A high-throughput preparation method for preparing metal diffusion couples with large melting point differences
A technology of metal diffusion and low-melting-point metals, which is applied in the field of high-throughput preparation, can solve the problems of no high-melting-point metals being found, and achieve the effects of easy visualization of the preparation process, excellent effects, and less metal content
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Embodiment 1
[0018] (1) Put A (pure Sn) and B (pure W) metal wires with a length of 2cm and the same diameter (1mm) into the bottom seal with an inner diameter of 1.1mm and a wall thickness of 1mm in the order of B on the bottom and A on the top placed vertically in a quartz tube;
[0019] (2) After the A / B diffusion couple is placed, place a quartz column with a length of 5 cm and a diameter of 1 mm above the diffusion couple to apply a certain pressure on the contact surface of the diffusion couple.
[0020] (3) Use vacuum equipment to evacuate the quartz tube to a high vacuum and flush 99.99% argon 4 times. The specific process is: the pre-vacuum degree is -3 Pa, then rush into 99.99% argon with a pressure of 1.0 atmospheres, and finally keep a certain vacuum degree of 1×10 -3 Pa. Fix the quartz tube and place it vertically;
[0021] (5) Use an electric soldering iron to heat the A\B diffusion couple from bottom to top on the quartz tube, especially to melt the low melting point metal...
Embodiment 2
[0024] (1) The length is 2cm and the same diameter (3mm): A 1 (pure Sn), B 1 (pure Cu) wire, A 2 (Pure Al), B 2 (Pure Ni) metal wire, metal wire according to Bi 1 under A i In the order above (i=1,2), the B j \A i Put it into a vertically placed quartz tube with an inner diameter of 3.1mm and a wall thickness of 1mm;
[0025] (2) in B j \A i A quartz column with a diameter of 3 mm and a length of 4 cm is placed between the couples to separate the diffusion couples;
[0026] (3) After the diffusion couple is placed, finally place a quartz column with a diameter of 3 mm and a length of 4 cm with the quartz tube, so that the pressure applied to the sample can be adjusted.
[0027] (4) Use vacuum equipment to evacuate the quartz tube to a high vacuum and flush 99.99% argon 4 times. The specific process is: the pre-vacuum degree is -3 Pa, then rush into 99.99% argon with a pressure of 1.0 atmospheres, and finally keep a certain vacuum degree of 1×10 -3 Pa. Fix the quartz...
Embodiment 3
[0031] (1) The length is 5cm and the same diameter (10mm): A 1 (pure Sn), B1 (pure Cu) metal rod; A 2 (Pure Pb), B 2 (pure Al) metal rod; A 3 (Pure Al), B 3 (pure Mo) metal rod. Metal Rod Press Bi 1 under A i In the order above (i=1,2), the B j \A i Put it into a vertically placed quartz tube with an inner diameter of 10.1mm and a wall thickness of 1mm;
[0032] (2) Each pair of Aces i \B j A quartz column with a length of 4 cm and a diameter of 10 mm is placed between the couples to separate the diffusion couples;
[0033] (3) After the diffusion couple is placed, finally place a quartz column with a diameter of 10 mm and a length of 4 cm with the quartz tube, so that the pressure applied to the sample can be adjusted.
[0034] (4) Use vacuum equipment to evacuate the quartz tube to a high vacuum and flush 99.99% argon 4 times. The specific process is: the pre-vacuum degree is -3 Pa, then rush into 99.99% argon with a pressure of 1.0 atmospheres, and finally keep a...
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