A kind of fe-cr-ni-ti powder coated honeycomb zta ceramic preform and its preparation and application
A fe-cr-ni-ti, honeycomb technology, applied in ceramic products, applications, other household appliances, etc., can solve the problems of composite interface tearing, ceramic preform size limit, complex process, etc. Metallurgical bond strength, improved interfacial bond characteristics, and the effect of reducing complex processes
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Embodiment 1
[0049] 1) Take Fe, Cr, Ni, Ti powder with a purity of about 99.99%, particle size less than 200 mesh, Fe: 75%, Cr: 10.8%, Ni: 13.3%, Ti: 0.90% by weight, and alloy Chemical treatment, main mechanical alloying parameters: ball diameter: 5mm, ball to material ratio 10:1, speed 400r / min, ball milling time 48h. Usually the whole process of ball milling and powder filling is carried out under the environment of inert gas;
[0050] 2) In a 30mm×20mm×10mm cavity and a through Φ10mm cylindrical mold, add the Fe, Cr, Ni, Ti micropowder and ZTA ceramic particles obtained in step (1), then add water glass, and then add 10~ 12 purpose paraffin, wherein choose Fe, Cr, Ni, Ti mixed micropowder 2.4g, ZTA ceramic particles (ZrO 2 20wt.%, Al 2 o 3 Accounting for 80wt.%) 30g, the amount of water glass is 0.12g, 10-12 mesh paraffin wax particles are added as 0.65g as a pore-forming agent, the four are evenly mixed and processed, and the whole process is carried out in a protective atmosphere....
Embodiment 2
[0056] 1) Take Fe, Cr, Ni, Ti powder with a purity of about 99.99%, particle size less than 200 mesh, Fe: 78%, Cr: 10.0%, Ni: 11.0%, Ti: 1.0% by weight, and alloy Chemical treatment, main mechanical alloying parameters: ball diameter: 5mm, ball to material ratio 10:1, speed 400r / min, ball milling time 48h. Usually the whole process of ball milling and powder filling is carried out under the environment of inert gas;
[0057] 2) In a 30mm×20mm×10mm cavity and a through Φ10mm cylindrical mold, first add the Fe, Cr, Ni, Ti micropowder and ZTA ceramic particles obtained in step (1), then add water glass, and then add 10 ~12 purpose paraffin wax, wherein choose Fe, Cr, Ni, Ti mixed micropowder 2.4g, ZTA ceramic particles (ZrO 2 20wt.%, Al 2 o 3 Accounting for 80wt.%) 30g, the amount of water glass is 0.12g, 0.65g of 10-12 mesh paraffin particles are added as a pore-forming agent, and the four are uniformly mixed and processed, and the whole process is carried out in a protective...
Embodiment 3
[0062] 1) Take Fe, Cr, Ni, Ti powder with a purity of about 99.99%, particle size less than 200 mesh, Fe: 78.3%, Cr: 10%, Ni: 10.5%, Ti: 1.2% by weight, and mix the powder for alloying Chemical treatment, main mechanical alloying parameters: ball diameter: 5mm, ball to material ratio 10:1, speed 400r / min, ball milling time 48h. Usually the whole process of ball milling and powder filling is carried out under the environment of inert gas;
[0063] 2) In a 30mm×20mm×10mm cavity and a through Φ10mm cylindrical mold, add the Fe, Cr, Ni, Ti micropowder and ZTA ceramic particles obtained in step (1), then add water glass, and then add 10~ 12 purpose paraffin, wherein choose Fe, Cr, Ni, Ti mixed micropowder 2.4g, ZTA ceramic particles (ZrO 2 20wt.%, Al 2 o 3 Accounting for 80wt.%) 30g, the amount of water glass is 0.12g, 0.65g of 10-12 mesh paraffin particles are added as a pore-forming agent, the four are uniformly mixed, and the whole process is carried out in a protective atmos...
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