An aerosol-forming article for use in an electrically heated aerosol-generating device is provided, the aerosol-forming article including a mouthpiece, an aerosol-forming substrate, and a plurality of magnetic particles including a magnetic material having a Curie temperature of between 60 degrees Celsius and 200 degrees Celsius. An electrically heated aerosol-generating device for receiving the aerosol-forming article is also provided, the device including a heater element configured to heat the aerosol-forming article, an inductor, and a controller configured to measure an inductance of the inductor and to control a supply of electrical current to the heater element in response to the measured inductance.

An aerosol-generating article is provided, including: a plurality of elements assembled within a wrapper in the form of a rod having a mouth end and a distal end upstream from the mouth end, the plurality of elements including an aerosol-forming substrate disposed at or towards the distal end of the rod; and a susceptor configured to heat the aerosol-forming substrate, the susceptor including a first susceptor material and a second susceptor material being different from the first susceptor material, the second susceptor material being plated, deposited, or welded onto the first susceptor material, the susceptor being an elongate susceptor having a length dimension that is greater than a width dimension thereof or than a thickness dimension thereof, the susceptor being disposed in a radially central position within the aerosol-forming substrate, and the second susceptor material having a Curie temperature that is lower than 500? C.

There is described an aerosol-forming substrate for use in combination with an inductive heating device. The aerosol-forming substrate comprises a solid material capable of releasing volatile compounds that can form an aerosol upon heating of the aerosol-forming substrate and at least a first susceptor material for heating of the aerosol-forming substrate. The first susceptor material is arranged in thermal proximity of the solid material. The aerosol-forming substrate further comprises at least a second susceptor material having a second Curie-temperature which is lower than a predefined maximum heating temperature of the first susceptor material. There is also described an aerosol-delivery system.

An induction heating system and methods of forming an induction heating system are presented. The induction heating system comprises a conductor, a susceptor surrounding the conductor, and magnetic field reduction. The susceptor has a Curie temperature. The magnetic field reduction is configured to reduce magnetic fields escaping the induction heating system when the susceptor is at the Curie temperature independent of a layout of the induction heating system within an induction heating device.

Provided are systems, devices, and methods for a smart thermal control. The thermal control system may include an energy source, a first deposit of energetic particles having an inherent Curie temperature, and at least one heat receiving object. Upon application of energy from the energy source to the first deposit of energetic particles the energetic particles are heated and can transfer heat to the at least one heat receiving object. The temperature of the first deposit can be controlled by the application of energy to be heated to various specific temperatures up to the Curie temperature. Applications including de-icing, ice prevention, cooking, medical devices, ignition systems and autonomous vehicles, as well as applications in space, are discussed.

Disclosed is an article for use with apparatus for heating smokable material to volatilize at least one component of the smokable material. The article includes a smokable material, such as tobacco, and a heater for heating the smokable material. The heater comprises heating material that is heatable by penetration with a varying magnetic field. The heating material has a Curie point temperature that is less than the combustion temperature of the smokable material.

A method for controlling aerosol production in an aerosol-generating device including a heating arrangement and a power source is provided, including: performing a calibration process for measuring calibration values, the arrangement configured to inductively heat the susceptor based on the values, and the process including controlling power to increase a temperature of the susceptor, monitoring a conductance value or a resistance value of the susceptor, interrupting power when the conductance value reaches a maximum or when the resistance value reaches a minimum, the value at maximum conductance or at minimum resistance being a second calibration value, and monitoring the conductance value until it reaches a minimum or the resistance value until it reaches a maximum, the value at minimum conductance or at maximum resistance being a first calibration value, the process being in response to detecting a control signal associated with an end of a predetermined duration pre-heating process.

A method for controlling aerosol production in an aerosol-generating device is provided, the aerosol-generating device including an inductive heating arrangement and a power source configured to provide power to the inductive heating arrangement, and the method including: performing, during a first heating phase during user operation of the aerosol-generating device for producing an aerosol, a calibration process including measuring one or more calibration values associated with a susceptor inductively coupled to the inductive heating arrangement, the susceptor being configured to heat an aerosol-forming substrate; and during a second heating phase during the user operation of the aerosol-generating device for producing the aerosol, controlling power provided to the inductive heating arrangement such that a temperature of the susceptor is adjusted based on the one or more calibration values. An aerosol-generating system is also provided, including the aerosol-generating device, and an aerosol-generating article including the aerosol-forming substrate and the susceptor.

A smart susceptor assembly includes a plurality of susceptor elements and a plurality of conductor elements. Each susceptor element can be paired with one conductor element to form a susceptor tab. When exposed to a magnetic flux field, the plurality of susceptor elements heat to a leveling temperature. During the heating, the plurality of conductor elements alter both a thermal performance and an electrical operation of the smart susceptor assembly and, more particularly, the susceptor elements. Various configurations of the susceptor elements and conductor elements are described.

An inductive heating device (1) comprises: a device housing (10), a DC power source (11), a power supply electronics (13) comprising a DC/AC inverter (132) including a Class-E power amplifier with a transistor switch (1320), a transistor switch driver circuit (1322), and an LC load network (1323) configured to operate at low ohmic load (1324), the LC load network (1323) comprising a shunt capacitor (C1) and a series connection of a capacitor (C2) and an inductor (L2), and a cavity (14) arranged in the device housing (10), the cavity (14) having an internal surface shaped to accommodate at least a portion of the aerosol-forming substrate (20), wherein the cavity (14) is arranged such that the inductor (L2) is inductively coupled to the susceptor (21) of the aerosol-forming substrate (20) during operation.