Metal finishing Q&As since 1989

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Forming titanium nitrate on titanium effect electrical resistance

We are thinking about protecting titanium by nitration forming a titanium nitride coating of 4-6 micrometers. Will this effect this effect the electrical resistance.
We want to contact the titanium plate and want a low resistance.

Eliot Gerber
researcher - Walnut Creek, California, USA
2006

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Titanium nitride has a lower electrical resistivity than titanium.

Jim Treglio - scwineryreview.com
PVD Consultant & Wine Lover - San Diego,
California
2006

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Jim, are you sure? Perhaps you mean a lower electrical conductivity, equivalent to a higher electrical resistivity?

Bill Reynolds [deceased]
consultant metallurgist - Ballarat, Victoria, Australia
We sadly relate the news that Bill passed away on Jan. 29, 2010.
2006

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The resistivity of titanium is around 55 micro-ohm-cm; titanium nitride coatings are around 25 micro-ohm-cm. Bottom line: titanium is not a good electrical conductor.

Jim Treglio - scwineryreview.com
PVD Consultant & Wine Lover - San Diego,
California
2006

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2006

Dear Jim sir,

here I have one doubt can you explain please.

actually Ti is a metal .so it is good conductors of electricity, whereas TiN is ceramic film so it needs to have almost lower electrical conductivity. Because metals are good conductors of electricity as well as heat.here I am thinking that Ti will have lower electrical resistivity . can you explain please.

regards,

Angadala, PVD coatings engineer
- Pune, Maharastra, India

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1. Ceramic materials with covalent bonding are poor electrical conductors. These include most oxides and AlN. TiN and the other transition metal nitrides are primarily metallically bonded. Ionically bonded ceramics (salts) are also good electrical conductors.

2. Ti is a very bad electrical conductor, as metals go.

Jim Treglio - scwineryreview.com
PVD Consultant & Wine Lover - San Diego,
California
2006