|
|
| Sprayable
Nanostructured Alumina / Titania S2613P Nanox™ Powder
|
Thermal
Spray Grade Plasma Densified
|
Alumina/Titania is a ceramic composite material used
as a wear resistant coating for machine components.
Nanox™ S2613P feedstock powder is agglomerated nanoparticles
with high density and flowability and an average diameter of 30 µm. |
|
Morphology
SEM micrograph typical of Nanox™ S2613P feedstock powder showing
spherical geometry with high flowability.
|
|
| Coating
Microstructure
Cross sectional
SEM view of a typical dense ceramic coating produced by a Metco
plasma gun using Nanox™ S2613P feedstock powder. Pores (dark
spots) occupy only 2 - 5 % volume.
|
|
| |
 |
[U.S.
Patent Nos. 6,025,034 / 6,162,530 / 6,277,448 / 6,277,774
/ 6,287,714]
Year 2001 R&D 100 Award Winner
|
|
|
| Properties
of NanoxTM S2613P Powder
| Al2O3
: TiO2wt ratio |
87
: 13 |
| CeO2
content, wt % |
6
- 8 % |
| ZrO2
content, wt % |
8
- 10 % |
| powder
grain size (ave.) |
50
- 500 nm |
| agglomerated
powder size (ave.) |
30
µm |
| tap
density |
2.0
g/cm3 |
• 1 nanometer
(nm) = 10 -9 meter (m)
• Nanoscale Materials for the Global Infrastructure™
|
|
Wear
Characteristics
SEM studies of wear surfaces reveal a morphology difference between
coatings sprayed with conventional versus nanostructured alumina/titania.
The wear tracks on conventional coatings are rough (grooves, deformation
and microfracture), whereas the wear surfaces on nanostructured alumina/titania
coatings are relatively smooth (no grooves, deformation or microfracture).
Wear resistance is related to toughness, microhardness, and microstructure.
Toughness of nanostructured alumina/titania improves the wear resistance
of the coatings. Full spray specifications are available through Technical
Applications Bulletin No. S2613P.01.A.\ |
|
SEM
micrograph of worn surface typical of conventional alumina/titania coating.
Note: large "plate like" pieces were removed by wear resulting
in grain "pull-out." |
SEM micrograph of worn
surface typical of nanostructured alumina/titania coating made from Nanox™
S2613P feedstock. Smaller pieces were removed resulting in polishing of
the coating surface. |
|
|
| The
information and recommendations contained in this publication are based
upon data collected by Inframat® Corporation and believed to be correct.
However, no guarantee or warranty of any kind, expressed or implied, is
made with respect to the information contained herein, and Inframat®
Corporation assumes no responsibility for the results of the use of these
products and processes described herein. No statements or recommendations
made herein are to be construed as inducements to infringe any relevant patent, now or hereafter
in existence.
|
|
|
