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 Oct 16 2008, 02:59 AM
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Hi, Great idea for a sub-forum  The thought popped up in a discussion about new BC4's some time ago. Since ORIS makes a lot of titanium-cased watches, they could give TiN (titanium nitride) coating for some of high-end watches (or even mid-range) a shot  . Given the properties of TiN it would make a superb coating for Ti cases - hard, inert, scratch-resistant, variety of colors possible. It is also used widely right now, so it is not very expensive tech either (not talking about TiN ceramics here, just PVD/CVD techniques). Note: The topic heading got changed from TiN to Tin... which is a completely different thing  Not my fault... if anyone with admin priv's comes along, could they please fix it? 
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They say, "Evil prevails when good men fail to act." What they ought to say is, "Evil prevails."
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Oct 21 2008, 01:36 PM
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QUOTE (ZeteticE @ Oct 16 2008, 02:59 PM)  The thought popped up in a discussion about new BC4's some time ago. Since ORIS makes a lot of titanium-cased watches, they could give TiN (titanium nitride) coating for some of high-end watches (or even mid-range) a shot . Given the properties of TiN it would make a superb coating for Ti cases - hard, inert, scratch-resistant, variety of colors possible. It is also used widely right now, so it is not very expensive tech either (not talking about TiN ceramics here, just PVD/CVD techniques). Great idea, Vladimir! Thanks for the input! I think that ORIS watches can feature this kind of coating in near future. And its a good way to increase the sales of Ti-watches as well. Actually, I love metal and rose gold surfaces, brushed or polished in some combinations. Does the technology of the coating can save a natural metal look? Maybe there are some examples you can share. I would like to see them in person.  Alex
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Imagination is more important than knowledge. // Albert Einstein
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Oct 22 2008, 03:29 AM
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Hello, Alexander. Sadly I can't put up any in-house pictures of TiN coatings... Few deposition chaps I know don't deal with that particular thing at all  . And when it comes to metallurgy, my interest is purely "hobbyist" one. Here is off-the-net picture of what neat (pure TiN) thin-film TiN can look like on metal:  I'm 99.5% certain that TiN coating can't be brushed well... It's very hard and resistant - I don't think the brushing will be uniform even if achieved. It does polish very well - makes it look like gold, but much, much harder than any gold alloy. Thicker films can be made look brushed with different deposition technique, as "grain" and color are dependent on additives (other metal carbides/nitrides), temperature, pressure of inert gas and etc. You can get gold, grey-black, blue colors with variations of material and temperature.
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They say, "Evil prevails when good men fail to act." What they ought to say is, "Evil prevails."
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Oct 22 2008, 11:18 AM
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QUOTE (ZeteticE @ Oct 22 2008, 03:29 PM) Hello, Alexander. Sadly I can't put up any in-house pictures of TiN coatings... Few deposition chaps I know don't deal with that particular thing at all . And when it comes to metallurgy, my interest is purely "hobbyist" one. Here is off-the-net picture of what neat (pure TiN) thin-film TiN can look like on metal: Hello, Vladimir! IMHO the pic of these metal parts is a good illustration anyway and looks quite solid.  QUOTE (ZeteticE @ Oct 22 2008, 03:29 PM) I'm 99.5% certain that TiN coating can't be brushed well... It's very hard and resistant - I don't think the brushing will be uniform even if achieved. It does polish very well - makes it look like gold, but much, much harder than any gold alloy. Thicker films can be made look brushed with different deposition technique, as "grain" and color are dependent on additives (other metal carbides/nitrides), temperature, pressure of inert gas and etc. You can get gold, grey-black, blue colors with variations of material and temperature. I'm not sure that we will be able to live without brushed surfaces on Ti-watches!  If seriously - who knows this may lead us to some new decisions here. I have only one more question: does this coating remain hypoallergenic for the user?  Alex
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Imagination is more important than knowledge. // Albert Einstein
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Jun 24 2010, 02:23 PM
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Regarding TiN coatings. There are also several varieties of similar coatings that are even more resiliant like Titanium Aluminum Nitride and carbides and even ceramics. The only problem is that they require a special cleaning process followed by high temperature vapor deposition process to apply them to metal surfaces. The temperatures involved often exceed 300 F. This is not a problem for the tool grade steels steels that don't anneal until 500-800 degrees F. It is usually applied to cutting tool steels like SAE M48, M2 & 4, etc. at one to four micron thickness. The high temperatures required would probably anneal many carbon steels and thereby reduce their durabilability. If the case material is a stainless tool steel the only hurtle would be that the components would have to be coated prior to assembly and detailing. Still a very doable, and good idea! Bill 
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Jun 24 2010, 11:19 PM
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Hey,
Almost all of my Titanium Citizens [radio contr.,BY2000-55E, AS4035-04E & PMV65-2241] have DLC/Ti.C.C. coatings. It can be brushed, poliished and colours can be added.
It's very scratch resistant.
Citizen has his "Duratect" and Seiko uses "Dia-shield" for coatings on the upper level of there watches.
Great stuff.
Cheers , Beuz.
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Hey man , watch the road , watch the road.
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