shop) in bright aluminum with a red inlay diamond, a celtic cross pendant, and red Swarovski beads along the bottom. It came out really pretty and was made as a birthday present for our friend Mary Ann. I wish I'd had time to get a picture of it but I didn't... maybe I can bug her to get one of her with it on, with her gorgeous red Renaissance costume dress. However, as a result I'm out of 3/16" BA rings and can't do the Dragonscale belt I planned on... back to TRL.

I bought the pretty ceramic leaf pendant above from Etsian Hannahfaerie a month or so ago (go visit... her work is beautiful). I originally intended to mix this with titanium and crystal, but I really didn't care for working with titanium, and the aluminum green was closer to the shade I wanted than the niobium was (and cheaper!). And the 4-in-1 drape I intended didn't hang the way I wanted it to, so I went with Japanese, with copper linking rings and a Swarovski leaf (sheesh those are expensive). The leaf-ish shaped unit pictured above will be duplicated on the other side of Hannah's pendant and probably hung from a copper chain, but... is it too much? The more I look at it the more I think it sort of overpowers the pretty ceramic. Maybe it'd be better if I did the maille in all green. Love to hear innocent bystanders' opinion on this so please comment if you don't mind ;) If this turns out cool I will probably submit it to Belle Armoire.

Beyond that, I've gone a little hog wild buying cabochons from a really cool supplier, some of which I will resell and some of which I will use to practice wire wrapping. Stay tuned for pics of that. Seems like I haven't had much time for crafting the past few days, and the near future isn't looking too good either. I think I will steal a few hours Monday.

Saturday, June 28, 2008

Base Materials

[Photo of The Ring Lord's anodized aluminum colors]

I'm just going to review a couple of base metal materials that I've worked with, how they are to work with, and how they wear as far as long-term life. There are several that I have not worked with, including precious metals, and I suppose I'll get around to them later.

Bright Aluminum
When I'm done working with BA my fingers are black. As a result, I haven't used it for jewelry at all, because I can't imagine it wouldn't do the same to your neck if you wore it as a choker. It washes off easily enough, but a blackened band around your neck doesn't exactly make for oohs and aahs. What I have and will use it for is anything that doesn't touch a lot of skin:
  • dangly earrings
  • belts
  • headdresses
  • decorative items, bags, etc.
Since aluminum is the most plentiful metal on the earth (in fact the most plentiful element after oxygen and silicon), BA is cheap and therefore terrific to work with for learning new weaves. It is also light weight (one third the weight of steel), so it's great for costume maille shirts, coifs, etc. It's not difficult to work with in terms of opening and closing rings at all. TRL claims that there's "little to no noticeable ruboff" from it. I may have to test this. Bonus: it doesn't corrode.

Anodized Aluminum
I love the stuff. No, the colors aren't as vibrant or metallic as niobium, but it's easier to work with, much less expensive, and I actually like some of the colors better (green being an example).
Anodizing apparently triples the price of aluminum, at least at TRL. It's worth it (and still no more expensive than copper). I especially love working with their black, which has a silky finish on it.
I have no ruboff on my fingers when working with it, which I assume means it won't rub off on the wearer, either. There is only one drawback to AA as far as I can tell: how durable is the finish? It can't be cleaned with ultrasonic or harsh chemical cleaners, although I'm not sure how much cleaning it would need since it won't oxidize or corrode. I intend to test the longevity of the anodized finish, as well, by making and using a keychain out of the stuff. More info on that to come.
I have had to throw out a few rings because my pliers popped off a ring and damaged the finish, but I'm using bare pliers (no tool dip or masking tape). Planning on trying out the tool dip.
Verdict: might be my favorite base metal for the cost.

Oh, by the way, check out this nifty studio doing a variety of jewelry and seriously cool mobiles out of AA: HSU Studios

Copper
It's supposed to help arthritis, wearing copper jewelry. There's no scientific evidence for this, but hey, it can't hurt, can it?
Copper's major drawback is the fact that it oxidizes quickly. You can tell an old penny from a new penny instantly. Some maille artists use this to their advantage and mix various-aged coppers in the same piece. It looks cool, but will they all look the same eventually?
Copper can oxidize by just darkening, or greening. It will turn some people's skin green, depending on body chemistry.
Since I like to mix metals (copper and some colors of AA are so pretty together), I am conducting an experiment: I dropped BA, AA, and copper rings into a mixture of white vinegar and salt, which I have seen recommended for cleaning copper, and another with lemon juice. Stay tuned for the results. What I am after is something that will clean copper without destroying the anodized finish on the aluminum. Preliminary investigation makes me think it's gonna eat the anodized layer. A rock tumbler will also polish up your copper, but that definitely will eat the aluminum's color. I'm starting to think my mixed metal pieces are going to have to be disassembled for cleaning. Ick.
Copper is, for the record, very easy to work with as far as malleability.



Steel
I haven't worked with it yet. You've got options for galvanized steel (affectionately known as "galvy"), stainless, or mild steel. Stainless shouldn't rust, so it may be a nice option for jewelry. "Mild" steel is meant to look "medieval", and it will rust. Quickly, I think, especially exposed to moisture or in this humid Tennessee air. Galvy has a zinc surface layer that will keep it from rusting, but it has a dull finish I don't care much for. More experimentation needed here, as well.

Anodized Niobium
I'm in love with this metal. No pictures do it justice. It anodizes in gorgeous metallic, almost iridescent hues. It's hypoallergenic. It's easy to work with (except, I think maybe, for cutting your own rings, which I haven't tried). Once again the only drawback is the longevity of the anodized layer and propensity to scratches. I'll need to wear it more to talk about this stuff.

Anodized Titanium
Doubt I'll be buying much more of this, though I may try a different supplier. Titanium is stiff and hard to work with, the cuts were not flush (I assume because it is so very difficult to cut), and it's hard to make the rings close back the way you want them to because of its "memory." The plus side is that it anodizes in really pretty muted hues.

Bronze, Brass, Silver and Gold, Inconel, Enameled Copper
Haven't worked with any of these in chainmaille, so stay tuned. I have used some brass findings, and EC wire (impression: lacks strength because of the enamel coating). Since I want to play with Vintaj products a bit, I may make some brass things to match them. And I'm considering winding my own silver rings to save a few dollars. Stay tuned for part 2: Precious Materials.