Cartridge having a susceptor material
A cartridge for an aerosol-generating system may include a container, a susceptor material, and an aerosol-forming substrate. The container defines a cartridge cavity. The susceptor material is positioned within the cartridge cavity. The susceptor material may define a plurality of interconnected interstices. The aerosol-forming substrate may be in the form of a gel that is solid at room temperature. The gel may be provided so as to be positioned within the plurality of interconnected interstices.
1. A cartridge for an aerosol-generating system, the cartridge comprising:
a container defining a cartridge cavity, the container including a cylindrical inner surface at least partially defining a cylindrical portion of the cartridge cavity;
a susceptor material defining a cylindrical outer surface, the susceptor material occupying the cylindrical portion of the cartridge cavity such that the cylindrical outer surface of the susceptor material is in contact with the cylindrical inner surface of the container, the susceptor material including a metallic wool or a metallic foam, and the susceptor material defining a plurality of interconnected interstices; and
an aerosol-forming substrate within the plurality of interconnected interstices, the aerosol-forming substrate being a gel with a stable form at room temperature, the susceptor material and the aerosol-forming substrate being coextensive with one another within the cylindrical portion of the cartridge cavity.
2. The cartridge according to claim 1 , wherein the susceptor material comprises a ferromagnetic metallic material.
3. The cartridge according to claim 1 , wherein the susceptor material comprises at least one of ferritic iron, ferromagnetic steel, stainless steel, or aluminium.
4. The cartridge according to claim 1 , wherein the susceptor material comprises the metallic wool.
5. The cartridge according to claim 4 , wherein the metallic wool comprises a bundle of metallic filaments defining spaces in between that form the plurality of interconnected interstices.
6. The cartridge according to claim 1 , wherein the susceptor material comprises the metallic foam.
7. The cartridge according to claim 6 , wherein the metallic foam is an open-cell foam defining open cells that form the plurality of interconnected interstices.
8. The cartridge according to claim 1 , wherein the cartridge cavity is a blind cavity having a closed end and an open end.
9. The cartridge according to claim 8 , further comprising:
a seal extending across the open end of the cartridge cavity so that the susceptor material and the aerosol-forming substrate are sealed within the cartridge cavity by the seal.
10. The cartridge according to claim 1 , wherein the gel is a thermoreversible gel.
11. The cartridge according to claim 1 , wherein the gel has a melting temperature of at least 50 degrees Celsius.
12. The cartridge according to claim 1 , wherein the gel comprises at least one of nicotine or a tobacco product.
13. An aerosol-generating system comprising:
a cartridge comprising a container, a susceptor material defining a cylindrical outer surface, and an aerosol-forming substrate, the container defining a cartridge cavity, the container including a cylindrical inner surface at least partially defining a cylindrical portion of the cartridge cavity, the susceptor material occupying the cylindrical portion of the cartridge cavity such that the cylindrical outer surface of the susceptor material is in contact with the cylindrical inner surface of the container, the susceptor material defining a plurality of interconnected interstices, the aerosol-forming substrate within the plurality of interconnected interstices, the aerosol-forming substrate being a gel with a stable form at room temperature, the susceptor material and the aerosol-forming substrate being coextensive with one another within the cylindrical portion of the cartridge cavity; and
an aerosol-generating device comprising a housing, an electrical heater, an electrical power supply, and a controller, the housing defining a device cavity configured to receive the cartridge, the electrical heater comprising an inductive heating element configured to heat the susceptor material when the cartridge is received within the device cavity, the controller configured to control a supply of electrical power from the electrical power supply to the electrical heater.
14. A method of assembling a cartridge for an aerosol-generating system, the method comprising:
providing a container defining a cartridge cavity the container including a cylindrical inner surface at least partially defining a cylindrical portion of the cartridge cavity;
inserting a susceptor material into the cartridge cavity, the susceptor material defining a cylindrical outer surface, such that the susceptor material occupies a cylindrical portion of the cartridge cavity and the cylindrical outer surface of the susceptor material is in contact with the cylindrical inner surface of the container, the susceptor material defining a plurality of interconnected interstices;
introducing a liquid aerosol-forming substrate into the cartridge cavity; and
gelating the liquid aerosol-forming substrate to form a gel with a stable form at room temperature, the gel being within the plurality of interconnected interstices, the susceptor material and the aerosol-forming substrate being coextensive with one another within the cylindrical portion of the cartridge cavity.
15. The method according to claim 14 , wherein the cartridge cavity is a blind cavity having a closed end and an open end, the method further comprising:
positioning a seal across the open end of the cartridge cavity; and
securing the seal to the container so that the susceptor material and the gel are sealed within the cartridge cavity by the seal.
16. The cartridge according to claim 1 , wherein the susceptor material comprises a coating encapsulating a surface of the susceptor material.
17. The cartridge according to claim 16 , wherein the coating comprises a glass, a ceramic, or both a glass and a ceramic.