IRIDIUM METAL NANO POWDER

IRIDIUM

•  Iridium is the second densest of all elements. With a melting temperature of 2446°C (4435°F), it is exceeded only by the refractory group metals.

•  It exhibits excellent high temperature properties and mechanical strength, being used in certain applications, unprotected, in air at temperatures exceeding 2000°C (3632°F). At these temperatures it also shows outstanding resistance to a variety of salts and oxides. It is unaffected by common mineral acids and aqua regia.

•  This makes iridium an obvious choice for a whole range of high temperature applications. Its high degree of stiffness and resistance to deformation render its fabrication into complex components difficult.

/Data from Johnson Mattney Iridium Brochure/

MAIN PRODUCERS OF IRIDIUM PRODUCTS

•  Johnson Mattney, US&UK (noble.mattney.com) •  Heraeus, Germany (www.heraeus.com) •  Ekaterinburg non-ferrous metals processing plant, Russia (www.ez-ocm.ru)

MAIN IRIDIUM APPLICATIONS AND DEMAND

Applications include: crucibles, catalysts, ignition fires, toxic gas sensors, rocket nozzles etc.

IRIDIUM PRODUCTS ON EXAMPLE OF JOHNSON MATTNEY

All Johnson Matthey iridium products are produced using starting material of a minimum of 99.8% purity. Wire •  Diameter from 4.0mm to 0.127mm

Sheet •  Up to 15kg single ingot processing. Width up to

450mm. Thickness from 6mm to 0.1mm

Discs •  A variety of dimensions are available. Specialised

tooling enables discs to be produced to a flatness of ± 0.025mm.

Tubes •  Tubes are normally produced with a seam weld, the

weld penetration is not removed from the internal bore. For smaller diameters, the tube can be machined from rod to produce a seamless product. The maximum length in this case is approximately 150mm.

Crucibles •  Standard sizes available (30cc to > 6000cc) as well

as wall thickness from 4.0mm to below 1.0mm. Standard crucibles are supplied flat-bottomed, with an edge radius of ~6.0mm. Seam welds are dressed on the inside of the crucible but not on the outside.

TRADITIONAL MANUFACTURING FROM IRIDIUM ON EXAMPLE OF CRUCIBLES

1. Induction oxidizing melting in periclase crucible. 2. Processing in digester. 3. Forging of ingot. 4. Electron beam vacuum melting in horizontal crystallizer pan. 5. Crucibleless electron beam zone melting – monocrystal growing. 6. Forging (2000-1100°C), production of billet. 7. Boiling in chlorazotic acid. 8. Rolling (1000-800°C), production of plates. 9. Boiling in chlorazotic acid. 10. Production of crucible shell (600-800°C). 11. Boiling in chlorohydric acid. 12. Welding of shell and welding ofbottom to it. 13. Annealing of crucible at 1100°C. 14. Polishing. *Johnson Mattney has speciality melting equipment, hot rolling and drawing plant, and thermal deposition systems in their facilities at Royston near Cambridge in the UK, and at West Chester near Philadelphia in the USA, to make products under this technology.

THE CHALLENGE

Iridium products have welding seam. TASK: to create products without welding seam

THE CHALLENGE COMPLETED

Tube by traditional technologies with welding seam

Tube by innovative technology with no welding

COMPARISION OF TECHNOLOGIES

TRADITIONAL INNOVATIVE 1. Induction oxidizing melting in periclase crucible. 2. Processing in digester. 3. Forging of ingot. 4. Electron beam vacuum melting in horizontal crystallizer pan. 5. Crucibleless electron beam zone melting – monocrystal growing. 6. Forging (2000-1100°C), production of billet. 7. Boiling in chlorazotic acid. 8. Rolling (1000-800°C), production of plates. 9. Boiling in chlorazotic acid. 10. Production of crucible shell (600-800°C). 11. Boiling in chlorohydric acid. 12. Welding of shell and welding of bottom 13. Annealing of crucible at 1100°C. 14. Polishing.

OUTPUT OF METAL IN READY PRODUCT – 60-70%

1.  Production of iridium metal nanopowder;

2.  Pressing of nanopowder at 25ºC;

3.  Thermic treatment at 1000-1300 ºC;

4.  Polishing

OUTPUT OF METAL IN READY PRODUCT – more than 95%

METAL IRIDIUM NANO POWDER

Comparision of 5 grams of metal and 5 grams of nanopowder

Description of nanopowder

•  Highly pure iridium nanopowder consists of black metal nano particles with chemical purity at least 99,995% and dimensions 20-70 nanometers with specific surface range from 3 to 7 m²/g and bulk density 0,4 – 0,9 g/сm³. It is thermally resistant up to 200°C in air, and it is not pyrophoric.

•  Formula - Ir CAS Number - 7439-88-5 Pubchem SID - 24852586 Molecular Weight - 192.22 Particles sizes - 20-70 nm

IRIDIUM METAL NANO POWDER PURITY

CHEMICAL PURITY OF NANO POWDER - 99,998%

THERMAL TESTING OF NANO POWDER

1000°C 1300°C 2000°C

SAMPLES OF TEST PRODUCTS

COMPETITIVE ADVANTAGES

•  The iridum metal nano powder is not pyrophoric, not explosive and not inflammable.

Thеsе features provides a safe working environment and makes iridium nano powder high-tech and competitive product on the international markets.

•  In comparison to other iridium industrial powders, the offered MNPI is significantly better with regard to chemical purity, 5-10 times better with regard to bulk density characterizing flow rate of mass unit per volume unit and 20-40 times better with regard to specific surface characterizing catalytic activity.

•  Unique degree of purification and nano-dispersion ensuring combination of high strength and super ductility at particular temperature simplify the traditional process of iridium products manufacturing and provide capability to obtain new products with single- crystal structure characterized with increased chemical and corrosion resistance.

PERSPECTIVES OF NEW TECHNOLOGY

Johnson Mattney products and technologies used in the automotive industry •  Emissions control: Autocatalysts (Emissions control from

cars and light duty vehicles) and Heavy duty diesel catalysts and systems (Emission control from heavy duty diesel vehicles)

•  Ignition: Spark plug tips and engine sensors (Fabricated precious metal alloys for ignition applications)

•  Vehicle power: Fuel cells (Fuel cell catalysts and components)

Our addition: •  Durable and heat-resistant surfaces coated with iridium

metal nano powder •  New metallic alloys with iridium nano powder

IRIDIUM METAL NANO POWDER

NEW CHALLENGE.