1985 年 33 巻 378 号 p. 433-437
As the first step of the study of combustion control of solid propellants by electrical discharges, the effects of an arc discharge, which flows along the burning surface, on the burning rate and on the increase of enthalpy of the combustion product were investigated. For specially devised composite propellants, which are composed of Al powder and teflon powder, it was shown that the combustion can be controlled by an arc discharge; the combustion continues when the arc discharge is applied and is interrupted when the arc discharge breaks. In the present investigation, it was also shown that an arc discharge coupled with a high frequency electrical discharge has potentiality as an effective ignition method for solid propellants. For the use of this type of combustion control to an ignitor for a solid propellant rocket motor or to a control rocket motor, this method lacks flexibility in the configuration scale and needs a relatively large electric power at present stage.