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|Title:||Sintering mechanisms of attrition milled titanium nano powder|
|Publisher:||MATERIALS RESEARCH SOCIETY|
|Citation:||JOURNAL OF MATERIALS RESEARCH, 20(4), 827-836|
|Abstract:||Detailed sintering Studies have been carried out on attrition milled nanocrystalline titanium powder through isothermal dilatometry over a temperature range of 300-1250 degrees C along with microstructural and x-ray diffraction studies. The sintering behavior of attrition milled nanocrystalline titanium appears to be characterized by: (i) very low activation energies, (ii) high shrinkage anisotropy, (iii) very rapid grain growth in the beta range, and (iv) two kinds of densification processes, namely, intra-agglomerate and inter-agglomerate. Analysis of the kinetic data through sintering diagram approach indicates the operation of particle sliding and grain boundary rotation, type of mechanism in addition to the grain-boundary diffusion, and lattice diffusion as the dominant mass transport mechanisms.|
|Appears in Collections:||Article|
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