Listing ID #6590265
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Contact SupplierProduct Name : CrALC MAX Phase Powder
Pack Size: 10 gram, 50gram, 100gam ,250gram, 500 gram
Product Name |
CrALC MAX Phase Powder |
Cas No |
12179-41-8 |
Appreance |
Gray to Black |
Purity |
≥98% |
APS |
40-50µm |
Formula |
Cr2AlC |
Product no. |
SCM-MX-106/22 |
Description
The autonomous crack-healing capability of Cr2AlC MAX phase ceramic by surface oxidation at elevated temperatures has a huge potential for high temperature structural and protective coating applications. In this work we use time-lapse X-ray computed tomography (CT) to track the fine details of local crack filling phenomena in 3 dimensions (3D) with time. The maximum crack width that could be fully healed upon exposure to 1200 °C in air is 4.8 μm in 4 h and 10 μm after 12 h. Furthermore, during healing Cr7C3 phase is observed beneath the dense Al2O3 layer (average thickness of 1 μm on each crack surface) when the crack width exceeds 2 μm. The 3D image sequences indicated that the rate of healing is essentially independent of position along, or across, the crack faces. The crack healing kinetics of Cr2AlC at 1200 °C broadly follows a parabolic rate law with a rate constant of 4.6 × 10⁻⁴ μm² s⁻¹. The microstructure, composition and thickness of the oxide scale in the healed crack area are characterized via post mortem SEM-EDS measurements and confirm the formation of an initial dense alumina layer on top of which a more porous layer forms.
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Related Information :-
Storage Conditions:
Airtight Sealed, Avoid light and keep dry at room temperature.
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