Aluminum composite material having neutron-absorbing ability

A production method of an aluminum composite material having neutron absorbing power comprising:

• adding a B or B compound powder having neutron absorbing power in an amount such that the proportion of B is 1.5% by weight or more to 9% by weight or less to an Al or Al alloy powder, wherein the Al or Al alloy is selected from the group consisting of pure aluminum metal, Al—Mg—Si-based alloys, Al—Zn—Mg-based alloys, Al—Fe-based alloys, and Al—Mn-based alloys;
• and
• pressurized sintering the powder, wherein said pressurized sintering is at least one of hot extrusion, hot rolling, hot hydrostatic pressing and hot pressing.

An aluminum composite material having neutron absorbing power, wherein

• the aluminum composite material contains an Al or an Al alloy matrix phase, B4C having neutron absorbing power in an amount such that the proportion of B is 1.5% by weight or more to 9% by weight or less, and
• the aluminum composite material has been obtained by adding B4C particles having a mean particle size of 1 to 60 μm to Al or Al alloy powder having a mean particle size of said is 5 to 150 μm, and then pressure sintering, wherein said pressurized sintering is at least one of hot extrusion, hot rolling, hot hydrostatic pressing and hot pressing.

An aluminum composite material having neutron absorbing power, wherein

• the aluminum composite material contains an Al or an Al alloy matrix phase, B or a B compound having neutron absorbing power in an amount such that the proportion of B is 1.5% by weight or more to 9% by weight or less, and
• the aluminum composite material has been obtained by adding the B or B compound powder to the Al or Al alloy powder, charging the powder into a can after heating the inside of the can to contain the powder to 350-550° C. followed by vacuum degassing, and while maintaining the vacuum inside the can, subjecting the powder to pressurized sintering, wherein said pressurized sintering is at least one of hot extrusion, hot rolling, hot hydrostatic pressing and hot pressing.

An aluminum composite material having neutron absorbing power, wherein

• the aluminum composite material contains an Al alloy matrix phase, wherein the Al alloy is selected from the group consisting of Al—Mg—Si-based alloys;
• and B or a B compound having neutron absorbing power in an amount such that the proportion of B is 1.5% by weight or more to 5% by weight or less, and
• the aluminum composite material has been pressurized sintered, wherein said pressurized sintering is at least one of hot extrusion, hot rolling, hot hydrostatic pressing and hot pressing.

A production method of an aluminum composite material having neutron absorbing power comprising:

• adding a B or B compound powder having neutron absorbing power in an amount such that the proportion of B is 1.5% by weight or more to 5% by weight or less to an Al alloy powder, wherein the Al alloy is selected from the group consisting of Al—Mg—Si-based alloys;
• and
• pressurized sintering the powder, wherein said pressurized sintering is at least one of hot extrusion, hot rolling, hot hydrostatic pressing and hot pressing.