Magnetorheological(MR)materials are a class of smart material,whose the mechanical/rheological state can be controlled under a magnetic field.Magnetorheological materials are typically fluids,gels,or elastomers.In thi...Magnetorheological(MR)materials are a class of smart material,whose the mechanical/rheological state can be controlled under a magnetic field.Magnetorheological materials are typically fluids,gels,or elastomers.In this study,anisotropic and isotropic magneto-rheological elastomer(MRE)samples were fabricated using a silicone rubber matrix with carbonyl iron particles as filler particles.The magnetic field-dependent inductance properties of these samples were studied using inductors specially designed for the analysis.The effect of the filler particle content,fabrication conditions,and inductance properties were characterized using a self-built system in both constant and transient magnetic fields.These factors show a significant effect on the inductance properties of the MRE inductor under an applied magnetic field.The anisotropic MRE inductor was more sensitive than the inductor based on an isotropic MRE.Owing to the presence of a constant magnetic field,the inductance value of the MRE inductor decreased with an increase in the external magnetic field.An attempt in elucidation of the mechanism is reported here.This study may enable the MRE to be widely used in practical applications such as monitoring magnetic field or detecting the filler particle content inside MR materials.展开更多
In recent years, a new approach named the spherical tokamak or spherical torus （ST） in the magnetic fusion research has made remarkable progress, parallel to the tokamak development including the international therm...In recent years, a new approach named the spherical tokamak or spherical torus （ST） in the magnetic fusion research has made remarkable progress, parallel to the tokamak development including the international thermonuclear experimental reactor （ITER） projectTM. In ST experiments, magnetohydrodynamics stable high beta value （the ratio of the plasma pressure to the toroidal magnetic pressure） up to 50% has been routinely obtained. The confinement scaling for ST, though being less-confident compared to the database of tokamaks, seems at least to be as good as the tokamak.展开更多
基金Project(cstc2019jcyj-msxm X0005)supported by General Program of Chongqing Natural Science Foundation,ChinaProject(51905062)supported by the National Natural Science Foundation of China。
文摘Magnetorheological(MR)materials are a class of smart material,whose the mechanical/rheological state can be controlled under a magnetic field.Magnetorheological materials are typically fluids,gels,or elastomers.In this study,anisotropic and isotropic magneto-rheological elastomer(MRE)samples were fabricated using a silicone rubber matrix with carbonyl iron particles as filler particles.The magnetic field-dependent inductance properties of these samples were studied using inductors specially designed for the analysis.The effect of the filler particle content,fabrication conditions,and inductance properties were characterized using a self-built system in both constant and transient magnetic fields.These factors show a significant effect on the inductance properties of the MRE inductor under an applied magnetic field.The anisotropic MRE inductor was more sensitive than the inductor based on an isotropic MRE.Owing to the presence of a constant magnetic field,the inductance value of the MRE inductor decreased with an increase in the external magnetic field.An attempt in elucidation of the mechanism is reported here.This study may enable the MRE to be widely used in practical applications such as monitoring magnetic field or detecting the filler particle content inside MR materials.
文摘In recent years, a new approach named the spherical tokamak or spherical torus （ST） in the magnetic fusion research has made remarkable progress, parallel to the tokamak development including the international thermonuclear experimental reactor （ITER） projectTM. In ST experiments, magnetohydrodynamics stable high beta value （the ratio of the plasma pressure to the toroidal magnetic pressure） up to 50% has been routinely obtained. The confinement scaling for ST, though being less-confident compared to the database of tokamaks, seems at least to be as good as the tokamak.
