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An energy conversion system, comprising: a reservoir container including at least two chambers of inversely variable volume for respectively storing a quantity of fuel and receiving a quantity of exhaust; a means for decreasing the volume of the first chamber while concurrently increasing the volume

An energy conversion system, comprising: a reservoir container including at least two chambers of inversely variable volume for respectively storing a quantity of fuel and receiving a quantity of exhaust; a means for decreasing the volume of the first chamber while concurrently increasing the volume of the second chamber; at least one energy conversion device; first means for communicating fuel between the at least one energy conversion device and a first of the chambers in the reservoir container; and second means for communicating exhaust between the at least one energy conversion device and a second of the chambers in the reservoir container. The reservoir container may be transported to a recharging/refilling station or recharged in-situ. A particular application for metal-air fuel cell power systems is shown and described.

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An energy conversion system, comprising: a reservoir container including at least two chambers of inversely variable volume for respectively storing a quantity of fuel and receiving a quantity of exhaust; a means for decreasing the volume of the first chamber while concurrently increasing the volume

An energy conversion system, comprising: a reservoir container including at least two chambers of inversely variable volume for respectively storing a quantity of fuel and receiving a quantity of exhaust; a means for decreasing the volume of the first chamber while concurrently increasing the volume of the second chamber; at least one energy conversion device; first means for communicating fuel between the at least one energy conversion device and a first of the chambers in the reservoir container; and second means for communicating exhaust between the at least one energy conversion device and a second of the chambers in the reservoir container. The reservoir container may be transported to a recharging/refilling station or recharged in-situ. A particular application for metal-air fuel cell power systems is shown and described. , TiAl, NiAl, and FeAl. 3. The magnetic recording medium according to claim 1 wherein the intermetallic nitride comprises at least one of the following aluninum-containing intermetallic alloys: Ti3Al, Nb3Al, CrAl, CuAl, SiAl, and TiAl. 4. The magnetic recording medium according to claim 1 wherein the intermetallic nitride comprises at least one of the following aluminum-containing intermetallic alloys: TiAl, Ti3Al, and Nb3Al. 5. The magnetic recording medium according to claim 1 wherein the seedlayer has a thickness of about 1-200 nm. 6. The magnetic recording medium according to claim 1 wherein the magnetic layer contacts the underlayer. 7. The magnetic recording medium according to claim 6 further comprising a protective layer covering the magnetic layer and a lubricant layer covering the protective layer. 8. A method for making a magnetic recording medium comprising: depositing a seedlayer, comprising an aluminum-containing intermetallic nitride, on and in contact with a substrate, wherein the intermetallic nitride comprises an aluminum-containing intermetallic alloy, and the substrate is nickel phosphorous or glass; depositing a non-magnetic underlayer on and in contact with the seedlayer, wherein the underlayer is chromium or a chromium alloy; and depositing a magnetic layer over the underlayer. 9. The method according to claim 8 wherein depositing the seedlayer is carried out by sputtering with the intermetallic nitride comprising at least one of the following aluminum-containing intermetallic alloys: Ti3Al, Nb3Al, CrAl, CuAl, SiAl, and TiAl. 10. The method according to claim 8 wherein depositing the seedlayer is carried out by sputtering with the intermetallic nitride comprising at least one of the following aluminum-containing intermetallic alloys: TiAl, Ti3Al, and Nb3Al. 11. A method for making a magnetic recording medium comprising: depositing a seedlayer, comprising an aluminum-containing intermetallic nitride, on a substrate, wherein the intermetallic nitride comprises an aluminum-containing intermetallic alloy, depositing the seedlayer is carried out by sputtering with the intermetallic nitride comprising at least one of the following aluminum-containing intermetallic alloys: Ti3Al, Nb3Al, CrAl, CuAl, SiAl, and TiAl, and depositing the seedlayer is carried out by reactively sputtering the aluminum-containing intermetallic alloy in an atmosphere comprising argon and nitrogen; depositing a non-magnetic underlayer over the seedlayer; and depositing a magnetic layer over the underlayer. 12. The method according to claim 11 wherein depositing the seedlayer is carried out with an argon:nitrogen ratio of about 1:10 to 1:1. 13. A method for making a magnetic recording medium comprising: depositing a seedlayer, comprising an aluminum-containing intermetallic nitride, on a substrate, wherein the intermetallic nitride comprises an aluminum-containing intermetallic alloy, depositing the seedlayer is carried out by sputtering with the intermetallic nitride comprising at least one of the following aluminum-containing intermetallic alloys: Ti3Al, Nb3Al, CrAl, CuAl, SiAl, and TiAl, and depositing the seedlayer is carried out using a sputtering target, comprising nitrogen plus at least one of the aluminum-containing intermetallic alloys, in an argon atmosphere; depositing a non-magnetic underlayer over the seedlayer; and depositing a magnetic layer over the underlayer. 14. The method according to claim 13 wherein depositing the seedlayer is carried out with the target containing about 1 to 50% atomic nitrogen. 15. A method for making a magnetic recording medium comprising: depositing a seedlayer, comprising an aluminum-containing intermetallic nitride, on a substrate, the intermetallic nitride comprising at least one of the following aluminum-containing intermetallic alloys: Ti