High-temperature-resistant flaky iron-cobalt-germanium wave absorption material and preparation method and application thereof
A wave-absorbing material and high-temperature-resistant technology, which is applied in the field of wave-absorbing materials, can solve the problems of high hardness of FeCo alloy, thick wave-absorbing coating, and difficult to break, and achieve high usable temperature, low absorption frequency, Effect of High Curie Temperature
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Embodiment 1
[0043] Ge-doped flaky Fe in this example 6.5 co 3.5 Ge x (x=0.2), its preparation method comprises the following steps:
[0044] (1) Using an electronic balance with an accuracy of 0.1mg, the stoichiometric ratio is 6.5:3.5:0.2, and weigh 3.1091g iron particles (99.9% purity), 1.7665g cobalt flakes (99.9% purity) and 0.1244g germanium Granules (purity: 99.9%), the error is within 0.5mg, as the raw material.
[0045] (2) Put the raw materials in step (1) into the vacuum electric arc furnace, and put the titanium ingot in the center at the same time, and extract it to 7×10 -4 Vacuum degree below Pa. Then, high-purity argon is introduced as a protective gas to smelt titanium ingots and fully absorb the possible residual oxygen in the furnace. Afterwards, the alloy is smelted. In order to ensure uniform composition, each alloy needs to be turned over after melting and cooling. This is repeated 5 times, and each smelting lasts for about 1 minute. After all is completed, wait ...
Embodiment 2
[0049] (1) Using an electronic balance with an accuracy of 0.1mg, the stoichiometric ratio is 6.5:3.5:0.4, and weigh 3.0337g iron pellets (99.9% purity), 1.77236g cobalt flakes (99.9% purity) and 0.2427g germanium Granules (purity: 99.9%), the error is within 0.5mg, as the raw material.
[0050] (2) Put the raw materials in step (1) into the vacuum electric arc furnace, and put the titanium ingot in the center at the same time, and extract it to 7×10 -4 Vacuum degree below Pa. Then, high-purity argon is introduced as a protective gas to smelt titanium ingots and fully absorb the possible residual oxygen in the furnace. Afterwards, the alloy is smelted. In order to ensure uniform composition, each alloy needs to be turned over after melting and cooling. This is repeated 5 times, and each smelting lasts for about 1 minute. After all is completed, wait until the bulk alloy is completely cooled, fill with air, open the furnace door, and take out the bulk alloy.
[0051] (3) Put...
Embodiment 3
[0054] (1) Using an electronic balance with an accuracy of 0.1mg, the stoichiometric ratio is 6.5:3.5:0.6, and weigh 2.9618g iron pellets (99.9% purity), 1.6828g cobalt flakes (99.9% purity) and 0.3554g germanium Granules (purity: 99.9%), the error is within 0.5mg, as the raw material.
[0055] (2) Put the raw materials in step (1) into the vacuum electric arc furnace, and put the titanium ingot in the center at the same time, and extract it to 7×10 -4 Vacuum degree below Pa. Then, high-purity argon is introduced as a protective gas to smelt titanium ingots and fully absorb the possible residual oxygen in the furnace. Afterwards, the alloy is smelted. In order to ensure uniform composition, each alloy needs to be turned over after melting and cooling. This is repeated 5 times, and each smelting lasts for about 1 minute. After all is completed, wait until the bulk alloy is completely cooled, fill with air, open the furnace door, and take out the bulk alloy.
[0056] (3) Put ...
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