CoIr alloys

[michelia]

I am looking for informations about CoIr alloys.
Who can tell me about crystal structure, lattice parameters of CoIr alloy?
Please share me some references about this material.
Thanks! :!!)

[Astronuc]

Try this -

Atomic Diffusion and Phase Equilibria at the Interfaces of the CoAl/Ir Multilayer on Nb5Si3&ndashBase Alloys [pp. 591-600] (http://doc.tms.org/ezMerchant/home.nsf/AutoFrameset?OpenAgent&url=http://doc.tms.org/servlet/ProductCatalog?category=MMTA+2005+March)

Are you interested in strictly the binary Ir,Co system or more generally other systems, e.g. B2-(Ir, Co)Al ?

[light_bulb]

wow astronuc you really pinned down that question :tongue:

btw i remember using this software called 'diamond' that would let you look at the structure of molecules of minerals, twas pretty cool.

edit: iron and copper

just wondering what will you do once you have the structure of the alloy?

[Astronuc]

The Naval Research Lab has a website on crystal structures. I didn't readily find Ir-Co. I thought it might be an intermetallic, but I have seen references to a solid (substitutional) solution.

For reference -

http://cst-www.nrl.navy.mil/lattice/struk/b2.html

http://cst-www.nrl.navy.mil/lattice/struk/IrV.html

[michelia]

Thanks!
I have found that CoIr has hcp crystallography with:
Z 2
a 0.2602 nm
b 0.2602 nm
c 0.4183 nm
a 90 °
b 90 °
g 120 °
Cell volume 0.02453 nm-3
a/b 1.000
b/c 0.622
c/a 1.608
See here (https://crystdb.nims.go.jp/cgi-bin/lpf/W06-P02.pl?ID00=ID01&ID00VALUE=Co-Ir&ID03=ANY&ID05=XXXXXX&ID04=&ID06=&ID07=XXXXXX&SITEM1=XXXXXX&OPER1=OPR01&VALUE1=&SITEM2=XXXXXX&OPER2=OPR01&VALUE2=&SITEM3=XXXXXX&OPER3=OPR01&VALUE3=&S1=on&SIMG=on&SIMG1=on&SIMG2=on&S2=on&MIN=on&P1=on&P1D0=on&P1E0=on&P3=on&P3B0=on&P3C0=on&P3E0=on&P3F1=on&P3H1=on&P3K0=on&P3L0=on&P3M0=on&P3Q0=on&P4=on&P4A0=on&P4B1=on&P4D1=on&P4E1=on&P4H0=on&P4N1=on&P4Q0=on&P4R0=on&P5=on&P5C0=on&P5D1=on&P5E0=on&P5H0=on&P5I1=on&P5M0=on&P5N0=on&P5O1=on&P5R1=on&P5S1=on&P5Y0=on&P6=on&P6B0=on&P6C0=on&P6D0=on&P6E0=on&P6F0=on&P6J0=on&P6K0=on&P6O0=on&P7=on&P7B0=on&P7C0=on&P7G0=on&P8=on&P8A0=on&P8B0=on&P8C1=on&P8D0=on&P8F0=on&P8J1=on&P8L0=on&P8N0=on&P8P0=on&P8Q0=on&P8R0=on&P8S0=on&P8T0=on&P8U0=on&P9=on&P9A0=on&P9B0=on&P9C1=on&P9D0=on&P9H0=on&P9I0=on&P9K0=on&P9L0=on&P9M0=on&P9N0=on&sub1.x=0&sub1.y=0)

[Astronuc]

The hcp would be consistent with a solid solution of Ir in Co, which is hcp (Space group: P63/mmc ), whereas Ir is ccp.

http://www.webelements.com/webelements/elements/text/Co/xtal.html
http://www.webelements.com/webelements/elements/text/Ir/xtal.html