Intragranular distribution reinforcement composite material powder and preparation and forming methods thereof
A composite material and reinforcement technology, which is applied in the field of preparing carbon nanotube aluminum matrix composite materials by powder metallurgy method, can solve the problems of complicated ball milling process, etc., and achieve the effects of simple and easy operation, low oxygen content and good strong-plastic matching in the preparation process.
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[0078] The preparation method of intragranular dispersed CNTs / Al composite material in this example includes the preparation process and forming process of intragranular dispersed CNTs / Al composite material powder, and at the same time as a comparison group, the CNTs / Al composite material powder with grain boundary distribution is prepared In this example, 1# represents the composite material powder / block in the state of dispersed CNTs in the grain, and 2# represents the composite material powder / block in the state of dispersed CNTs in the grain boundary. The SEM morphology of the powder primary Al powder is as follows figure 1 As shown in (a), TEM morphology of CNTs powder figure 1 as shown in (b),
[0079] The specific intragranular and grain boundary CNTs / Al composite material powder preparation method comprises the following steps:
[0080] Step 101, powder proportioning and processing, the specific flow diagram is as follows figure 2 Shown:
[0081] A total of 120 g ...
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