Performance requirements of electroactive polymer materials used for transducer devices include dielectric breakdown strength, Young's modulus, dielectric constant, thickness, and electromechanical instability. There are correlation relationships therebetween but definitions of the correlation relationships have not been achieved. Therefore, it is necessary to search for an excellent material by trial and error, which requires a great deal of work. Disclosed herein is a curable elastomer composition that includes a compound having a high dielectric functional group. A cured product of the composition satisfies the following formula:

[00001]$E={\alpha \left(\frac{Y}{{\epsilon }_0{\epsilon }_r}\right)}^{0.5}$

where E is the dielectric breakdown strength in the range of 50 V/μm to 200 V/μm, α is a constant in the range of 0.4 to 0.9, Y is Young's modulus and is in the range of 0.001 MPa to 10 MPa, ε.sub.γ is a specific dielectric constant and is 100 or less, and ε.sub.0 represents the dielectric constant of vacuum.

An alumina-ceramic-based electrical insulator, to a method for producing the insulator, and to a vacuum tube includes the insulator. The electrical insulator is for insulating two electrodes of a vacuum tube through which a charged particle beam flows, the electrical insulator being formed of an alumina-based ceramic. The ceramic comprises a vitreous phase of between 2% and 8% by weight into which at least one metal oxide is diffused from a face of the electrical insulator.

An alumina-ceramic-based electrical insulator, to a method for producing the insulator, and to a vacuum tube includes the insulator. The electrical insulator is for insulating two electrodes of a vacuum tube through which a charged particle beam flows, the electrical insulator being formed of an alumina-based ceramic. The ceramic comprises a vitreous phase of between 2% and 8% by weight into which at least one metal oxide is diffused from a face of the electrical insulator.

A method of manufacturing a connector device suitable for making an inter or intra static electrical energy converter connection. The device includes at least two flat conductors and at least one insulating material. The said method includes: preparing each flat conductor individually; applying at least one coat of enamel varnish to each conductor, which is thinner than a desired final thickness; carrying out cross-linking of the enamel coating; and repeating the depositing of a layer of enameling resin and the cross-linking until the chosen thickness is reached. The varnish coated conductors of the connector device are assembled by using a template and connecting elements.

A method of manufacturing a connector device suitable for making an inter or intra static electrical energy converter connection. The device includes at least two flat conductors and at least one insulating material. The said method includes: preparing each flat conductor individually; applying at least one coat of enamel varnish to each conductor, which is thinner than a desired final thickness; carrying out cross-linking of the enamel coating; and repeating the depositing of a layer of enameling resin and the cross-linking until the chosen thickness is reached. The varnish coated conductors of the connector device are assembled by using a template and connecting elements.

An insulation useful in the field of building materials, refrigeration, cryogenics, and shipping. The insulation has reduced radiative heat transfer by applying coating to the insulation material in order to alter the emissivity, including the infrared electromagnetic spectrum.

An insulation useful in the field of building materials, refrigeration, cryogenics, and shipping. The insulation has reduced radiative heat transfer by applying coating to the insulation material in order to alter the emissivity, including the infrared electromagnetic spectrum.

This disclosure relates to a dry film structure that includes a carrier substrate; and a dielectric film supported by the carrier substrate. The dielectric film includes at least one dielectric polymer and low amounts of metals.

This disclosure relates to a dry film structure that includes a carrier substrate; and a dielectric film supported by the carrier substrate. The dielectric film includes at least one dielectric polymer and low amounts of metals.

A tank including a fluid reservoir, a communication module, a controller, and at least one sensor. The fluid reservoir is configured to be in fluid communication with a cable segment. The communication module is configured to communicate with an external device. The sensor is configured to detect an injection parameter value, encode the injection parameter value in a sensor signal, and send the sensor signal to the controller. The controller is configured to automatically instruct the communication module to transmit information to the external device based on the injection parameter value.