A kind of preparation method of dispersed oxide nickel aluminum alloy
A nickel-aluminum alloy, oxide technology, applied in solid diffusion coating, metal material coating process, coating and other directions, can solve problems such as poor effect, and achieve the effect of simple process, good coating quality and low cost
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Embodiment approach 1
[0026] Embodiment 1: The preparation method of the dispersed oxide nickel-aluminum alloy of this embodiment is:
[0027] (1) Mix pure aluminum powder (particle size 60 microns, purity 99.8wt%) and yttrium oxide (powder particle size 50 nanometers) at a ratio of 99wt%: 1wt%, then ball mill the mixture (360 rpm, The processing time is 2 hours, and the mixture ball ink adopts the dry method. The mixture is put into a ball mill tank with a diameter of 50mm and a height of 80mm, and filled with ceramic balls with a diameter of 2mm, and the ball mill tank is installed on a planetary ball mill. Carry out ball milling, and after the ball milling, the ultrafine metal oxides are dispersed in the aluminum powder particles; figure 1 shown.
[0028] (2) Ball mill the mixture in step (1) as aluminum donor, NH 4 Cl is used as a penetration aid, and varnish is used as a binder. According to the ratio of aluminum donor: penetration aid: binder is 49wt%: 1wt%: 50wt%, mixed with polyvinyl alco...
Embodiment approach 2
[0031] Embodiment 2: The preparation method of the dispersed oxide nickel-aluminum alloy of this embodiment is:
[0032] (1) Pure aluminum powder (with a particle size of 40 microns and a purity of more than 99.5wt%) and yttrium oxide (Y 2 o 3), the powder particle size is 45 nanometers) mixed according to the ratio of 99.5wt%: 0.5wt%, and then the mixture is ball milled (rotating speed 300 rpm, processing time is 1 hour. The ball ink of the mixture is ball milled by wet method, and the wet method is to use pure Alcohol is completely submerged in the powder for ball milling, and then dried), and the ultrafine metal oxides are dispersed in the aluminum powder particles;
[0033] (2) Ball mill the mixture in step (1) as aluminum donor, NH 4 Cl is used as a penetration aid, and varnish is used as a binder. According to the ratio of aluminum donor: penetration aid: binder is 45wt%: 5wt%: 50wt%, mixed with polyvinyl alcohol solution with a concentration of 15wt% after fully grind...
Embodiment approach 3
[0035] Embodiment 3: The preparation method of the dispersed oxide nickel-aluminum alloy of this embodiment is:
[0036] (1) Pure aluminum powder (with a particle size of 10 microns and a purity of more than 99.5wt%) and hafnium oxide (HfO 2 ) (powder particle size is 100 nanometers) mixed according to the ratio of 95wt%: 5wt%, and then the mixture is ball milled (rotating speed 600 rpm, processing time is 6 hours. The ball ink of the mixture is ball milled by wet method, and the wet method is to use pure ethanol to completely submerge the powder for ball milling, and then dry), and the ultrafine metal oxides are dispersed in the aluminum powder particles;
[0037] (2) Ball mill the mixture in step (1) as aluminum donor, NH 4 Cl is used as a penetration aid, and varnish is used as a binder. According to the ratio of aluminum donor: penetration aid: binder is 30wt%: 4wt%: 66wt%, mixed with polyvinyl alcohol solution with a concentration of 14wt% after fully grinding Mix accor...
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