Prepn process of high temperature superconductive Ni-W alloy
A high-temperature superconductivity and alloy technology, which is applied in the field of polycrystalline textured Ni-W baseband preparation to achieve the effect of uniform composition
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
example 1
[0027] Example 1. adopt Ni powder and W powder as raw materials, the purity is 99.9% by weight, the particle size of Ni powder is 4~6 microns, the particle size of W powder is 3~4 microns, and W accounts for 3% by atomic percentage in the alloy. After mixing evenly, put it into a mold for SPS sintering. The sintering temperature is 800° C., and the sintering holding time is 10 minutes. The sintering pressure is 80MPa. A Ni-3%W block with a density of 98% was obtained. Figure 1 is its backscattered electron diffraction (EBSD) diagram, which shows that the grain size is relatively uniform. Figure 2 is the grain distribution data calculated from the EBSD results, the data shows that the average grain size of the sample is about 10 microns, and the grains are fine. The results of energy spectrum test show that the distribution of W in the alloy is very uniform.
[0028] Cold rolling and recrystallization annealing are carried out to the Ni-3%W block at room temperature, the pa...
example 2
[0029] Example 2. Adopting Ni powder and W powder as raw materials, the purity is 99.99% by weight, the particle size of Ni powder is 3~5 microns, the particle size of W powder is 3~5 microns, and W accounts for 5% by atom in the alloy. After mixing evenly, put it into a mold for SPS sintering. The sintering temperature is 1000° C., and the sintering holding time is 5 minutes. The sintering pressure is 50MPa. A Ni-5%W block with a density of 98.5% was obtained. Figure 4 is its backscattered electron diffraction (EBSD) diagram, which shows that the grain size is uniform. Fig. 5 is the grain distribution data calculated from the EBSD results, and the data shows that the average grain size of the sample is about 10 microns, and the grains are fine. The results of energy spectrum test show that the distribution of W in the alloy is very uniform.
[0030] Cold rolling and recrystallization annealing are carried out on the Ni-5% W block at room temperature, the deformation of ea...
example 3
[0031] Example 3. adopt Ni powder and W powder as raw materials, the purity is 99.9% by weight, the particle size of Ni powder is 4~6 microns, the particle size of W powder is 3~4 microns, and W accounts for 7% of atomic percentage in the alloy. After mixing evenly, put it into a mold for SPS sintering. The sintering temperature is 1200°C, and no sintering heat preservation is carried out. The sintering pressure is 30MPa. A Ni-7%W block with a density of 97.7% was obtained. Figure 8 is its backscattered electron diffraction (EBSD) diagram, which shows that the grain size is uniform. Fig. 9 is the grain distribution data calculated from the EBSD results, and the data shows that the average grain size of the sample is about 6.6 microns, and the grains are fine. The results of energy spectrum test show that the distribution of W in the alloy is very uniform.
[0032]Cold rolling and recrystallization annealing are carried out on the Ni-7%W block at room temperature, the defor...
PUM
| Property | Measurement | Unit |
|---|---|---|
| particle size | aaaaa | aaaaa |
| particle size | aaaaa | aaaaa |
| particle size | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More