On Jun 5, 5:01*pm, HK wrote:
Eisboch wrote:

"HK" wrote in message
...

Interestingly, the gold-tone coating on the spools of my Penn spinning
reels does not seem to wear off nearly as easily as the coating on the
Shimanos. It's strictly ornamental, though. Both brands of reels work
well for me...

If it is TiN and not electroplated, and it was done properly, you will
find it damn near impossible to wear off.

Titanium Nitride can look just like gold electroplating. *It can also be
adjusted to different "hues".
Several auto manufacturers with the fancy gold hood ornaments and side
badges use plastic or zinc parts that have a vacuum deposited base
coating and then a reactive titanium nitride finish top coating.

Each manufacturer has a different specification in terms of the gold
color, hue, and other color spectrum requirements, etc. which are
controlled by different process parameters including voltage, pressure
and gas ratio mixtures. * The "gold" tipped drill bits aren't designed
to be pretty, so they have a dull, but very hard coating. * The hood
ornament or badge on a Caddy may be zinc or plastic, but the TiN coating
is bright, shiny gold with a lot of "depth".

Same with many of the modern sports trophy manufacturers. *They are
shifting to vacuum deposited TiN instead of electroplating or electro
less nickel plating. *The older plating technologies generate toxic
waste that needs to be disposed of. * Vacuum deposited coatings are
"green", environmentally.

Same with junk jewelry.

It's an interesting technology.

Eisboch

I don't have any idea what is being used to plate the reels in gold
tone. As I said, the plating is just decoration. The reels don't rust
when it wears off. The frames are aluminum. I wash and dry the reels
after every use, so I haven't had any problems with corrosion, either.
I'd pay $25 to have a reel "redone," but it's not a vital refurb.

TiN is used as a diffusion barrier on Silicon wafers. It is deposited
to a thickness of roughly 50 angstroms forming a truly beautiful dark
purplish color that changes depending on the angle you look at it to
green and then other colors. I have some 300 mm wafers with Tin that
always catch peoples attention for their beauty.

"jim7" wrote in message
...
Wizard of Woodstock wrote:
On Fri, 05 Jun 2009 08:33:12 -0400, jim7 wrote:

Eisboch wrote:
"jim78" wrote in message
...

HK wrote:

Whooosh...that's the sound of what you just explained zooming over my
head.
Not surprised at that.
Eisboch has the ability to whoosh people much more intelligent than
you.

I even whoosh myself sometimes.

Eisboch
If you can't dazzle em with brilliance, baffle em with bull****.

Hell ya...

By the way, what are you going to do when you get down to just J? :)

I'm sure I'll think of something.


Maybe Greek alphabet letters after your name? 8)

"Frogwatch" wrote in message
...

TiN is used as a diffusion barrier on Silicon wafers. It is deposited
to a thickness of roughly 50 angstroms forming a truly beautiful dark
purplish color that changes depending on the angle you look at it to
green and then other colors. I have some 300 mm wafers with Tin that
always catch peoples attention for their beauty.

-----------------------------------------

One of the major pen companies does a similar TiN coating on one of their
pen lines.
I helped the thin film guy tweak the color while the system was being built.

Eisboch

On Fri, 05 Jun 2009 10:33:56 -0400, HK wrote:

You can find it very difficult to measure the hardness of very thin
coatings, but titanium nitride is estimated at Rockwell C 85. It is
coated on to drill bits, steel knife cutting edges, and the titanium
handles on my Buck folding knife. It is yellow in color, and is used
for decoration as well as wear resistance. You can color anodize
aluminum that color, but I don't believe the coating is as abrasion
resistant as the nitride, notwithstanding the fact the all aluminum
has a coating of sapphire, transparent aluminum oxide.

Casady


Interestingly, the gold-tone coating on the spools of my Penn spinning
reels does not seem to wear off nearly as easily as the coating on the
Shimanos. It's strictly ornamental, though. Both brands of reels work
well for me...

The simple explanation is that one is anodized and one is nitrided.

Casady