CPC Subgroup Additional Only
B22F 2207/17 density or porosity gradients
Full Title
Aspects of the compositions, gradients > Gradients other than composition gradients, e.g. size gradients > density or porosity gradients
B22F 2207/17 Aspects of the compositions, gradients > Gradients other than composition gradients, e.g. size gradients > density or porosity gradients