文中采用Si_3N_4为绝缘壳体,Si_3N_4-B_4C和Si_3N_4-SiC为正、负极,设计制备层压式整体陶瓷热电偶传感器,并进行组织结构分析与性能测试。结果表明:热电偶各层之间以及电极复合材料中第二相与基体之间结合紧密;正、负电极复合材料呈现...文中采用Si_3N_4为绝缘壳体,Si_3N_4-B_4C和Si_3N_4-SiC为正、负极,设计制备层压式整体陶瓷热电偶传感器,并进行组织结构分析与性能测试。结果表明:热电偶各层之间以及电极复合材料中第二相与基体之间结合紧密;正、负电极复合材料呈现典型渗流导电行为;绝缘壳体与正、负电极之间具有良好的热适配性;热电偶在1 600℃时输出热电势与塞贝克系数达到242 m V和154.31μV/℃,在1 200℃保温时热电势偏差为±0.28%,表现出良好的测量精度、灵敏度和稳定度。展开更多
There was elaborated a method for calculating magnetic fields of the Solar System planets. It is based on the quantum theory of electroconductivity of metals and semiconductors. The latter helps to calculate thermoele...There was elaborated a method for calculating magnetic fields of the Solar System planets. It is based on the quantum theory of electroconductivity of metals and semiconductors. The latter helps to calculate thermoelectrical processes, always taking place in the bowels of “hot” planets. Main elements of those processes are planetary temperature gradients, thermo electromotive force and radially directed thermoelectrical currents, which are associated with Seebeck effect. Thermo electromotive force causes directional movement of planetary thermoelectrical currents both in metal cores and other conductive shells of planets. Those currents are big and they generate magnetic fields of proportional intensity. The capacities of the calculation method were tested while finding the reason why the Jupiter magnetic field is such complicated. As a result it was specified that the source of the main magnetic field of a planet is its metal core and the source of an additional magnetic field is the layer of liquid metal hydrogen. There was also found the third source of a local magnetic field of low intensity along the circular zone of the equatorial region. The conclusion that the Jupiter’s main magnetic field has a polarity opposite to the Earth’s one.展开更多
文摘文中采用Si_3N_4为绝缘壳体,Si_3N_4-B_4C和Si_3N_4-SiC为正、负极,设计制备层压式整体陶瓷热电偶传感器,并进行组织结构分析与性能测试。结果表明:热电偶各层之间以及电极复合材料中第二相与基体之间结合紧密;正、负电极复合材料呈现典型渗流导电行为;绝缘壳体与正、负电极之间具有良好的热适配性;热电偶在1 600℃时输出热电势与塞贝克系数达到242 m V和154.31μV/℃,在1 200℃保温时热电势偏差为±0.28%,表现出良好的测量精度、灵敏度和稳定度。
文摘There was elaborated a method for calculating magnetic fields of the Solar System planets. It is based on the quantum theory of electroconductivity of metals and semiconductors. The latter helps to calculate thermoelectrical processes, always taking place in the bowels of “hot” planets. Main elements of those processes are planetary temperature gradients, thermo electromotive force and radially directed thermoelectrical currents, which are associated with Seebeck effect. Thermo electromotive force causes directional movement of planetary thermoelectrical currents both in metal cores and other conductive shells of planets. Those currents are big and they generate magnetic fields of proportional intensity. The capacities of the calculation method were tested while finding the reason why the Jupiter magnetic field is such complicated. As a result it was specified that the source of the main magnetic field of a planet is its metal core and the source of an additional magnetic field is the layer of liquid metal hydrogen. There was also found the third source of a local magnetic field of low intensity along the circular zone of the equatorial region. The conclusion that the Jupiter’s main magnetic field has a polarity opposite to the Earth’s one.
