Amorphous-containing icosahedral quasicrystal hydrogen storage alloy and quenching production method thereof
A technology of icosahedral and hydrogen storage alloys, applied in the field of icosahedral quasicrystal hydrogen storage alloys and their quenching method
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Embodiment 1
[0033] Embodiment 1: the expression that the chemical composition of target alloy forms is (Ti 0.6 Zr 0.4 ) 60 (Ni 0.9 PD 0.1 ) 40 . The preparation method of the alloy is as follows: the selected raw material metal titanium ingot, zirconium ingot, nickel rod and palladium block, the purity expressed by weight percentage is 99.9%; these 4 kinds of metal raw materials are respectively put into a non-consumable vacuum arc melting furnace Internal remelting, the process conditions of the remelting are: keep the vacuum degree in the furnace at 10 -2 Pa; the metal raw material melted into a liquid state by an electric arc maintains its liquid state for 1 minute; then it is naturally cooled and released from the furnace;
[0034] The remelted metal raw material is used as the charge of the target alloy, according to the target alloy (Ti 0.6 Zr 0.4 ) 60 (Ni 0.9 PD 0.1 ) 40 The proportioning ratio is used for batching; the prepared charge is put into a non-consumable vacuu...
Embodiment 2
[0041] Embodiment 2: 1. the expression of the chemical composition of target alloy is (Ti 0.6 Zr 0.4 ) 60 (Ni 0.8 co 0.2 ) 40 . 2. Titanium ingots, zirconium ingots, nickel rods and cobalt blocks whose purity is 99.9% expressed by weight percentage are adopted; 3. (Ti 0.6 Zr 0.4 ) 60 (Ni 0.8 co 0.2 ) 40 The melting time before arc melting is 1 minute, and the melting time after turning is 3 minutes; ④The linear velocity of the copper roller in the quenching condition is 21m / s; the injection pressure of the melt is 0.1MPa; the average thickness of the alloy is 100μm Thin strip; Other conditions and preparation method are all identical with embodiment 1, obtain (Ti 0.6 Zr 0.4 ) 60 (Ni 0.8 co 0.2 ) 4 Thin ribbons of icosahedral quasicrystalline hydrogen storage alloys containing amorphous.
[0042] The performance test results of the obtained alloy are: the maximum electrochemical discharge capacity of chemical hydrogen storage at 35°C is 345mAh / g; the reversible...
Embodiment 3
[0043] Embodiment 3: 1. determine that the chemical composition of target alloy is (Ti 0.6 Zr 0.4 ) 60 (Ni 0.8 Cu 0.3 ) 40 ; 2. adopt metal titanium ingots, zirconium ingots, nickel rods and copper rods whose purity expressed by weight percentage is 99.9%; 3. for (Ti 0.6 Zr 0.4 ) 60 (Ni 0.8 Cu 0.3 ) 40The smelting time before the alloy arc melting is 2 minutes, and the smelting time after the turning is 2 minutes; ④The linear velocity of the copper roller in the quenching condition is 22m / s; the injection pressure of the melt is 0.2MPa; the average thickness is 82μm Alloy strip; Other conditions and preparation method are all identical with embodiment 1, obtain (Ti 0.6 Zr 0.4 ) 60 (Ni 0.8 Cu 0.3 ) 40 Thin ribbons of hydrogen storage alloys containing amorphous icosahedral quasicrystals.
[0044] The performance test results of the obtained alloy are: the maximum electrochemical discharge capacity of chemical hydrogen storage at 30°C is 305mAh / g; the capacity re...
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